1
|
Bansal S, Creed IF, Tangen BA, Bridgham SD, Desai AR, Krauss KW, Neubauer SC, Noe GB, Rosenberry DO, Trettin C, Wickland KP, Allen ST, Arias-Ortiz A, Armitage AR, Baldocchi D, Banerjee K, Bastviken D, Berg P, Bogard MJ, Chow AT, Conner WH, Craft C, Creamer C, DelSontro T, Duberstein JA, Eagle M, Fennessy MS, Finkelstein SA, Göckede M, Grunwald S, Halabisky M, Herbert E, Jahangir MMR, Johnson OF, Jones MC, Kelleway JJ, Knox S, Kroeger KD, Kuehn KA, Lobb D, Loder AL, Ma S, Maher DT, McNicol G, Meier J, Middleton BA, Mills C, Mistry P, Mitra A, Mobilian C, Nahlik AM, Newman S, O’Connell JL, Oikawa P, van der Burg MP, Schutte CA, Song C, Stagg CL, Turner J, Vargas R, Waldrop MP, Wallin MB, Wang ZA, Ward EJ, Willard DA, Yarwood S, Zhu X. Practical Guide to Measuring Wetland Carbon Pools and Fluxes. Wetlands (Wilmington) 2023; 43:105. [PMID: 38037553 PMCID: PMC10684704 DOI: 10.1007/s13157-023-01722-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/24/2023] [Indexed: 12/02/2023]
Abstract
Wetlands cover a small portion of the world, but have disproportionate influence on global carbon (C) sequestration, carbon dioxide and methane emissions, and aquatic C fluxes. However, the underlying biogeochemical processes that affect wetland C pools and fluxes are complex and dynamic, making measurements of wetland C challenging. Over decades of research, many observational, experimental, and analytical approaches have been developed to understand and quantify pools and fluxes of wetland C. Sampling approaches range in their representation of wetland C from short to long timeframes and local to landscape spatial scales. This review summarizes common and cutting-edge methodological approaches for quantifying wetland C pools and fluxes. We first define each of the major C pools and fluxes and provide rationale for their importance to wetland C dynamics. For each approach, we clarify what component of wetland C is measured and its spatial and temporal representativeness and constraints. We describe practical considerations for each approach, such as where and when an approach is typically used, who can conduct the measurements (expertise, training requirements), and how approaches are conducted, including considerations on equipment complexity and costs. Finally, we review key covariates and ancillary measurements that enhance the interpretation of findings and facilitate model development. The protocols that we describe to measure soil, water, vegetation, and gases are also relevant for related disciplines such as ecology. Improved quality and consistency of data collection and reporting across studies will help reduce global uncertainties and develop management strategies to use wetlands as nature-based climate solutions. Supplementary Information The online version contains supplementary material available at 10.1007/s13157-023-01722-2.
Collapse
Affiliation(s)
- Sheel Bansal
- U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND USA
| | - Irena F. Creed
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON Canada
| | - Brian A. Tangen
- U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND USA
| | - Scott D. Bridgham
- Institute of Ecology and Evolution, University of Oregon, Eugene, OR USA
| | - Ankur R. Desai
- Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI USA
| | - Ken W. Krauss
- U.S. Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA USA
| | - Scott C. Neubauer
- Department of Biology, Virginia Commonwealth University, Richmond, VA USA
| | - Gregory B. Noe
- U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, VA USA
| | | | - Carl Trettin
- U.S. Forest Service, Pacific Southwest Research Station, Davis, CA USA
| | - Kimberly P. Wickland
- U.S. Geological Survey, Geosciences and Environmental Change Science Center, Denver, CO USA
| | - Scott T. Allen
- Department of Natural Resources and Environmental Science, University of Nevada, Reno, Reno, NV USA
| | - Ariane Arias-Ortiz
- Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, CA USA
| | - Anna R. Armitage
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX USA
| | - Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, CA USA
| | - Kakoli Banerjee
- Department of Biodiversity and Conservation of Natural Resources, Central University of Odisha, Koraput, Odisha India
| | - David Bastviken
- Department of Thematic Studies – Environmental Change, Linköping University, Linköping, Sweden
| | - Peter Berg
- Department of Environmental Sciences, University of Virginia, Charlottesville, VA USA
| | - Matthew J. Bogard
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB Canada
| | - Alex T. Chow
- Earth and Environmental Sciences Programme, The Chinese University of Hong Kong, Shatin, Hong Kong SAR China
| | - William H. Conner
- Baruch Institute of Coastal Ecology and Forest Science, Clemson University, Georgetown, SC USA
| | - Christopher Craft
- O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN USA
| | - Courtney Creamer
- U.S. Geological Survey, Geology, Minerals, Energy and Geophysics Science Center, Menlo Park, CA USA
| | - Tonya DelSontro
- Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON Canada
| | - Jamie A. Duberstein
- Baruch Institute of Coastal Ecology and Forest Science, Clemson University, Georgetown, SC USA
| | - Meagan Eagle
- U.S. Geological Survey, Woods Hole Coastal & Marine Science Center, Woods Hole, MA USA
| | | | | | - Mathias Göckede
- Department for Biogeochemical Signals, Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Sabine Grunwald
- Soil, Water and Ecosystem Sciences Department, University of Florida, Gainesville, FL USA
| | - Meghan Halabisky
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA USA
| | | | | | - Olivia F. Johnson
- U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND USA
- Departments of Biology and Environmental Studies, Kent State University, Kent, OH USA
| | - Miriam C. Jones
- U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, VA USA
| | - Jeffrey J. Kelleway
- School of Earth, Atmospheric and Life Sciences and Environmental Futures Research Centre, University of Wollongong, Wollongong, NSW Australia
| | - Sara Knox
- Department of Geography, McGill University, Montreal, Canada
| | - Kevin D. Kroeger
- U.S. Geological Survey, Woods Hole Coastal & Marine Science Center, Woods Hole, MA USA
| | - Kevin A. Kuehn
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS USA
| | - David Lobb
- Department of Soil Science, University of Manitoba, Winnipeg, MB Canada
| | - Amanda L. Loder
- Department of Geography, University of Toronto, Toronto, ON Canada
| | - Shizhou Ma
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK Canada
| | - Damien T. Maher
- Faculty of Science and Engineering, Southern Cross University, Lismore, NSW Australia
| | - Gavin McNicol
- Department of Earth and Environmental Sciences, University of Illinois Chicago, Chicago, IL USA
| | - Jacob Meier
- U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND USA
| | - Beth A. Middleton
- U.S. Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA USA
| | - Christopher Mills
- U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver, CO USA
| | - Purbasha Mistry
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK Canada
| | - Abhijit Mitra
- Department of Marine Science, University of Calcutta, Kolkata, West Bengal India
| | - Courtney Mobilian
- O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN USA
| | - Amanda M. Nahlik
- Office of Research and Development, Center for Public Health and Environmental Assessments, Pacific Ecological Systems Division, U.S. Environmental Protection Agency, Corvallis, OR USA
| | - Sue Newman
- South Florida Water Management District, Everglades Systems Assessment Section, West Palm Beach, FL USA
| | - Jessica L. O’Connell
- Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO USA
| | - Patty Oikawa
- Department of Earth and Environmental Sciences, California State University, East Bay, Hayward, CA USA
| | - Max Post van der Burg
- U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND USA
| | - Charles A. Schutte
- Department of Environmental Science, Rowan University, Glassboro, NJ USA
| | - Changchun Song
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Camille L. Stagg
- U.S. Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA USA
| | - Jessica Turner
- Freshwater and Marine Science, University of Wisconsin-Madison, Madison, WI USA
| | - Rodrigo Vargas
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE USA
| | - Mark P. Waldrop
- U.S. Geological Survey, Geology, Minerals, Energy and Geophysics Science Center, Menlo Park, CA USA
| | - Marcus B. Wallin
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Zhaohui Aleck Wang
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA USA
| | - Eric J. Ward
- U.S. Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA USA
| | - Debra A. Willard
- U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, VA USA
| | - Stephanie Yarwood
- Environmental Science and Technology, University of Maryland, College Park, MD USA
| | - Xiaoyan Zhu
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun, China
| |
Collapse
|
2
|
Chu H, Christianson DS, Cheah YW, Pastorello G, O'Brien F, Geden J, Ngo ST, Hollowgrass R, Leibowitz K, Beekwilder NF, Sandesh M, Dengel S, Chan SW, Santos A, Delwiche K, Yi K, Buechner C, Baldocchi D, Papale D, Keenan TF, Biraud SC, Agarwal DA, Torn MS. AmeriFlux BASE data pipeline to support network growth and data sharing. Sci Data 2023; 10:614. [PMID: 37696825 PMCID: PMC10495345 DOI: 10.1038/s41597-023-02531-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/31/2023] [Indexed: 09/13/2023] Open
Abstract
AmeriFlux is a network of research sites that measure carbon, water, and energy fluxes between ecosystems and the atmosphere using the eddy covariance technique to study a variety of Earth science questions. AmeriFlux's diversity of ecosystems, instruments, and data-processing routines create challenges for data standardization, quality assurance, and sharing across the network. To address these challenges, the AmeriFlux Management Project (AMP) designed and implemented the BASE data-processing pipeline. The pipeline begins with data uploaded by the site teams, followed by the AMP team's quality assurance and quality control (QA/QC), ingestion of site metadata, and publication of the BASE data product. The semi-automated pipeline enables us to keep pace with the rapid growth of the network. As of 2022, the AmeriFlux BASE data product contains 3,130 site years of data from 444 sites, with standardized units and variable names of more than 60 common variables, representing the largest long-term data repository for flux-met data in the world. The standardized, quality-ensured data product facilitates multisite comparisons, model evaluations, and data syntheses.
Collapse
Affiliation(s)
- Housen Chu
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
| | | | - You-Wei Cheah
- Scientific Data Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Gilberto Pastorello
- Scientific Data Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Fianna O'Brien
- Scientific Data Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Joshua Geden
- Scientific Data Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Sy-Toan Ngo
- Scientific Data Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Rachel Hollowgrass
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, 94720, USA
| | | | - Norman F Beekwilder
- Department of Computer Science, University of Virginia, Charlottesville, VA, 22903, USA
| | - Megha Sandesh
- Scientific Data Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Sigrid Dengel
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Stephen W Chan
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - André Santos
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Kyle Delwiche
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Koong Yi
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Christin Buechner
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Dennis Baldocchi
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Dario Papale
- DIBAF, University of Tuscia, Viterbo, 01100, Italy
- Euro-Mediterranean Center on Climate Change CMCC IAFES, Viterbo, 01100, Italy
| | - Trevor F Keenan
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Sébastien C Biraud
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Deborah A Agarwal
- Scientific Data Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Margaret S Torn
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Energy and Resources Group, University of California Berkeley, Berkeley, CA, 94720, USA
| |
Collapse
|
3
|
Ueyama M, Knox SH, Delwiche KB, Bansal S, Riley WJ, Baldocchi D, Hirano T, McNicol G, Schafer K, Windham-Myers L, Poulter B, Jackson RB, Chang KY, Chen J, Chu H, Desai AR, Gogo S, Iwata H, Kang M, Mammarella I, Peichl M, Sonnentag O, Tuittila ES, Ryu Y, Euskirchen ES, Göckede M, Jacotot A, Nilsson MB, Sachs T. Modeled production, oxidation, and transport processes of wetland methane emissions in temperate, boreal, and Arctic regions. Glob Chang Biol 2023; 29:2313-2334. [PMID: 36630533 DOI: 10.1111/gcb.16594] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/14/2022] [Indexed: 05/28/2023]
Abstract
Wetlands are the largest natural source of methane (CH4 ) to the atmosphere. The eddy covariance method provides robust measurements of net ecosystem exchange of CH4 , but interpreting its spatiotemporal variations is challenging due to the co-occurrence of CH4 production, oxidation, and transport dynamics. Here, we estimate these three processes using a data-model fusion approach across 25 wetlands in temperate, boreal, and Arctic regions. Our data-constrained model-iPEACE-reasonably reproduced CH4 emissions at 19 of the 25 sites with normalized root mean square error of 0.59, correlation coefficient of 0.82, and normalized standard deviation of 0.87. Among the three processes, CH4 production appeared to be the most important process, followed by oxidation in explaining inter-site variations in CH4 emissions. Based on a sensitivity analysis, CH4 emissions were generally more sensitive to decreased water table than to increased gross primary productivity or soil temperature. For periods with leaf area index (LAI) of ≥20% of its annual peak, plant-mediated transport appeared to be the major pathway for CH4 transport. Contributions from ebullition and diffusion were relatively high during low LAI (<20%) periods. The lag time between CH4 production and CH4 emissions tended to be short in fen sites (3 ± 2 days) and long in bog sites (13 ± 10 days). Based on a principal component analysis, we found that parameters for CH4 production, plant-mediated transport, and diffusion through water explained 77% of the variance in the parameters across the 19 sites, highlighting the importance of these parameters for predicting wetland CH4 emissions across biomes. These processes and associated parameters for CH4 emissions among and within the wetlands provide useful insights for interpreting observed net CH4 fluxes, estimating sensitivities to biophysical variables, and modeling global CH4 fluxes.
Collapse
Grants
- JPMXD1420318865 Arctic Challenge for Sustainability II
- 1936752 Arctic Observatory Program of the National Science Foundation
- 1503912 Arctic Observatory Program of the National Science Foundation
- 1107892 Arctic Observatory Program of the National Science Foundation
- NSF DEB-1026415 Bonanza Creek Long-Term Ecological Research Program funded by the National Science Foundation
- DEB-1636476 Bonanza Creek Long-Term Ecological Research Program funded by the National Science Foundation
- California Department of Water Resources, CA Fish and Wildlife
- Canada Research Chairs, Canada Foundation for Innovation Leaders Opportunity Fund
- 3119871 ICOS-Finland
- 20K21849 JSPS KAKENHI
- 2022003640002 Ministry of Environment of Korea
- Natural Sciences and Engineering Research Council Discovery Grant Programs
- NSF LTREB 2011276 NSF Long-Term Research in Environmental Biology Program
- Reducing Uncertainties in Biogeochemical Interactions through Synthesis and Computation (RUBISCO) Scientific Focus Area, Office of Biological and Environmental Research of the U.S. Department of Energy Office of Science
- PJ014892022022 Rural Development Administration
- SNO Tourbières, CNRS-INSU
- DE-AC02-05CH11231 U.S. Department of Energy
- U.S. Geological Survey, Ecosystems Mission Area, Land Change Science Program
- 7544821 US DOE Ameriflux
- Order 224 US Geological Survey, Research Work
- VH-NG-821 Helmholtz Association of German Research Centres
- 341348 Academy of Finland project N-PERM
- 101056921 Horizon Europe project GreenFeedBack
- U.S. Geological Survey, John Wesley Powell Center for Analysis and Synthesis
- U.S. Geological Survey, Water Mission Area, Earth Systems Processes Division
Collapse
Affiliation(s)
- Masahito Ueyama
- Graduate School of Agriculture, Osaka Metropolitan University, Sakai, Japan
| | - Sara H Knox
- Department of Geography, The University of British Columbia, Vancouver, Canada
| | - Kyle B Delwiche
- Department of Environmental Science, Policy & Management, UC Berkeley, Berkeley, California, USA
| | - Sheel Bansal
- U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, North Dakota, USA
| | - William J Riley
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Dennis Baldocchi
- Department of Environmental Science, Policy & Management, UC Berkeley, Berkeley, California, USA
| | - Takashi Hirano
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Gavin McNicol
- Department of Earth and Environmental Sciences, University of Illinois Chicago, Chicago, Illinois, USA
| | - Karina Schafer
- Department of Earth and Env Science, Rutgers University Newark, Newark, New Jersey, USA
| | | | - Benjamin Poulter
- NASA Goddard Space Flight Center, Biospheric Sciences Laboratory, Greenbelt, Maryland, USA
| | - Robert B Jackson
- Department of Earth System Science, Stanford University, Stanford, California, USA
| | - Kuang-Yu Chang
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Jiquen Chen
- Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, Michigan, USA
| | - Housen Chu
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Ankur R Desai
- Dept of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Sébastien Gogo
- ECOBIO (Écosystèmes, Biodiversité, Évolution), Université Rennes 1, CNRS UMR 6553, Rennes, France
| | - Hiroki Iwata
- Department of Environmental Science, Faculty of Science, Shinshu University, Matsumoto, Japan
| | - Minseok Kang
- National Center for Agro Meteorology, Seoul, South Korea
| | - Ivan Mammarella
- Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
| | - Matthias Peichl
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Oliver Sonnentag
- Université de Montréal, Département de géographie, Université de Montréal, Montréal, Quebec, Canada
| | | | - Youngryel Ryu
- Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul, South Korea
| | - Eugénie S Euskirchen
- University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, Alaska, USA
| | - Mathias Göckede
- Max Planck Institute for Biogeochemistry, Department of Biogeochemical Signals, Jena, Germany
| | | | - Mats B Nilsson
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Torsten Sachs
- GFZ German Research Centre for Geosciences, Telegrafenberg, Potsdam, Germany
| |
Collapse
|
4
|
Yang X, Baldocchi D, Yang H. Jianwu (Jim) Tang (1970-2023). Nat Ecol Evol 2023; 7:642-643. [PMID: 36959240 DOI: 10.1038/s41559-023-02032-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Affiliation(s)
- Xi Yang
- Department of Environmental Sciences, University of Virginia, Charlottesville, VA, USA.
| | - Dennis Baldocchi
- Department of Environmental Science, Policy, and Management (ESPM), University of California, Berkeley, Berkeley, CA, USA
| | - Hualei Yang
- State Key Laboratory of Estuarine and Coastal Research, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China
| |
Collapse
|
5
|
Rey‐Sanchez C, Arias‐Ortiz A, Kasak K, Chu H, Szutu D, Verfaillie J, Baldocchi D. Detecting Hot Spots of Methane Flux Using Footprint-Weighted Flux Maps. J Geophys Res Biogeosci 2022; 127:e2022JG006977. [PMID: 36248720 PMCID: PMC9542288 DOI: 10.1029/2022jg006977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 05/28/2023]
Abstract
In this study, we propose a new technique for mapping the spatial heterogeneity in gas exchange around flux towers using flux footprint modeling and focusing on detecting hot spots of methane (CH4) flux. In the first part of the study, we used a CH4 release experiment to evaluate three common flux footprint models: the Hsieh model (Hsieh et al., 2000), the Kljun model (Kljun et al., 2015), and the K & M model (Kormann and Meixner, 2001), finding that the K & M model was the most accurate under these conditions. In the second part of the study, we introduce the Footprint-Weighted Flux Map, a new technique to map spatial heterogeneity in fluxes. Using artificial CH4 release experiments, natural tracer approaches and flux chambers we mapped the spatial flux heterogeneity, and detected and validated a hot spot of CH4 flux in a oligohaline restored marsh. Through chamber measurements during the months of April and May, we found that fluxes at the hot spot were on average as high as 6589 ± 7889 nmol m-2 s-1 whereas background flux from the open water were on average 15.2 ± 7.5 nmol m-2 s-1. This study provides a novel tool to evaluate the spatial heterogeneity of fluxes around eddy-covariance towers and creates important insights for the interpretation of hot spots of CH4 flux, paving the way for future studies aiming to understand subsurface biogeochemical processes and the microbiological conditions that lead to the occurrence of hot spots and hot moments of CH4 flux.
Collapse
Affiliation(s)
- Camilo Rey‐Sanchez
- Department of Environmental Science Policy and ManagementUniversity of California BerkeleyBerkeleyCAUSA
- Department of Marine, Earth and Atmospheric SciencesNorth Carolina State UniversityRaleighNCUSA
| | - Ariane Arias‐Ortiz
- Department of Environmental Science Policy and ManagementUniversity of California BerkeleyBerkeleyCAUSA
- Institute of Marine SciencesUniversity of CaliforniaSanta CruzCAUSA
| | - Kuno Kasak
- Department of GeographyUniversity of TartuTartuEstonia
| | - Housen Chu
- Earth & Environmental Sciences AreaLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - Daphne Szutu
- Department of Environmental Science Policy and ManagementUniversity of California BerkeleyBerkeleyCAUSA
| | - Joseph Verfaillie
- Department of Environmental Science Policy and ManagementUniversity of California BerkeleyBerkeleyCAUSA
| | - Dennis Baldocchi
- Department of Environmental Science Policy and ManagementUniversity of California BerkeleyBerkeleyCAUSA
| |
Collapse
|
6
|
Cabon A, Kannenberg SA, Arain A, Babst F, Baldocchi D, Belmecheri S, Delpierre N, Guerrieri R, Maxwell JT, McKenzie S, Meinzer FC, Moore DJP, Pappas C, Rocha AV, Szejner P, Ueyama M, Ulrich D, Vincke C, Voelker SL, Wei J, Woodruff D, Anderegg WRL. Cross-biome synthesis of source versus sink limits to tree growth. Science 2022; 376:758-761. [PMID: 35549405 DOI: 10.1126/science.abm4875] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Uncertainties surrounding tree carbon allocation to growth are a major limitation to projections of forest carbon sequestration and response to climate change. The prevalence and extent to which carbon assimilation (source) or cambial activity (sink) mediate wood production are fundamentally important and remain elusive. We quantified source-sink relations across biomes by combining eddy-covariance gross primary production with extensive on-site and regional tree ring observations. We found widespread temporal decoupling between carbon assimilation and tree growth, underpinned by contrasting climatic sensitivities of these two processes. Substantial differences in assimilation-growth decoupling between angiosperms and gymnosperms were determined, as well as stronger decoupling with canopy closure, aridity, and decreasing temperatures. Our results reveal pervasive sink control over tree growth that is likely to be increasingly prominent under global climate change.
Collapse
Affiliation(s)
- Antoine Cabon
- School of Biological Sciences, University of Utah, Salt Lake City, UT, USA
| | | | - Altaf Arain
- McMaster Centre for Climate Change, McMaster University, Hamilton, Ontario L8S 4K1, Canada.,School of Earth, Environment and Society, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Flurin Babst
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA.,Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, USA
| | - Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, USA
| | - Soumaya Belmecheri
- Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, USA
| | - Nicolas Delpierre
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, 91405 Orsay, France.,Institut Universitaire de France, 75231 Paris Cedex 05, France
| | | | - Justin T Maxwell
- Department of Geography, Indiana University, Bloomington, IN, USA
| | - Shawn McKenzie
- McMaster Centre for Climate Change, McMaster University, Hamilton, Ontario L8S 4K1, Canada.,School of Earth, Environment and Society, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | | | - David J P Moore
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | - Christoforos Pappas
- Centre d'étude de la forêt, Université du Québec à Montréal, C.P. 8888, Succursale Centre-ville, Montréal, Quebec H3C 3P8, Canada.,Département Science et Technologie, Téluq, Université du Québec, Bureau 1105, Montréal, Quebec H2S 3L5, Canada
| | - Adrian V Rocha
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Paul Szejner
- Geology Institute, National Autonomous University of Mexico, Coyoacán, CDMX, Mexico
| | - Masahito Ueyama
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai 599-8531, Japan
| | - Danielle Ulrich
- Department of Ecology, Montana State University, Bozeman, MT, USA
| | - Caroline Vincke
- Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Steven L Voelker
- College of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI, USA
| | - Jingshu Wei
- Department of Ecology, W. Szafer Institute of Botany, Polish Academy of Sciences, 31-512 Kraków, Poland
| | - David Woodruff
- USDA Forest Service, Pacific Northwest Research Station, Corvallis, OR, USA
| | | |
Collapse
|
7
|
Novick KA, Ficklin DL, Baldocchi D, Davis KJ, Ghezzehei TA, Konings AG, MacBean N, Raoult N, Scott RL, Shi Y, Sulman BN, Wood JD. Confronting the water potential information gap. Nat Geosci 2022; 15:158-164. [PMID: 35300262 PMCID: PMC8923290 DOI: 10.1038/s41561-022-00909-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Water potential directly controls the function of leaves, roots, and microbes, and gradients in water potential drive water flows throughout the soil-plant-atmosphere continuum. Notwithstanding its clear relevance for many ecosystem processes, soil water potential is rarely measured in-situ, and plant water potential observations are generally discrete, sparse, and not yet aggregated into accessible databases. These gaps limit our conceptual understanding of biophysical responses to moisture stress and inject large uncertainty into hydrologic and land surface models. Here, we outline the conceptual and predictive gains that could be made with more continuous and discoverable observations of water potential in soils and plants. We discuss improvements to sensor technologies that facilitate in situ characterization of water potential, as well as strategies for building new networks that aggregate water potential data across sites. We end by highlighting novel opportunities for linking more representative site-level observations of water potential to remotely-sensed proxies. Together, these considerations offer a roadmap for clearer links between ecohydrological processes and the water potential gradients that have the 'potential' to substantially reduce conceptual and modeling uncertainties.
Collapse
Affiliation(s)
- Kimberly A. Novick
- O’Neill School of Public and Environmental Affairs, Indiana University – Bloomington. Bloomington, IN USA
| | - Darren L. Ficklin
- Department of Geography, Indiana University – Bloomington. Bloomington, IN USA
| | - Dennis Baldocchi
- Department of Environmental Science, Policy, and Management. University of California, Berkeley. Berkeley, CA, USA
| | - Kenneth J. Davis
- Department of Meteorology and Atmospheric Science and Earth and Environmental Systems Institute, The Pennsylvania State University, University Park, PA, USA
| | - Teamrat A. Ghezzehei
- Life and Environmental Sciences Department, University of California – Merced. Merced, CA, USA
| | | | - Natasha MacBean
- Department of Geography, Indiana University – Bloomington. Bloomington, IN USA
| | - Nina Raoult
- Laboratoire des Sciences du Climat et de l’Environnement. Paris, France
| | - Russell L. Scott
- Southwest Watershed Research Center, USDA – Agricultural Research Service. Tucson, AZ, USA
| | - Yuning Shi
- Department of Plant Science. The Pennsylvania State University, University Park, PA, USA
| | - Benjamin N. Sulman
- Environmental Sciences Division, Oak Ridge National Laboratory. Oak Ridge, TN, USA
| | - Jeffrey D. Wood
- School of Natural Resources, University of Missouri, Columbia, MO, USA
| |
Collapse
|
8
|
Burchard-Levine V, Nieto H, Riaño D, Kustas WP, Migliavacca M, El-Madany TS, Nelson JA, Andreu A, Carrara A, Beringer J, Baldocchi D, Martín MP. A remote sensing-based three-source energy balance model to improve global estimations of evapotranspiration in semi-arid tree-grass ecosystems. Glob Chang Biol 2022; 28:1493-1515. [PMID: 34799950 DOI: 10.1111/gcb.16002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
It is well documented that energy balance and other remote sensing-based evapotranspiration (ET) models face greater uncertainty over water-limited tree-grass ecosystems (TGEs), representing nearly 1/6th of the global land surface. Their dual vegetation strata, the grass-dominated understory and tree-dominated overstory, make for distinct structural, physiological and phenological characteristics, which challenge models compared to more homogeneous and energy-limited ecosystems. Along with this, the contribution of grasses and trees to total transpiration (T), along with their different climatic drivers, is still largely unknown nor quantified in TGEs. This study proposes a thermal-based three-source energy balance (3SEB) model, accommodating an additional vegetation source within the well-known two-source energy balance (TSEB) model. The model was implemented at both tower and continental scales using eddy-covariance (EC) TGE sites, with variable tree canopy cover and rainfall (P) regimes and Meteosat Second Generation (MSG) images. 3SEB robustly simulated latent heat (LE) and related energy fluxes in all sites (Tower: LE RMSD ~60 W/m2 ; MSG: LE RMSD ~90 W/m2 ), improving over both TSEB and seasonally changing TSEB (TSEB-2S) models. In addition, 3SEB inherently partitions water fluxes between the tree, grass and soil sources. The modelled T correlated well with EC T estimates (r > .76), derived from a machine learning ET partitioning method. The T/ET was found positively related to both P and leaf area index, especially compared to the decomposed grass understory T/ET. However, trees and grasses had contrasting relations with respect to monthly P. These results demonstrate the importance in decomposing total ET into the different vegetation sources, as they have distinct climatic drivers, and hence, different relations to seasonal water availability. These promising results improved ET and energy flux estimations over complex TGEs, which may contribute to enhance global drought monitoring and understanding, and their responses to climate change feedbacks.
Collapse
Affiliation(s)
- Vicente Burchard-Levine
- Environmental Remote Sensing and Spectroscopy Laboratory (SpecLab), Spanish National Research Council (CSIC), Madrid, Spain
| | - Héctor Nieto
- Complutum Tecnologías de la Información Geográfica S.L. (COMPLUTIG), Alcalá de Henares, Spain
| | - David Riaño
- Environmental Remote Sensing and Spectroscopy Laboratory (SpecLab), Spanish National Research Council (CSIC), Madrid, Spain
- Center for Spatial Technologies and Remote Sensing (CSTARS), John Muir Institute of the Environment, University of California Davis, Davis, California, USA
| | - Wiliam P Kustas
- Hydrology and Remote Sensing Laboratory, U.S. Department of Agriculture, Agriculture Research Service, Beltsville, Maryland, USA
| | - Mirco Migliavacca
- Department Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Tarek S El-Madany
- Department Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Jacob A Nelson
- Department Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Ana Andreu
- IFAPA - Consejería de Agricultura, Pesca y Desarrollo Rural, Córdoba, Spain
| | - Arnaud Carrara
- Fundación Centro de Estudios Ambientales del Mediterráneo (CEAM), Valencia, Spain
| | - Jason Beringer
- School of Geography and Environmental Science, Monash University, Australia
| | - Dennis Baldocchi
- Ecosystem Sciences Division, Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, California, USA
| | - M Pilar Martín
- Environmental Remote Sensing and Spectroscopy Laboratory (SpecLab), Spanish National Research Council (CSIC), Madrid, Spain
| |
Collapse
|
9
|
Knox SH, Bansal S, McNicol G, Schafer K, Sturtevant C, Ueyama M, Valach AC, Baldocchi D, Delwiche K, Desai AR, Euskirchen E, Liu J, Lohila A, Malhotra A, Melling L, Riley W, Runkle BRK, Turner J, Vargas R, Zhu Q, Alto T, Fluet-Chouinard E, Goeckede M, Melton JR, Sonnentag O, Vesala T, Ward E, Zhang Z, Feron S, Ouyang Z, Alekseychik P, Aurela M, Bohrer G, Campbell DI, Chen J, Chu H, Dalmagro HJ, Goodrich JP, Gottschalk P, Hirano T, Iwata H, Jurasinski G, Kang M, Koebsch F, Mammarella I, Nilsson MB, Ono K, Peichl M, Peltola O, Ryu Y, Sachs T, Sakabe A, Sparks JP, Tuittila ES, Vourlitis GL, Wong GX, Windham-Myers L, Poulter B, Jackson RB. Identifying dominant environmental predictors of freshwater wetland methane fluxes across diurnal to seasonal time scales. Glob Chang Biol 2021; 27:3582-3604. [PMID: 33914985 DOI: 10.1111/gcb.15661] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
While wetlands are the largest natural source of methane (CH4 ) to the atmosphere, they represent a large source of uncertainty in the global CH4 budget due to the complex biogeochemical controls on CH4 dynamics. Here we present, to our knowledge, the first multi-site synthesis of how predictors of CH4 fluxes (FCH4) in freshwater wetlands vary across wetland types at diel, multiday (synoptic), and seasonal time scales. We used several statistical approaches (correlation analysis, generalized additive modeling, mutual information, and random forests) in a wavelet-based multi-resolution framework to assess the importance of environmental predictors, nonlinearities and lags on FCH4 across 23 eddy covariance sites. Seasonally, soil and air temperature were dominant predictors of FCH4 at sites with smaller seasonal variation in water table depth (WTD). In contrast, WTD was the dominant predictor for wetlands with smaller variations in temperature (e.g., seasonal tropical/subtropical wetlands). Changes in seasonal FCH4 lagged fluctuations in WTD by ~17 ± 11 days, and lagged air and soil temperature by median values of 8 ± 16 and 5 ± 15 days, respectively. Temperature and WTD were also dominant predictors at the multiday scale. Atmospheric pressure (PA) was another important multiday scale predictor for peat-dominated sites, with drops in PA coinciding with synchronous releases of CH4 . At the diel scale, synchronous relationships with latent heat flux and vapor pressure deficit suggest that physical processes controlling evaporation and boundary layer mixing exert similar controls on CH4 volatilization, and suggest the influence of pressurized ventilation in aerenchymatous vegetation. In addition, 1- to 4-h lagged relationships with ecosystem photosynthesis indicate recent carbon substrates, such as root exudates, may also control FCH4. By addressing issues of scale, asynchrony, and nonlinearity, this work improves understanding of the predictors and timing of wetland FCH4 that can inform future studies and models, and help constrain wetland CH4 emissions.
Collapse
Affiliation(s)
- Sara H Knox
- Department of Geography, The University of British Columbia, Vancouver, BC, Canada
| | - Sheel Bansal
- Northern Prairie Wildlife Research Center, U.S. Geological Survey, Jamestown, ND, USA
| | - Gavin McNicol
- Department of Earth System Science, Stanford University, Stanford, CA, USA
| | - Karina Schafer
- Department of Earth and Environmental Science, Rutgers University Newark, New Brunswick, NJ, USA
| | - Cove Sturtevant
- National Ecological Observatory Network, Battelle, Boulder, CO, USA
| | - Masahito Ueyama
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Japan
| | - Alex C Valach
- Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, USA
| | - Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, USA
| | - Kyle Delwiche
- Department of Earth System Science, Stanford University, Stanford, CA, USA
| | - Ankur R Desai
- Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Eugenie Euskirchen
- Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, USA
| | - Jinxun Liu
- Western Geographic Science Center, U.S. Geological Survey, Moffett Field, CA, USA
| | - Annalea Lohila
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
- Climate System Research, Finnish Meteorological Institute, Helsinki, Finland
| | - Avni Malhotra
- Department of Earth System Science, Stanford University, Stanford, CA, USA
| | - Lulie Melling
- Sarawak Tropical Peat Research Institute, Sarawak, Malaysia
| | - William Riley
- Earth and Environmental Sciences Area, Lawrence Berkeley National Lab, Berkeley, CA, USA
| | - Benjamin R K Runkle
- Department of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR, USA
| | - Jessica Turner
- Freshwater and Marine Science, University of Wisconsin-Madison, Madison, WI, USA
| | - Rodrigo Vargas
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA
| | - Qing Zhu
- Earth and Environmental Sciences Area, Lawrence Berkeley National Lab, Berkeley, CA, USA
| | - Tuula Alto
- Climate System Research, Finnish Meteorological Institute, Helsinki, Finland
| | | | - Mathias Goeckede
- Department of Biogeochemical Signals, Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Joe R Melton
- Climate Research Division, Environment and Climate Change Canada, Victoria, BC, Canada
| | - Oliver Sonnentag
- Département de Géographie, Université de Montréal, Montréal, QC, Canada
| | - Timo Vesala
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
- Yugra State University, Khanty-Mansiysk, Russia
| | - Eric Ward
- Wetland and Aquatic Research Center, U.S. Geological Survey, Lafayette, LA, USA
| | - Zhen Zhang
- Department of Geographical Sciences, University of Maryland, College Park, MD, USA
| | - Sarah Feron
- Department of Earth System Science, Stanford University, Stanford, CA, USA
- Department of Physics, University of Santiago, Santiago de Chile, Chile
| | - Zutao Ouyang
- Department of Earth System Science, Stanford University, Stanford, CA, USA
| | | | - Mika Aurela
- Climate System Research, Finnish Meteorological Institute, Helsinki, Finland
| | - Gil Bohrer
- Department of Civil, Environmental & Geodetic Engineering, Ohio State University, Columbus, OH, USA
| | | | - Jiquan Chen
- Department of Geography, Environment, and Spatial Sciences, & Center for Global Change and Earth Observations, Michigan State University, East Lansing, MI, USA
| | - Housen Chu
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, USA
| | | | | | - Pia Gottschalk
- GFZ German Research Centre for Geosciences, Potsdam, Germany
| | - Takashi Hirano
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Hiroki Iwata
- Department of Environmental Science, Faculty of Science, Shinshu University, Matsumoto, Japan
| | | | - Minseok Kang
- National Center for Agro Meteorology, Seoul, South Korea
| | | | - Ivan Mammarella
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Mats B Nilsson
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Keisuke Ono
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Matthias Peichl
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Olli Peltola
- Climate System Research, Finnish Meteorological Institute, Helsinki, Finland
| | - Youngryel Ryu
- Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul, South Korea
| | - Torsten Sachs
- GFZ German Research Centre for Geosciences, Potsdam, Germany
| | | | - Jed P Sparks
- Department of Ecology and Evolutionary Biology, Cornell, Ithaca, NY, USA
| | | | | | - Guan X Wong
- Sarawak Tropical Peat Research Institute, Sarawak, Malaysia
| | | | - Benjamin Poulter
- Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA
| | - Robert B Jackson
- Department of Earth System Science, Stanford University, Stanford, CA, USA
- Woods Institute for the Environment, Stanford University, Stanford, CA, USA
- Precourt Institute for Energy, Stanford University, Stanford, CA, USA
| |
Collapse
|
10
|
Chang KY, Riley WJ, Knox SH, Jackson RB, McNicol G, Poulter B, Aurela M, Baldocchi D, Bansal S, Bohrer G, Campbell DI, Cescatti A, Chu H, Delwiche KB, Desai AR, Euskirchen E, Friborg T, Goeckede M, Helbig M, Hemes KS, Hirano T, Iwata H, Kang M, Keenan T, Krauss KW, Lohila A, Mammarella I, Mitra B, Miyata A, Nilsson MB, Noormets A, Oechel WC, Papale D, Peichl M, Reba ML, Rinne J, Runkle BRK, Ryu Y, Sachs T, Schäfer KVR, Schmid HP, Shurpali N, Sonnentag O, Tang ACI, Torn MS, Trotta C, Tuittila ES, Ueyama M, Vargas R, Vesala T, Windham-Myers L, Zhang Z, Zona D. Substantial hysteresis in emergent temperature sensitivity of global wetland CH 4 emissions. Nat Commun 2021; 12:2266. [PMID: 33859182 PMCID: PMC8050324 DOI: 10.1038/s41467-021-22452-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 03/15/2021] [Indexed: 11/21/2022] Open
Abstract
Wetland methane (CH4) emissions ([Formula: see text]) are important in global carbon budgets and climate change assessments. Currently, [Formula: see text] projections rely on prescribed static temperature sensitivity that varies among biogeochemical models. Meta-analyses have proposed a consistent [Formula: see text] temperature dependence across spatial scales for use in models; however, site-level studies demonstrate that [Formula: see text] are often controlled by factors beyond temperature. Here, we evaluate the relationship between [Formula: see text] and temperature using observations from the FLUXNET-CH4 database. Measurements collected across the globe show substantial seasonal hysteresis between [Formula: see text] and temperature, suggesting larger [Formula: see text] sensitivity to temperature later in the frost-free season (about 77% of site-years). Results derived from a machine-learning model and several regression models highlight the importance of representing the large spatial and temporal variability within site-years and ecosystem types. Mechanistic advancements in biogeochemical model parameterization and detailed measurements in factors modulating CH4 production are thus needed to improve global CH4 budget assessments.
Collapse
Affiliation(s)
- Kuang-Yu Chang
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - William J Riley
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - Sara H Knox
- Department of Geography, The University of British Columbia, Vancouver, BC, Canada
| | - Robert B Jackson
- Department of Earth System Science, Stanford University, Stanford, CA, USA
- Woods Institute for the Environment and Precourt Institute for Energy, Stanford, CA, USA
| | - Gavin McNicol
- Department of Earth System Science, Stanford University, Stanford, CA, USA
| | - Benjamin Poulter
- NASA Goddard Space Flight Center, Biospheric Sciences Laboratory, Greenbelt, MD, USA
| | - Mika Aurela
- Finnish Meteorological Institute, Helsinki, Finland
| | - Dennis Baldocchi
- Department of Environmental Science, Policy & Management, UC Berkeley, Berkeley, CA, USA
| | - Sheel Bansal
- U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND, USA
| | - Gil Bohrer
- Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH, USA
| | | | | | - Housen Chu
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Kyle B Delwiche
- Department of Earth System Science, Stanford University, Stanford, CA, USA
| | - Ankur R Desai
- Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Eugenie Euskirchen
- University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, USA
| | - Thomas Friborg
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen K, Denmark
| | | | - Manuel Helbig
- School of Geography and Earth Sciences, McMaster University, Hamilton, ON, Canada
- Département de Géographie & Centre d'Études Nordiques, Montréal, QC, Canada
| | - Kyle S Hemes
- Woods Institute for the Environment, Stanford University, Stanford, CA, USA
| | - Takashi Hirano
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Hiroki Iwata
- Department of Environmental Science, Faculty of Science, Shinshu University, Matsumoto, Japan
| | - Minseok Kang
- National Center for AgroMeteorology, Seoul, South Korea
| | - Trevor Keenan
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Environmental Science, Policy & Management, UC Berkeley, Berkeley, CA, USA
| | - Ken W Krauss
- U.S. Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA, USA
| | - Annalea Lohila
- Finnish Meteorological Institute, Helsinki, Finland
- Institute for Atmosphere and Earth System Research/Physics, Faculty of Science, University of Helsink, Helsinki, Finland
| | - Ivan Mammarella
- Institute for Atmosphere and Earth System Research/Physics, Faculty of Science, University of Helsink, Helsinki, Finland
| | - Bhaskar Mitra
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX, USA
| | - Akira Miyata
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Mats B Nilsson
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Asko Noormets
- Department of Ecosystem Science and Management, Texas A&M University, College Station, TX, USA
| | - Walter C Oechel
- Department of Biology, San Diego State University, San Diego, CA, USA
| | - Dario Papale
- DIBAF, Università degli Studi della Tuscia, Largo dell'Università, Viterbo, Italy
| | - Matthias Peichl
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Michele L Reba
- United States Department of Agriculture, Agricultural Research Service, Delta Water Management Research Service, Jonesboro, AR, USA
| | - Janne Rinne
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden
| | - Benjamin R K Runkle
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR, USA
| | - Youngryel Ryu
- Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul, South Korea
| | - Torsten Sachs
- GFZ German Research Centre for Geoscience, Potsdam, Germany
| | - Karina V R Schäfer
- Department of Biological Sciences, Rutgers University Newark, Newark, NJ, USA
| | - Hans Peter Schmid
- Institute of Meteorology and Climatology - Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen, Germany
| | - Narasinha Shurpali
- Production Systems, Natural Resources Institute Finland, Maaninka, Finland
| | - Oliver Sonnentag
- Département de Géographie & Centre d'Études Nordiques, Montréal, QC, Canada
| | | | - Margaret S Torn
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Carlo Trotta
- DIBAF, Università degli Studi della Tuscia, Largo dell'Università, Viterbo, Italy
- Euro-Mediterranean Center on Climate Change, CMCC IAFES, Viterbo, Italy
| | | | - Masahito Ueyama
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - Rodrigo Vargas
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA
| | - Timo Vesala
- Institute for Atmosphere and Earth System Research/Physics, Faculty of Science, University of Helsink, Helsinki, Finland
- Institute for Atmosphere and Earth System Research, Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | | | - Zhen Zhang
- Department of Geographical Sciences, University of Maryland, College Park, MD, USA
| | - Donatella Zona
- Department of Biology, San Diego State University, San Diego, CA, USA
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
| |
Collapse
|
11
|
Pastorello G, Trotta C, Canfora E, Chu H, Christianson D, Cheah YW, Poindexter C, Chen J, Elbashandy A, Humphrey M, Isaac P, Polidori D, Reichstein M, Ribeca A, van Ingen C, Vuichard N, Zhang L, Amiro B, Ammann C, Arain MA, Ardö J, Arkebauer T, Arndt SK, Arriga N, Aubinet M, Aurela M, Baldocchi D, Barr A, Beamesderfer E, Marchesini LB, Bergeron O, Beringer J, Bernhofer C, Berveiller D, Billesbach D, Black TA, Blanken PD, Bohrer G, Boike J, Bolstad PV, Bonal D, Bonnefond JM, Bowling DR, Bracho R, Brodeur J, Brümmer C, Buchmann N, Burban B, Burns SP, Buysse P, Cale P, Cavagna M, Cellier P, Chen S, Chini I, Christensen TR, Cleverly J, Collalti A, Consalvo C, Cook BD, Cook D, Coursolle C, Cremonese E, Curtis PS, D'Andrea E, da Rocha H, Dai X, Davis KJ, De Cinti B, de Grandcourt A, De Ligne A, De Oliveira RC, Delpierre N, Desai AR, Di Bella CM, di Tommasi P, Dolman H, Domingo F, Dong G, Dore S, Duce P, Dufrêne E, Dunn A, Dušek J, Eamus D, Eichelmann U, ElKhidir HAM, Eugster W, Ewenz CM, Ewers B, Famulari D, Fares S, Feigenwinter I, Feitz A, Fensholt R, Filippa G, Fischer M, Frank J, Galvagno M, Gharun M, Gianelle D, Gielen B, Gioli B, Gitelson A, Goded I, Goeckede M, Goldstein AH, Gough CM, Goulden ML, Graf A, Griebel A, Gruening C, Grünwald T, Hammerle A, Han S, Han X, Hansen BU, Hanson C, Hatakka J, He Y, Hehn M, Heinesch B, Hinko-Najera N, Hörtnagl L, Hutley L, Ibrom A, Ikawa H, Jackowicz-Korczynski M, Janouš D, Jans W, Jassal R, Jiang S, Kato T, Khomik M, Klatt J, Knohl A, Knox S, Kobayashi H, Koerber G, Kolle O, Kosugi Y, Kotani A, Kowalski A, Kruijt B, Kurbatova J, Kutsch WL, Kwon H, Launiainen S, Laurila T, Law B, Leuning R, Li Y, Liddell M, Limousin JM, Lion M, Liska AJ, Lohila A, López-Ballesteros A, López-Blanco E, Loubet B, Loustau D, Lucas-Moffat A, Lüers J, Ma S, Macfarlane C, Magliulo V, Maier R, Mammarella I, Manca G, Marcolla B, Margolis HA, Marras S, Massman W, Mastepanov M, Matamala R, Matthes JH, Mazzenga F, McCaughey H, McHugh I, McMillan AMS, Merbold L, Meyer W, Meyers T, Miller SD, Minerbi S, Moderow U, Monson RK, Montagnani L, Moore CE, Moors E, Moreaux V, Moureaux C, Munger JW, Nakai T, Neirynck J, Nesic Z, Nicolini G, Noormets A, Northwood M, Nosetto M, Nouvellon Y, Novick K, Oechel W, Olesen JE, Ourcival JM, Papuga SA, Parmentier FJ, Paul-Limoges E, Pavelka M, Peichl M, Pendall E, Phillips RP, Pilegaard K, Pirk N, Posse G, Powell T, Prasse H, Prober SM, Rambal S, Rannik Ü, Raz-Yaseef N, Rebmann C, Reed D, de Dios VR, Restrepo-Coupe N, Reverter BR, Roland M, Sabbatini S, Sachs T, Saleska SR, Sánchez-Cañete EP, Sanchez-Mejia ZM, Schmid HP, Schmidt M, Schneider K, Schrader F, Schroder I, Scott RL, Sedlák P, Serrano-Ortíz P, Shao C, Shi P, Shironya I, Siebicke L, Šigut L, Silberstein R, Sirca C, Spano D, Steinbrecher R, Stevens RM, Sturtevant C, Suyker A, Tagesson T, Takanashi S, Tang Y, Tapper N, Thom J, Tomassucci M, Tuovinen JP, Urbanski S, Valentini R, van der Molen M, van Gorsel E, van Huissteden K, Varlagin A, Verfaillie J, Vesala T, Vincke C, Vitale D, Vygodskaya N, Walker JP, Walter-Shea E, Wang H, Weber R, Westermann S, Wille C, Wofsy S, Wohlfahrt G, Wolf S, Woodgate W, Li Y, Zampedri R, Zhang J, Zhou G, Zona D, Agarwal D, Biraud S, Torn M, Papale D. Author Correction: The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data. Sci Data 2021; 8:72. [PMID: 33633116 PMCID: PMC7907353 DOI: 10.1038/s41597-021-00851-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Gilberto Pastorello
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
| | - Carlo Trotta
- DIBAF, University of Tuscia, Viterbo, 01100, Italy
| | - Eleonora Canfora
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Housen Chu
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Danielle Christianson
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - You-Wei Cheah
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Cristina Poindexter
- Department of Civil Engineering, California State University, Sacramento, CA, 95819, USA
| | - Jiquan Chen
- Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, MI, 48823, USA
| | - Abdelrahman Elbashandy
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Marty Humphrey
- Department of Computer Science, University of Virginia, Charlottesville, VA, 22904, USA
| | - Peter Isaac
- TERN Ecosystem Processes, Menzies Creek, VIC3159, Australia
| | - Diego Polidori
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | | | - Alessio Ribeca
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Catharine van Ingen
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Nicolas Vuichard
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CEA CNRS, UVSQ UPSACLAY, Gif sur Yvette, 91190, France
| | - Leiming Zhang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Brian Amiro
- Department of Soil Science, University of Manitoba, Winnipeg, MB, R3T2N2, Canada
| | - Christof Ammann
- Department of Agroecology and Environment, Agroscope Research Institute, Zürich, 8046, Switzerland
| | - M Altaf Arain
- School of Geography and Earth Sciences, McMaster University, L8S4K1, Hamilton, ON, Canada
| | - Jonas Ardö
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden
| | - Timothy Arkebauer
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Stefan K Arndt
- School of Ecosystem and Forest Sciences, The University of Melbourne, Richmond, VIC3121, Australia
| | - Nicola Arriga
- Department of Biology, Research Group PLECO, University of Antwerp, Antwerp, 2610, Belgium.,Joint Research Centre, European Commission, Ispra, 21027, Italy
| | - Marc Aubinet
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | - Mika Aurela
- Finnish Meteorological Institute, Helsinki, 00560, Finland
| | - Dennis Baldocchi
- ESPM, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Alan Barr
- Global Institute for Water Security, University of Saskatchewan, Saskatoon, SK, S7N3H5, Canada.,Climate Research Division, Environment and Climate Change Canada, Saskatoon, SK, S7N3H5, Canada
| | - Eric Beamesderfer
- School of Geography and Earth Sciences, McMaster University, L8S4K1, Hamilton, ON, Canada
| | - Luca Belelli Marchesini
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy.,Department of Landscape Design and Sustainable Ecosystems, Agrarian-Technological Institute, RUDN University, Moscow, 117198, Russia
| | - Onil Bergeron
- Direction du marché du carbone, Ministère du Développement durable de l'Environnement et de la Lutte contre les changements climatiques, Québec, QC, G1R5V7, Canada
| | - Jason Beringer
- School of Agriculture and Environment, University of Western Australia, Crawley, 6009, Australia
| | - Christian Bernhofer
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Daniel Berveiller
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, 91405, France
| | - Dave Billesbach
- Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Thomas Andrew Black
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T1Z4, Canada
| | - Peter D Blanken
- Department of Geography, University of Colorado, Boulder, CO, 80309, USA
| | - Gil Bohrer
- Department of Civil, Environmental & Geodetic Engineering, Ohio State University, Columbus, OH, 43210, USA
| | - Julia Boike
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, 14482, Germany.,Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Paul V Bolstad
- Forest Resources, University of Minnesota, St Paul, MN, 55108, USA
| | - Damien Bonal
- Université de Lorraine, AgroParisTech, INRAE, UMR Silva, Nancy, 54000, France
| | | | - David R Bowling
- School of Biological Sciences, University of Utah, Salt Lake City, UT, 84112, USA
| | - Rosvel Bracho
- School of Forest Resources and Conservation, University of Florida, Gainesville, FL, 32611, USA
| | - Jason Brodeur
- McMaster University Library, McMaster University, Hamilton, ON, L8S4L6, Canada
| | - Christian Brümmer
- Thünen Institute of Climate-Smart Agriculture, Federal Research Institute of Rural Areas, Forestry and Fisheries, Braunschweig, 38116, Germany
| | - Nina Buchmann
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | | | - Sean P Burns
- Department of Geography, University of Colorado, Boulder, CO, 80309, USA.,Mesoscale and Microscale Meteorology Laboratory, National Center for Atmospheric Research, Boulder, CO, 80301, USA
| | - Pauline Buysse
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Thiverval-Grignon, 78850, France
| | - Peter Cale
- Australian Landscape Trust, Renmark, SA5341, Australia
| | - Mauro Cavagna
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Pierre Cellier
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Thiverval-Grignon, 78850, France
| | - Shiping Chen
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Isaac Chini
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Torben R Christensen
- Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark
| | - James Cleverly
- School of Life Sciences, University of Technology Sydney, Sydney, 2007, Australia.,Terrestrial Ecosystem Research Network TERN, University of Technology, Sydney, 2007, Australia
| | - Alessio Collalti
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Claudia Consalvo
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Porano, 05010, Italy
| | - Bruce D Cook
- Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA
| | - David Cook
- Environmental Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Carole Coursolle
- Canadian Forest Service, Natural Resources Canada, Québec, QC, G1V4C7, Canada.,Centre d'étude de la forêt, Faculté de foresterie, de géographie et de géomatique, Université Laval, Québec, QC, G1V0A6, Canada
| | - Edoardo Cremonese
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Saint Christophe, 11020, Italy
| | - Peter S Curtis
- Department of Evolution, Ecology, and Organismal Biology, Ohio State University, Columbus, OH, 43210, USA
| | - Ettore D'Andrea
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Humberto da Rocha
- Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo, SP, 01000-000, Brazil
| | - Xiaoqin Dai
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Kenneth J Davis
- Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Bruno De Cinti
- Institute of Research on Terrestrial Ecosystems, National Research Council of Italy, Montelibretti, 00010, Italy
| | | | - Anne De Ligne
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | | | - Nicolas Delpierre
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, 91405, France
| | - Ankur R Desai
- Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Carlos Marcelo Di Bella
- Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, UBA, Buenos Aires, 1417, Argentina
| | - Paul di Tommasi
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Han Dolman
- Department of Earth Sciences, Vrije Universiteit Amsterdam, Amsterdam, 1081 HV, The Netherlands
| | - Francisco Domingo
- Desertification and Geoecology Department, Experimental Station of Arid Zones, CSIC, Almería, 04120, Spain
| | - Gang Dong
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | | | - Pierpaolo Duce
- Institute of BioEconomy, National Research Council of Italy, Sassari, 07100, Italy
| | - Eric Dufrêne
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, 91405, France
| | - Allison Dunn
- Department of Earth, Environment, and Physics, Worcester State University, Worcester, MA, 01602, USA
| | - Jiří Dušek
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Derek Eamus
- School of Life Sciences, University of Technology Sydney, Sydney, 2007, Australia
| | - Uwe Eichelmann
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | | | - Werner Eugster
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Cacilia M Ewenz
- Airborne Research Australia, TERN Ecosystem Processes Central Node, Parafield, 5106, Australia
| | - Brent Ewers
- Department of Botany, Program in Ecology, University of Wyoming, 1000 E. Univ. Ave, Laramie, WY, 82071, USA
| | - Daniela Famulari
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Silvano Fares
- Institute of BioEconomy, National Research Council of Italy, Rome, 00100, Italy.,Research Centre for Forestry and Wood, Council for Agricultural Research and Economics, Rome, 00166, Italy
| | - Iris Feigenwinter
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | | | - Rasmus Fensholt
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, 1350, Denmark
| | - Gianluca Filippa
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Saint Christophe, 11020, Italy
| | - Marc Fischer
- Energy Analysis & Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - John Frank
- USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO, 80526, USA
| | - Marta Galvagno
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Saint Christophe, 11020, Italy
| | - Mana Gharun
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Damiano Gianelle
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Bert Gielen
- Department of Biology, Research Group PLECO, University of Antwerp, Antwerp, 2610, Belgium
| | - Beniamino Gioli
- Institute of BioEconomy, National Research Council of Italy, Firenze, 50145, Italy
| | - Anatoly Gitelson
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Ignacio Goded
- Joint Research Centre, European Commission, Ispra, 21027, Italy
| | | | | | - Christopher M Gough
- Department of Biology, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Michael L Goulden
- Department of Earth System Science, University of California, Irvine, CA, 92697, USA
| | - Alexander Graf
- Agrosphere (IBG3), Forschungszentrum Jülich, Jülich, 52428, Germany
| | - Anne Griebel
- School of Ecosystem and Forest Sciences, The University of Melbourne, Richmond, VIC3121, Australia
| | | | - Thomas Grünwald
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Albin Hammerle
- Department of Ecology, University of Innsbruck, Innsbruck, 6020, Austria
| | - Shijie Han
- International Joint Research Laboratory for Global Change Ecology, School of Life Sciences, Henan University, Kaifeng, 450000, China.,Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Xingguo Han
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Birger Ulf Hansen
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, 1350, Denmark
| | - Chad Hanson
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97333, USA
| | - Juha Hatakka
- Finnish Meteorological Institute, Helsinki, 00560, Finland
| | - Yongtao He
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Markus Hehn
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Bernard Heinesch
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | - Nina Hinko-Najera
- School of Ecosystem and Forest Sciences, The University of Melbourne, Creswick, VIC3363, Australia
| | - Lukas Hörtnagl
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Lindsay Hutley
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, 0909, Australia
| | - Andreas Ibrom
- Department of Environmental Engineering, Technical University of Denmark (DTU), Kongens Lyngby, 2800, Denmark
| | - Hiroki Ikawa
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8604, Japan
| | - Marcin Jackowicz-Korczynski
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark
| | - Dalibor Janouš
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Wilma Jans
- Wageningen Environmental Research, Wageningen University and Research, Wageningen, 6708PB, The Netherlands
| | - Rachhpal Jassal
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T1Z4, Canada
| | - Shicheng Jiang
- Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Tomomichi Kato
- Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan.,GI-Core, Hokkaido University, Sapporo, 060-0808, Japan
| | - Myroslava Khomik
- School of Geography and Earth Sciences, McMaster University, L8S4K1, Hamilton, ON, Canada.,Geography and Environmental Management, Waterloo, ON, N2L3G1, Canada
| | - Janina Klatt
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, 82467, Germany
| | - Alexander Knohl
- Bioclimatology, University of Goettingen, Goettingen, 37077, Germany.,Centre of Biodiversity and Sustainable Land Use (CBL), University of Goettingen, Goettingen, 37077, Germany
| | - Sara Knox
- Department of Geography, The University of British Columbia, Vancouver, BC, V6T1Z2, Canada
| | - Hideki Kobayashi
- Research Institute for Global Change, Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology, Yokoama, 236-0001, Japan
| | - Georgia Koerber
- Biological Sciences, University of Adelaide, Adelaide, SA5064, Australia
| | - Olaf Kolle
- Max Planck Institute for Biogeochemistry, Jena, 03641, Germany
| | - Yoshiko Kosugi
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Ayumi Kotani
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 4648601, Japan
| | - Andrew Kowalski
- Department of Applied Physics, University of Granada, Granada, 18071, Spain
| | - Bart Kruijt
- Water systems and Global Change group, Wageningen University, Wageningen, 6500, The Netherlands
| | - Julia Kurbatova
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Werner L Kutsch
- Head Office, Integrated Carbon Observation System (ICOS ERIC), Helsinki, 00560, Finland
| | - Hyojung Kwon
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97333, USA
| | | | - Tuomas Laurila
- Finnish Meteorological Institute, Helsinki, 00560, Finland
| | - Bev Law
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97333, USA
| | | | - Yingnian Li
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China
| | - Michael Liddell
- Centre for Tropical Environmental Sustainability Studies, James Cook University, Cairns, 4878, Australia
| | | | - Marryanna Lion
- Forestry and Environment Division, Forest Research Institute Malaysia (FRIM), Kepong, 52109, Malaysia
| | - Adam J Liska
- Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Annalea Lohila
- Finnish Meteorological Institute, Helsinki, 00560, Finland.,Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Ana López-Ballesteros
- Department of Botany, School of Natural Sciences, Trinity College Dublin, Dublin, D02PN40, Ireland
| | - Efrén López-Blanco
- Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark
| | - Benjamin Loubet
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Thiverval-Grignon, 78850, France
| | - Denis Loustau
- ISPA, Bordeaux Sciences Agro, INRAE, Villenave d'Ornon, 33140, France
| | - Antje Lucas-Moffat
- Thünen Institute of Climate-Smart Agriculture, Federal Research Institute of Rural Areas, Forestry and Fisheries, Braunschweig, 38116, Germany.,German Meteorological Service (DWD), Centre for Agrometeorological Research, Braunschweig, 38116, Germany
| | - Johannes Lüers
- Micrometeorology, University of Bayreuth, Bayreuth, 95440, Germany.,Bayreuth Center of Ecology and Environmental Research, 95448, Bayreuth, Germany
| | - Siyan Ma
- ESPM, University of California Berkeley, Berkeley, CA, 94720, USA
| | | | - Vincenzo Magliulo
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Regine Maier
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Ivan Mammarella
- Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Giovanni Manca
- Joint Research Centre, European Commission, Ispra, 21027, Italy
| | - Barbara Marcolla
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Hank A Margolis
- Centre d'étude de la forêt, Faculté de foresterie, de géographie et de géomatique, Université Laval, Québec, QC, G1V0A6, Canada
| | - Serena Marras
- Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.,Department of Agriculture, University of Sassari, Sassari, 07100, Italy
| | - William Massman
- USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO, 80526, USA
| | - Mikhail Mastepanov
- Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark.,Oulanka research station, University of Oulu, Kuusamo, 93900, Finland
| | - Roser Matamala
- Environmental Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | | | - Francesco Mazzenga
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Monterotondo Scalo, 00015, Italy
| | - Harry McCaughey
- Department of Geography and Planning, Queen's University, Kingston, ON, K7L3N6, Canada
| | - Ian McHugh
- School of Ecosystem and Forest Sciences, The University of Melbourne, Richmond, VIC3121, Australia
| | - Andrew M S McMillan
- Environmental Analytics NZ, Ltd. Raumati South, Paraparaumu, 5032, New Zealand
| | - Lutz Merbold
- Mazingira Centre, International Livestock Research Institute (ILRI), Nairobi, 00100, Kenya
| | - Wayne Meyer
- Biological Sciences, University of Adelaide, Adelaide, SA5064, Australia
| | - Tilden Meyers
- NOAA/OAR/Air Resources Laboratory, 325 Broadway, Boulder, CO, 80303, USA
| | - Scott D Miller
- Atmospheric Sciences Research Center, State University of New York at Albany, Albany, NY, 12203, USA
| | | | - Uta Moderow
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Russell K Monson
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Leonardo Montagnani
- Forest Department of South Tyrol, Bolzano, 39100, Italy.,Faculty of Science and Technology, Free University of Bolzano, Bolzano, 39100, Italy
| | - Caitlin E Moore
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Eddy Moors
- IHE Delft, Delft, 2611, The Netherlands.,Faculty of Science, VU Amsterdam, Amsterdam, 1081, The Netherlands
| | - Virginie Moreaux
- ISPA, Bordeaux Sciences Agro, INRAE, Villenave d'Ornon, 33140, France.,University Grenoble Alpes, IRD, CNRS, IGE, Grenoble, 38000, France
| | - Christine Moureaux
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | - J William Munger
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.,Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Taro Nakai
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, 0617, Taiwan.,International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, 99775, USA
| | - Johan Neirynck
- Environment and Climate, Research Institute for Nature and Forest, Geraardsbergen, 9500, Belgium
| | - Zoran Nesic
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T1Z4, Canada
| | - Giacomo Nicolini
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Asko Noormets
- Department of Ecosystem Science and Management, Texas A&M University, College Station, TX, 77843, USA
| | - Matthew Northwood
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Casuarina, 0810, Australia
| | - Marcelo Nosetto
- Grupo de Estudios Ambientales, Instituto de Matemática Aplicada San Luis (UNSL & CONICET), San Luis, D5700HHW, Argentina.,Facultad de Ciencias Agropecuarias (UNER), Oro Verde, 3100, Argentina
| | - Yann Nouvellon
- UMR Eco&Sols, CIRAD, Montpellier, 34060, France.,Eco&Sols, Univ Montpellier-CIRAD-INRA-IRD-Montpellier SupAgro, Montpellier, 34060, France
| | - Kimberly Novick
- O'Neill School of Public and Environmental Affairs, Indiana University Bloomington, Bloomington, IN, 47405, USA
| | - Walter Oechel
- Global Change Research Group, Dept. Biology, San Diego State University, San Diego, CA, 92182, USA.,Department of Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, EX44RJ, United Kingdom
| | - Jørgen Eivind Olesen
- Department of Agroecology, Aarhus University, Tjele, 8830, Denmark.,iCLIMATE, Aarhus University, Tjele, 8830, Denmark
| | | | - Shirley A Papuga
- Department of Geology, Wayne State University, Detroit, MI, 48202, USA
| | - Frans-Jan Parmentier
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,Department of Geosciences, University of Oslo, Oslo, 0315, Norway
| | | | - Marian Pavelka
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Matthias Peichl
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, 90183, Sweden
| | - Elise Pendall
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, 2751, Australia
| | - Richard P Phillips
- Department of Biology, Indiana University Bloomington, Bloomington, IN, 47401, USA
| | - Kim Pilegaard
- Department of Environmental Engineering, Technical University of Denmark (DTU), Kongens Lyngby, 2800, Denmark
| | - Norbert Pirk
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,CSIRO Land and Water, Wembley, 6913, Australia
| | - Gabriela Posse
- Instituto de Clima y Agua, Instituto Nacional de Tecnologia Agropecuaria (INTA), Buenos Aires, 1686, Argentina
| | - Thomas Powell
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Heiko Prasse
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | | | - Serge Rambal
- CEFE, CNRS, Univ Montpellier, Montpellier, 34293, France
| | - Üllar Rannik
- Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Naama Raz-Yaseef
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Corinna Rebmann
- Department Computational Hydrosystems, Helmholtz Centre for Environmental Research UFZ, Leipzig, 04318, Germany
| | - David Reed
- Center for Global Change & Earth Observations, Michigan State University, East Lansing, MI, 48823, USA
| | - Victor Resco de Dios
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, 2751, Australia.,School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Natalia Restrepo-Coupe
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Borja R Reverter
- Departamento de Química e Física, Universidade Federal da Paraiba, Areia, PB, 58397-000, Brazil
| | - Marilyn Roland
- Department of Biology, Research Group PLECO, University of Antwerp, Antwerp, 2610, Belgium
| | | | - Torsten Sachs
- Remote Sensing and Geoinformatics, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
| | - Scott R Saleska
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Enrique P Sánchez-Cañete
- Department of Applied Physics, University of Granada, Granada, 18071, Spain.,Andalusian Institute for Earth System Research (CEAMA-IISTA), Granada, 18006, Spain
| | - Zulia M Sanchez-Mejia
- Ciencias del Agua y Medioambiente, Instituto Tecnológico de Sonora, Ciudad Obregón, 85000, Mexico
| | - Hans Peter Schmid
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, 82467, Germany
| | - Marius Schmidt
- Agrosphere (IBG3), Forschungszentrum Jülich, Jülich, 52428, Germany
| | - Karl Schneider
- Geographical Institute, University of Cologne, Cologne, 50923, Germany
| | - Frederik Schrader
- Thünen Institute of Climate-Smart Agriculture, Federal Research Institute of Rural Areas, Forestry and Fisheries, Braunschweig, 38116, Germany
| | - Ivan Schroder
- Department of Industry, Innovation and Science, Geoscience Australia, Canberra, 2609, Australia
| | - Russell L Scott
- Southwest Watershed Research Center, USDA-ARS, Tucson, AZ, 85719, USA
| | - Pavel Sedlák
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic.,Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, 14100, Czech Republic
| | - Penélope Serrano-Ortíz
- Andalusian Institute for Earth System Research (CEAMA-IISTA), Granada, 18006, Spain.,Department of Ecology, University of Granada, Granada, 18071, Spain
| | - Changliang Shao
- National Hulunber Grassland Ecosystem Observation and Research Station & Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Peili Shi
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Ivan Shironya
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Lukas Siebicke
- Bioclimatology, University of Goettingen, Goettingen, 37077, Germany
| | - Ladislav Šigut
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Richard Silberstein
- School of Agriculture and Environment, University of Western Australia, Crawley, 6009, Australia.,School of Science, Edith Cowan University, Joondalup, 6027, Australia
| | - Costantino Sirca
- Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.,Department of Agriculture, University of Sassari, Sassari, 07100, Italy
| | - Donatella Spano
- Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.,Department of Agriculture, University of Sassari, Sassari, 07100, Italy
| | - Rainer Steinbrecher
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, 82467, Germany
| | | | - Cove Sturtevant
- National Ecological Observatory Network Program, Boulder, CO, 80301, USA
| | - Andy Suyker
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Torbern Tagesson
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, 1350, Denmark
| | - Satoru Takanashi
- Kansai Research Center, Forestry and Forest Products Research Institute, Kyoto, 612-0855, Japan
| | - Yanhong Tang
- College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Nigel Tapper
- School of Earth, Atmosphere and Environment, Monash University, Clayton, 3800, Australia
| | - Jonathan Thom
- Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Michele Tomassucci
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Terrasystem srl, Viterbo, 01100, Italy
| | | | - Shawn Urbanski
- USDA Forest Service, Rocky Mountain Research Station, Missoula, MT, 59808, USA
| | - Riccardo Valentini
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Michiel van der Molen
- Meteorology and Air Quality group, Wageningen University, 6500, Wageningen, The Netherlands
| | - Eva van Gorsel
- Fenner School of Environment and Society, Australian National University Canberra, Canberra, ACT, 2600, Australia
| | - Ko van Huissteden
- Department of Earth Sciences, Vrije Universiteit Amsterdam, Amsterdam, 1081 HV, The Netherlands
| | - Andrej Varlagin
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | | | - Timo Vesala
- Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Caroline Vincke
- Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, 1348, Belgium
| | - Domenico Vitale
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Natalia Vygodskaya
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Jeffrey P Walker
- Department of Civil Engineering, Monash University, Clayton, 3800, Australia
| | - Elizabeth Walter-Shea
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Huimin Wang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Robin Weber
- ESPM, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Sebastian Westermann
- Instituto de Clima y Agua, Instituto Nacional de Tecnologia Agropecuaria (INTA), Buenos Aires, 1686, Argentina
| | - Christian Wille
- Remote Sensing and Geoinformatics, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
| | - Steven Wofsy
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.,Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Georg Wohlfahrt
- Department of Ecology, University of Innsbruck, Innsbruck, 6020, Austria
| | - Sebastian Wolf
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - William Woodgate
- CSIRO Land and Water, Canberra, 2601, Australia.,School of Earth and Environmental Sciences, The University of Queensland, St Lucia, 4072, Australia
| | - Yuelin Li
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Roberto Zampedri
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Junhui Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Guoyi Zhou
- College of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Donatella Zona
- Global Change Research Group, Dept. Biology, San Diego State University, San Diego, CA, 92182, USA.,Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S102TN, United Kingdom
| | - Deb Agarwal
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Sebastien Biraud
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Margaret Torn
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Dario Papale
- DIBAF, University of Tuscia, Viterbo, 01100, Italy. .,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.
| |
Collapse
|
12
|
Baldocchi D, Ma S, Verfaillie J. On the inter- and intra-annual variability of ecosystem evapotranspiration and water use efficiency of an oak savanna and annual grassland subjected to booms and busts in rainfall. Glob Chang Biol 2021; 27:359-375. [PMID: 33091183 DOI: 10.1111/gcb.15414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/08/2020] [Indexed: 06/11/2023]
Abstract
Whether annual evapotranspiration of native ecosystems is increasing or decreasing with time as CO2 concentrations are rising, the climate is warming and rainfall experiences booms and busts, remains an unanswered question in the field of global change biology. To answer this question, we measured evapotranspiration and carbon dioxide exchange over and under an oak savanna and over an annual grassland in the Mediterranean climate of California, USA, from 2001 through 2019 with the eddy covariance method; during this 19-year period, CO2 rose 40 ppm, air temperature increased by 1°C and annual rainfall ranged between 133 and 890 mm/year. No temporal trend in evapotranspiration or water use efficiency was observed over this time duration. Many competing positive and negative feedbacks among stomatal sensitivity to carbon dioxide concentrations, soil moisture, and vapor pressure deficit, the impact of temperature on saturation vapor pressure and access to groundwater muted the response of evapotranspiration to its changing world when integrated to the ecosystem scale and annual time steps. At the intra-annual time scale, we found that plants transmit information on soil moisture status through their influence on the vapor pressure deficit of the atmospheric boundary layer. The inter-annual variations in evaporative water use by the savanna and annual grassland were relatively decoupled from the booms and busts in rainfall. Instead, variations in length of growing season and access to groundwater explained much of this year-to-year variation in annual evapotranspiration. The access of groundwater by the oak savanna may make these ecosystems more robust in a warmer world, than was previously thought. This is a scale emergent property that needs better consideration in coupled climate-ecosystem models.
Collapse
Affiliation(s)
- Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA, USA
| | - Siyan Ma
- Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA, USA
| | - Joe Verfaillie
- Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA, USA
| |
Collapse
|
13
|
Bond‐Lamberty B, Christianson DS, Malhotra A, Pennington SC, Sihi D, AghaKouchak A, Anjileli H, Altaf Arain M, Armesto JJ, Ashraf S, Ataka M, Baldocchi D, Andrew Black T, Buchmann N, Carbone MS, Chang S, Crill P, Curtis PS, Davidson EA, Desai AR, Drake JE, El‐Madany TS, Gavazzi M, Görres C, Gough CM, Goulden M, Gregg J, Gutiérrez del Arroyo O, He J, Hirano T, Hopple A, Hughes H, Järveoja J, Jassal R, Jian J, Kan H, Kaye J, Kominami Y, Liang N, Lipson D, Macdonald CA, Maseyk K, Mathes K, Mauritz M, Mayes MA, McNulty S, Miao G, Migliavacca M, Miller S, Miniat CF, Nietz JG, Nilsson MB, Noormets A, Norouzi H, O’Connell CS, Osborne B, Oyonarte C, Pang Z, Peichl M, Pendall E, Perez‐Quezada JF, Phillips CL, Phillips RP, Raich JW, Renchon AA, Ruehr NK, Sánchez‐Cañete EP, Saunders M, Savage KE, Schrumpf M, Scott RL, Seibt U, Silver WL, Sun W, Szutu D, Takagi K, Takagi M, Teramoto M, Tjoelker MG, Trumbore S, Ueyama M, Vargas R, Varner RK, Verfaillie J, Vogel C, Wang J, Winston G, Wood TE, Wu J, Wutzler T, Zeng J, Zha T, Zhang Q, Zou J. COSORE: A community database for continuous soil respiration and other soil-atmosphere greenhouse gas flux data. Glob Chang Biol 2020; 26:7268-7283. [PMID: 33026137 PMCID: PMC7756728 DOI: 10.1111/gcb.15353] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 05/07/2023]
Abstract
Globally, soils store two to three times as much carbon as currently resides in the atmosphere, and it is critical to understand how soil greenhouse gas (GHG) emissions and uptake will respond to ongoing climate change. In particular, the soil-to-atmosphere CO2 flux, commonly though imprecisely termed soil respiration (RS ), is one of the largest carbon fluxes in the Earth system. An increasing number of high-frequency RS measurements (typically, from an automated system with hourly sampling) have been made over the last two decades; an increasing number of methane measurements are being made with such systems as well. Such high frequency data are an invaluable resource for understanding GHG fluxes, but lack a central database or repository. Here we describe the lightweight, open-source COSORE (COntinuous SOil REspiration) database and software, that focuses on automated, continuous and long-term GHG flux datasets, and is intended to serve as a community resource for earth sciences, climate change syntheses and model evaluation. Contributed datasets are mapped to a single, consistent standard, with metadata on contributors, geographic location, measurement conditions and ancillary data. The design emphasizes the importance of reproducibility, scientific transparency and open access to data. While being oriented towards continuously measured RS , the database design accommodates other soil-atmosphere measurements (e.g. ecosystem respiration, chamber-measured net ecosystem exchange, methane fluxes) as well as experimental treatments (heterotrophic only, etc.). We give brief examples of the types of analyses possible using this new community resource and describe its accompanying R software package.
Collapse
Affiliation(s)
- Ben Bond‐Lamberty
- Pacific Northwest National LaboratoryJoint Global Change Research Institute at the University of Maryland–College ParkCollege ParkMDUSA
| | | | - Avni Malhotra
- Department of Earth System ScienceStanford UniversityStanfordCAUSA
| | - Stephanie C. Pennington
- Pacific Northwest National LaboratoryJoint Global Change Research Institute at the University of Maryland–College ParkCollege ParkMDUSA
| | - Debjani Sihi
- Climate Change Science Institute and Environmental Sciences DivisionOak Ridge National LaboratoryOak RidgeTNUSA
- Present address:
Department of Environmental SciencesEmory UniversityAtlantaGAUSA
| | - Amir AghaKouchak
- Department of Civil and Environmental EngineeringUniversity of California IrvineIrvineCAUSA
| | - Hassan Anjileli
- Department of Civil and Environmental EngineeringUniversity of California IrvineIrvineCAUSA
| | - M. Altaf Arain
- School of Geography and Earth SciencesMcMaster UniversityHamiltonOntarioCanada
| | - Juan J. Armesto
- Departamento de EcologíaPontificia Universidad Católica de ChileSantiagoChile
- Instituto de Ecología y BiodiversidadSantiagoChile
| | - Samaneh Ashraf
- Department of Building, Civil and Environmental EngineeringConcordia UniversityMontrealQCCanada
| | - Mioko Ataka
- Research Institute for Sustainable HumanosphereKyoto UniversityUji CityKyotoJapan
| | - Dennis Baldocchi
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCAUSA
| | - Thomas Andrew Black
- Faculty of Land and Food SystemsUniversity of British ColumbiaVancouverBCCanada
| | - Nina Buchmann
- Department of Environmental Systems ScienceInstitute of Agricultural SciencesETH ZurichZurichSwitzerland
| | - Mariah S. Carbone
- Center for Ecosystem Science and SocietyNorthern Arizona UniversityFlagstaffAZUSA
| | - Shih‐Chieh Chang
- Department of Natural Resources and Environmental StudiesCenter for Interdisciplinary Research on Ecology and SustainabilityNational Dong Hwa UniversityHualienTaiwan
| | - Patrick Crill
- Department of Geological Sciences and Bolin Centre for Climate ResearchStockholm UniversityStockholmSweden
| | - Peter S. Curtis
- Department of Evolution, Ecology and Organismal BiologyOhio State UniversityColumbusOHUSA
| | - Eric A. Davidson
- Appalachian LaboratoryUniversity of Maryland Center for Environmental ScienceFrostburgMDUSA
| | - Ankur R. Desai
- Department of Atmospheric and Oceanic SciencesUniversity of Wisconsin‐MadisonMadisonWIUSA
| | - John E. Drake
- Sustainable Resources ManagementSUNY‐ESFSyracuseNYUSA
| | | | - Michael Gavazzi
- Eastern Forest Environmental Threat Assessment CenterUSDA Forest ServiceResearch Triangle ParkNCUSA
| | | | | | | | - Jillian Gregg
- Sustainability Double Degree ProgramOregon State UniversityCorvallisORUSA
| | | | - Jin‐Sheng He
- Institute of EcologyCollege of Urban and Environmental SciencesPeking UniversityBeijingChina
| | - Takashi Hirano
- Research Faculty of AgricultureHokkaido UniversitySapporoJapan
| | - Anya Hopple
- Pacific Northwest National LaboratoryRichlandWAUSA
- Smithsonian Environmental Research CenterEdgewaterMDUSA
| | - Holly Hughes
- School of Forest ResourcesUniversity of MaineOronoMEUSA
| | - Järvi Järveoja
- Department of Forest Ecology and ManagementSwedish University of Agricultural SciencesUmeåSweden
| | - Rachhpal Jassal
- Faculty of Land and Food SystemsUniversity of British ColumbiaVancouverBCCanada
| | - Jinshi Jian
- Pacific Northwest National LaboratoryJoint Global Change Research Institute at the University of Maryland–College ParkCollege ParkMDUSA
| | - Haiming Kan
- Beijing Research & Development Centre for Grass and EnvironmentBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Jason Kaye
- The Pennsylvania State UniversityUniversity ParkPAUSA
| | - Yuji Kominami
- Forestry and Forest Products Research InstituteTsukuba‐cityJapan
| | - Naishen Liang
- Center for Global Environmental ResearchNational Institute for Environmental StudiesTsukubaJapan
| | - David Lipson
- Biology DepartmentSan Diego State UniversitySan DiegoCAUSA
| | - Catriona A. Macdonald
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrithNSWAustralia
| | - Kadmiel Maseyk
- School of Environment, Earth and Ecosystem SciencesThe Open UniversityMilton KeynesUK
| | - Kayla Mathes
- Integrated Life SciencesVirginia Commonwealth UniversityRichmondVAUSA
| | | | - Melanie A. Mayes
- Climate Change Science Institute and Environmental Sciences DivisionOak Ridge National LaboratoryOak RidgeTNUSA
| | - Steve McNulty
- Eastern Forest Environmental Threat Assessment CenterUSDA Forest ServiceResearch Triangle ParkNCUSA
| | - Guofang Miao
- School of Geographical SciencesFujian Normal UniversityFuzhouP.R. China
| | | | - Scott Miller
- University at AlbanyState University of New YorkNew YorkNYUSA
| | - Chelcy F. Miniat
- USDA Forest ServiceSouthern Research StationCoweeta Hydrologic LabOttoNCUSA
| | - Jennifer G. Nietz
- Department of Evolution, Ecology and Organismal BiologyOhio State UniversityColumbusOHUSA
| | - Mats B. Nilsson
- Department of Forest Ecology and ManagementSwedish University of Agricultural SciencesUmeåSweden
| | - Asko Noormets
- Department of Ecology and Conservation BiologyTexas A&M UniversityCollege StationTXUSA
| | - Hamidreza Norouzi
- New York City College of Technology and the Graduate CenterThe City University of New YorkNew YorkNYUSA
| | - Christine S. O’Connell
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCAUSA
- Department of Environmental StudiesMacalester CollegeSt PaulMNUSA
| | - Bruce Osborne
- UCD School of Biology and Environmental Science and UCD Earth InstituteUniversity College DublinDublinIreland
| | | | - Zhuo Pang
- Beijing Research & Development Centre for Grass and EnvironmentBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Matthias Peichl
- Department of Forest Ecology and ManagementSwedish University of Agricultural SciencesUmeåSweden
| | - Elise Pendall
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrithNSWAustralia
| | - Jorge F. Perez‐Quezada
- Department of Environmental Science and Renewable Natural ResourcesUniversity of ChileSantiagoChile
- Institute of Ecology and BiodiversitySantiagoChile
| | - Claire L. Phillips
- USDA Agricultural Research ServiceForage Seed and Cereal Research UnitCorvallisORUSA
| | | | - James W. Raich
- Department of Ecology, Evolution & Organismal BiologyIowa State UniversityAmesIAUSA
| | - Alexandre A. Renchon
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrithNSWAustralia
| | - Nadine K. Ruehr
- Institute of Meteorology and Climate Research–Atmospheric Environmental ResearchKIT‐Campus AlpinKarlsruhe Institute of TechnologyGarmisch‐PartenkirchenGermany
| | | | - Matthew Saunders
- School of Natural SciencesBotany DepartmentTrinity College DublinDublinIreland
| | | | | | | | - Ulli Seibt
- Department of Atmospheric and Oceanic SciencesUniversity of California Los AngelesLos AngelesCAUSA
| | - Whendee L. Silver
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCAUSA
| | - Wu Sun
- Department of Global EcologyCarnegie Institution for ScienceStanfordCAUSA
| | - Daphne Szutu
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCAUSA
| | - Kentaro Takagi
- Field Science Center for Northern BiosphereHokkaido UniversityHoronobeJapan
| | | | - Munemasa Teramoto
- Center for Global Environmental ResearchNational Institute for Environmental StudiesTsukubaJapan
- Present address:
Arid Land Research CenterTottori UniversityTottori680–0001Japan
| | - Mark G. Tjoelker
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrithNSWAustralia
| | | | - Masahito Ueyama
- Graduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiJapan
| | - Rodrigo Vargas
- Department of Plant and Soil SciencesUniversity of DelawareNewarkDEUSA
| | - Ruth K. Varner
- Department of Earth Sciences and Institute for the Study of Earth, Oceans and SpaceUniversity of New HampshireDurhamNHUSA
| | - Joseph Verfaillie
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCAUSA
| | | | - Jinsong Wang
- Key Laboratory of Ecosystem Network Observation and ModelingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijingChina
| | - Greg Winston
- Department of Science, Engineering and MathematicsCypress CollegeCypressCAUSA
| | - Tana E. Wood
- USDA Forest Service International Institute of Tropical ForestryRío PiedrasPuerto Rico
| | - Juying Wu
- Beijing Research & Development Centre for Grass and EnvironmentBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | | | - Jiye Zeng
- Center for Global Environmental ResearchNational Institute for Environmental StudiesTsukubaJapan
| | - Tianshan Zha
- School of Soil and Water ConservationBeijing Forestry UniversityBeijingP.R. China
| | - Quan Zhang
- State Key Laboratory of Water Resources and Hydropower Engineering ScienceWuhan UniversityWuhanP.R. China
| | - Junliang Zou
- Beijing Research & Development Centre for Grass and EnvironmentBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| |
Collapse
|
14
|
Descals A, Verger A, Filella I, Baldocchi D, Janssens IA, Fu YH, Piao S, Peaucelle M, Ciais P, Peñuelas J. Soil thawing regulates the spring growth onset in tundra and alpine biomes. Sci Total Environ 2020; 742:140637. [PMID: 32721746 DOI: 10.1016/j.scitotenv.2020.140637] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/25/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
Soil temperature remains isothermal at 0 °C and water shifts to a liquid phase during soil thawing. Vegetation may receive this process as a signal and a key to restore physiological activity. We aimed to show the relationship between the timing of soil thawing and the spring growth onset. We estimated the delay between the soil thawing and the spring growth onset in 78 sites of the FLUXNET network. We built a soil thawing map derived from modeling for the northern hemisphere and related it to the greenness onset estimated with satellite imagery. Spring onset estimated with GPP time series occurred shortly after soil surface thawing in tundra (1.1 ± 3.5 days) and alpine grasslands (16.6 ± 5.8 days). The association was weaker for deciduous forests (40.3 ± 4.2 days), especially where soils freeze infrequently. Needleleaved forests tended to start the growing season before the end of thawing (-17.4 ± 3.6 days), although observations from remote sensing (MODIS Land Cover Dynamics) indicated that the onset of greenness started after the thawing period (26.8 ± 3.2 days). This study highlights the role of soil temperature at the spring growth onset at high latitudes. Soil thawing becomes less relevant in temperate forests, where soil is occasionally frozen and other climate factors become more important.
Collapse
Affiliation(s)
- Adrià Descals
- CREAF, Centre de Recerca Ecològica i Aplicacions Forestals, E08193 Bellaterra (Cerdanyola de Vallès), Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Barcelona 08193, Catalonia, Spain.
| | - Aleixandre Verger
- CREAF, Centre de Recerca Ecològica i Aplicacions Forestals, E08193 Bellaterra (Cerdanyola de Vallès), Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Barcelona 08193, Catalonia, Spain.
| | - Iolanda Filella
- CREAF, Centre de Recerca Ecològica i Aplicacions Forestals, E08193 Bellaterra (Cerdanyola de Vallès), Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Barcelona 08193, Catalonia, Spain.
| | - Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA.
| | - Ivan A Janssens
- Department of Biology, University of Antwerp, Wilrijk, 2610, Belgium.
| | - Yongshuo H Fu
- College of Water Sciences, Beijing Normal University, Beijing, China.
| | | | - Marc Peaucelle
- CREAF, Centre de Recerca Ecològica i Aplicacions Forestals, E08193 Bellaterra (Cerdanyola de Vallès), Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Barcelona 08193, Catalonia, Spain; Computational and Applied Vegetation Ecology Laboratory - CAVElab, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium.
| | - Philippe Ciais
- Laboratoire des Sciences du Climat et de l'Environnement, UMR 1572 CEA-CNRS UVSQ, 91191, Gif sur Yvette, France.
| | - Josep Peñuelas
- CREAF, Centre de Recerca Ecològica i Aplicacions Forestals, E08193 Bellaterra (Cerdanyola de Vallès), Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Barcelona 08193, Catalonia, Spain.
| |
Collapse
|
15
|
Liu J, Zhou Y, Valach A, Shortt R, Kasak K, Rey-Sanchez C, Hemes KS, Baldocchi D, Lai DYF. Methane emissions reduce the radiative cooling effect of a subtropical estuarine mangrove wetland by half. Glob Chang Biol 2020; 26:4998-5016. [PMID: 32574398 DOI: 10.1111/gcb.15247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
The role of coastal mangrove wetlands in sequestering atmospheric carbon dioxide (CO2 ) and mitigating climate change has received increasing attention in recent years. While recent studies have shown that methane (CH4 ) emissions can potentially offset the carbon burial rates in low-salinity coastal wetlands, there is hitherto a paucity of direct and year-round measurements of ecosystem-scale CH4 flux (FCH4 ) from mangrove ecosystems. In this study, we examined the temporal variations and biophysical drivers of ecosystem-scale FCH4 in a subtropical estuarine mangrove wetland based on 3 years of eddy covariance measurements. Our results showed that daily mangrove FCH4 reached a peak of over 0.1 g CH4 -C m-2 day-1 during the summertime owing to a combination of high temperature and low salinity, while the wintertime FCH4 was negligible. In this mangrove, the mean annual CH4 emission was 11.7 ± 0.4 g CH4 -C m-2 year-1 while the annual net ecosystem CO2 exchange ranged between -891 and -690 g CO2 -C m-2 year-1 , indicating a net cooling effect on climate over decadal to centurial timescales. Meanwhile, we showed that mangrove FCH4 could offset the negative radiative forcing caused by CO2 uptake by 52% and 24% over a time horizon of 20 and 100 years, respectively, based on the corresponding sustained-flux global warming potentials. Moreover, we found that 87% and 69% of the total variance of daily FCH4 could be explained by the random forest machine learning algorithm and traditional linear regression model, respectively, with soil temperature and salinity being the most dominant controls. This study was the first of its kind to characterize ecosystem-scale FCH4 in a mangrove wetland with long-term eddy covariance measurements. Our findings implied that future environmental changes such as climate warming and increasing river discharge might increase CH4 emissions and hence reduce the net radiative cooling effect of estuarine mangrove forests.
Collapse
Affiliation(s)
- Jiangong Liu
- Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Yulun Zhou
- Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Alex Valach
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - Robert Shortt
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - Kuno Kasak
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
- Department of Geography, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Camilo Rey-Sanchez
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - Kyle S Hemes
- Stanford Woods Institute for the Environment, Stanford University, Stanford, CA, USA
| | - Dennis Baldocchi
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - Derrick Y F Lai
- Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
- Centre for Environmental Policy and Resource Management, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| |
Collapse
|
16
|
Pastorello G, Trotta C, Canfora E, Chu H, Christianson D, Cheah YW, Poindexter C, Chen J, Elbashandy A, Humphrey M, Isaac P, Polidori D, Reichstein M, Ribeca A, van Ingen C, Vuichard N, Zhang L, Amiro B, Ammann C, Arain MA, Ardö J, Arkebauer T, Arndt SK, Arriga N, Aubinet M, Aurela M, Baldocchi D, Barr A, Beamesderfer E, Marchesini LB, Bergeron O, Beringer J, Bernhofer C, Berveiller D, Billesbach D, Black TA, Blanken PD, Bohrer G, Boike J, Bolstad PV, Bonal D, Bonnefond JM, Bowling DR, Bracho R, Brodeur J, Brümmer C, Buchmann N, Burban B, Burns SP, Buysse P, Cale P, Cavagna M, Cellier P, Chen S, Chini I, Christensen TR, Cleverly J, Collalti A, Consalvo C, Cook BD, Cook D, Coursolle C, Cremonese E, Curtis PS, D'Andrea E, da Rocha H, Dai X, Davis KJ, Cinti BD, Grandcourt AD, Ligne AD, De Oliveira RC, Delpierre N, Desai AR, Di Bella CM, Tommasi PD, Dolman H, Domingo F, Dong G, Dore S, Duce P, Dufrêne E, Dunn A, Dušek J, Eamus D, Eichelmann U, ElKhidir HAM, Eugster W, Ewenz CM, Ewers B, Famulari D, Fares S, Feigenwinter I, Feitz A, Fensholt R, Filippa G, Fischer M, Frank J, Galvagno M, Gharun M, Gianelle D, Gielen B, Gioli B, Gitelson A, Goded I, Goeckede M, Goldstein AH, Gough CM, Goulden ML, Graf A, Griebel A, Gruening C, Grünwald T, Hammerle A, Han S, Han X, Hansen BU, Hanson C, Hatakka J, He Y, Hehn M, Heinesch B, Hinko-Najera N, Hörtnagl L, Hutley L, Ibrom A, Ikawa H, Jackowicz-Korczynski M, Janouš D, Jans W, Jassal R, Jiang S, Kato T, Khomik M, Klatt J, Knohl A, Knox S, Kobayashi H, Koerber G, Kolle O, Kosugi Y, Kotani A, Kowalski A, Kruijt B, Kurbatova J, Kutsch WL, Kwon H, Launiainen S, Laurila T, Law B, Leuning R, Li Y, Liddell M, Limousin JM, Lion M, Liska AJ, Lohila A, López-Ballesteros A, López-Blanco E, Loubet B, Loustau D, Lucas-Moffat A, Lüers J, Ma S, Macfarlane C, Magliulo V, Maier R, Mammarella I, Manca G, Marcolla B, Margolis HA, Marras S, Massman W, Mastepanov M, Matamala R, Matthes JH, Mazzenga F, McCaughey H, McHugh I, McMillan AMS, Merbold L, Meyer W, Meyers T, Miller SD, Minerbi S, Moderow U, Monson RK, Montagnani L, Moore CE, Moors E, Moreaux V, Moureaux C, Munger JW, Nakai T, Neirynck J, Nesic Z, Nicolini G, Noormets A, Northwood M, Nosetto M, Nouvellon Y, Novick K, Oechel W, Olesen JE, Ourcival JM, Papuga SA, Parmentier FJ, Paul-Limoges E, Pavelka M, Peichl M, Pendall E, Phillips RP, Pilegaard K, Pirk N, Posse G, Powell T, Prasse H, Prober SM, Rambal S, Rannik Ü, Raz-Yaseef N, Rebmann C, Reed D, Dios VRD, Restrepo-Coupe N, Reverter BR, Roland M, Sabbatini S, Sachs T, Saleska SR, Sánchez-Cañete EP, Sanchez-Mejia ZM, Schmid HP, Schmidt M, Schneider K, Schrader F, Schroder I, Scott RL, Sedlák P, Serrano-Ortíz P, Shao C, Shi P, Shironya I, Siebicke L, Šigut L, Silberstein R, Sirca C, Spano D, Steinbrecher R, Stevens RM, Sturtevant C, Suyker A, Tagesson T, Takanashi S, Tang Y, Tapper N, Thom J, Tomassucci M, Tuovinen JP, Urbanski S, Valentini R, van der Molen M, van Gorsel E, van Huissteden K, Varlagin A, Verfaillie J, Vesala T, Vincke C, Vitale D, Vygodskaya N, Walker JP, Walter-Shea E, Wang H, Weber R, Westermann S, Wille C, Wofsy S, Wohlfahrt G, Wolf S, Woodgate W, Li Y, Zampedri R, Zhang J, Zhou G, Zona D, Agarwal D, Biraud S, Torn M, Papale D. The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data. Sci Data 2020; 7:225. [PMID: 32647314 PMCID: PMC7347557 DOI: 10.1038/s41597-020-0534-3] [Citation(s) in RCA: 173] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/20/2020] [Indexed: 12/02/2022] Open
Abstract
The FLUXNET2015 dataset provides ecosystem-scale data on CO2, water, and energy exchange between the biosphere and the atmosphere, and other meteorological and biological measurements, from 212 sites around the globe (over 1500 site-years, up to and including year 2014). These sites, independently managed and operated, voluntarily contributed their data to create global datasets. Data were quality controlled and processed using uniform methods, to improve consistency and intercomparability across sites. The dataset is already being used in a number of applications, including ecophysiology studies, remote sensing studies, and development of ecosystem and Earth system models. FLUXNET2015 includes derived-data products, such as gap-filled time series, ecosystem respiration and photosynthetic uptake estimates, estimation of uncertainties, and metadata about the measurements, presented for the first time in this paper. In addition, 206 of these sites are for the first time distributed under a Creative Commons (CC-BY 4.0) license. This paper details this enhanced dataset and the processing methods, now made available as open-source codes, making the dataset more accessible, transparent, and reproducible. Measurement(s) | net ecosystem exchange • carbon dioxide • water • energy | Technology Type(s) | eddy covariance • measurement device | Sample Characteristic - Environment | terrestrial biome • atmosphere | Sample Characteristic - Location | Earth (planet) |
Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.12295910
Collapse
Affiliation(s)
- Gilberto Pastorello
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
| | - Carlo Trotta
- DIBAF, University of Tuscia, Viterbo, 01100, Italy
| | - Eleonora Canfora
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Housen Chu
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Danielle Christianson
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - You-Wei Cheah
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Cristina Poindexter
- Department of Civil Engineering, California State University, Sacramento, CA, 95819, USA
| | - Jiquan Chen
- Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, MI, 48823, USA
| | - Abdelrahman Elbashandy
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Marty Humphrey
- Department of Computer Science, University of Virginia, Charlottesville, VA, 22904, USA
| | - Peter Isaac
- TERN Ecosystem Processes, Menzies Creek, VIC3159, Australia
| | - Diego Polidori
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | | | - Alessio Ribeca
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Catharine van Ingen
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Nicolas Vuichard
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CEA CNRS, UVSQ UPSACLAY, Gif sur Yvette, 91190, France
| | - Leiming Zhang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Brian Amiro
- Department of Soil Science, University of Manitoba, Winnipeg, MB, R3T2N2, Canada
| | - Christof Ammann
- Department of Agroecology and Environment, Agroscope Research Institute, Zürich, 8046, Switzerland
| | - M Altaf Arain
- School of Geography and Earth Sciences, McMaster University, L8S4K1, Hamilton, ON, Canada
| | - Jonas Ardö
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden
| | - Timothy Arkebauer
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Stefan K Arndt
- School of Ecosystem and Forest Sciences, The University of Melbourne, Richmond, VIC3121, Australia
| | - Nicola Arriga
- Department of Biology, Research Group PLECO, University of Antwerp, Antwerp, 2610, Belgium.,Joint Research Centre, European Commission, Ispra, 21027, Italy
| | - Marc Aubinet
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | - Mika Aurela
- Finnish Meteorological Institute, Helsinki, 00560, Finland
| | - Dennis Baldocchi
- ESPM, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Alan Barr
- Global Institute for Water Security, University of Saskatchewan, Saskatoon, SK, S7N3H5, Canada.,Climate Research Division, Environment and Climate Change Canada, Saskatoon, SK, S7N3H5, Canada
| | - Eric Beamesderfer
- School of Geography and Earth Sciences, McMaster University, L8S4K1, Hamilton, ON, Canada
| | - Luca Belelli Marchesini
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy.,Department of Landscape Design and Sustainable Ecosystems, Agrarian-Technological Institute, RUDN University, Moscow, 117198, Russia
| | - Onil Bergeron
- Direction du marché du carbone, Ministère du Développement durable de l'Environnement et de la Lutte contre les changements climatiques, Québec, QC, G1R5V7, Canada
| | - Jason Beringer
- School of Agriculture and Environment, University of Western Australia, Crawley, 6009, Australia
| | - Christian Bernhofer
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Daniel Berveiller
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, 91405, France
| | - Dave Billesbach
- Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Thomas Andrew Black
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T1Z4, Canada
| | - Peter D Blanken
- Department of Geography, University of Colorado, Boulder, CO, 80309, USA
| | - Gil Bohrer
- Department of Civil, Environmental & Geodetic Engineering, Ohio State University, Columbus, OH, 43210, USA
| | - Julia Boike
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, 14482, Germany.,Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Paul V Bolstad
- Forest Resources, University of Minnesota, St Paul, MN, 55108, USA
| | - Damien Bonal
- Université de Lorraine, AgroParisTech, INRAE, UMR Silva, Nancy, 54000, France
| | | | - David R Bowling
- School of Biological Sciences, University of Utah, Salt Lake City, UT, 84112, USA
| | - Rosvel Bracho
- School of Forest Resources and Conservation, University of Florida, Gainesville, FL, 32611, USA
| | - Jason Brodeur
- McMaster University Library, McMaster University, Hamilton, ON, L8S4L6, Canada
| | - Christian Brümmer
- Thünen Institute of Climate-Smart Agriculture, Federal Research Institute of Rural Areas, Forestry and Fisheries, Braunschweig, 38116, Germany
| | - Nina Buchmann
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | | | - Sean P Burns
- Department of Geography, University of Colorado, Boulder, CO, 80309, USA.,Mesoscale and Microscale Meteorology Laboratory, National Center for Atmospheric Research, Boulder, CO, 80301, USA
| | - Pauline Buysse
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Thiverval-Grignon, 78850, France
| | - Peter Cale
- Australian Landscape Trust, Renmark, SA5341, Australia
| | - Mauro Cavagna
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Pierre Cellier
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Thiverval-Grignon, 78850, France
| | - Shiping Chen
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Isaac Chini
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Torben R Christensen
- Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark
| | - James Cleverly
- School of Life Sciences, University of Technology Sydney, Sydney, 2007, Australia.,Terrestrial Ecosystem Research Network TERN, University of Technology, Sydney, 2007, Australia
| | - Alessio Collalti
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Claudia Consalvo
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Porano, 05010, Italy
| | - Bruce D Cook
- Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA
| | - David Cook
- Environmental Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Carole Coursolle
- Canadian Forest Service, Natural Resources Canada, Québec, QC, G1V4C7, Canada.,Centre d'étude de la forêt, Faculté de foresterie, de géographie et de géomatique, Université Laval, Québec, QC, G1V0A6, Canada
| | - Edoardo Cremonese
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Saint Christophe, 11020, Italy
| | - Peter S Curtis
- Department of Evolution, Ecology, and Organismal Biology, Ohio State University, Columbus, OH, 43210, USA
| | - Ettore D'Andrea
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Humberto da Rocha
- Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo, SP, 01000-000, Brazil
| | - Xiaoqin Dai
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Kenneth J Davis
- Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Bruno De Cinti
- Institute of Research on Terrestrial Ecosystems, National Research Council of Italy, Montelibretti, 00010, Italy
| | | | - Anne De Ligne
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | | | - Nicolas Delpierre
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, 91405, France
| | - Ankur R Desai
- Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Carlos Marcelo Di Bella
- Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, UBA, Buenos Aires, 1417, Argentina
| | - Paul di Tommasi
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Han Dolman
- Department of Earth Sciences, Vrije Universiteit Amsterdam, Amsterdam, 1081 HV, The Netherlands
| | - Francisco Domingo
- Desertification and Geoecology Department, Experimental Station of Arid Zones, CSIC, Almería, 04120, Spain
| | - Gang Dong
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | | | - Pierpaolo Duce
- Institute of BioEconomy, National Research Council of Italy, Sassari, 07100, Italy
| | - Eric Dufrêne
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, Orsay, 91405, France
| | - Allison Dunn
- Department of Earth, Environment, and Physics, Worcester State University, Worcester, MA, 01602, USA
| | - Jiří Dušek
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Derek Eamus
- School of Life Sciences, University of Technology Sydney, Sydney, 2007, Australia
| | - Uwe Eichelmann
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | | | - Werner Eugster
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Cacilia M Ewenz
- Airborne Research Australia, TERN Ecosystem Processes Central Node, Parafield, 5106, Australia
| | - Brent Ewers
- Department of Botany, Program in Ecology, University of Wyoming, 1000 E. Univ. Ave, Laramie, WY, 82071, USA
| | - Daniela Famulari
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Silvano Fares
- Institute of BioEconomy, National Research Council of Italy, Rome, 00100, Italy.,Research Centre for Forestry and Wood, Council for Agricultural Research and Economics, Rome, 00166, Italy
| | - Iris Feigenwinter
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | | | - Rasmus Fensholt
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, 1350, Denmark
| | - Gianluca Filippa
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Saint Christophe, 11020, Italy
| | - Marc Fischer
- Energy Analysis & Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - John Frank
- USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO, 80526, USA
| | - Marta Galvagno
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Saint Christophe, 11020, Italy
| | - Mana Gharun
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Damiano Gianelle
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Bert Gielen
- Department of Biology, Research Group PLECO, University of Antwerp, Antwerp, 2610, Belgium
| | - Beniamino Gioli
- Institute of BioEconomy, National Research Council of Italy, Firenze, 50145, Italy
| | - Anatoly Gitelson
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Ignacio Goded
- Joint Research Centre, European Commission, Ispra, 21027, Italy
| | | | | | - Christopher M Gough
- Department of Biology, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Michael L Goulden
- Department of Earth System Science, University of California, Irvine, CA, 92697, USA
| | - Alexander Graf
- Agrosphere (IBG3), Forschungszentrum Jülich, Jülich, 52428, Germany
| | - Anne Griebel
- School of Ecosystem and Forest Sciences, The University of Melbourne, Richmond, VIC3121, Australia
| | | | - Thomas Grünwald
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Albin Hammerle
- Department of Ecology, University of Innsbruck, Innsbruck, 6020, Austria
| | - Shijie Han
- International Joint Research Laboratory for Global Change Ecology, School of Life Sciences, Henan University, Kaifeng, 450000, China.,Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Xingguo Han
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Birger Ulf Hansen
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, 1350, Denmark
| | - Chad Hanson
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97333, USA
| | - Juha Hatakka
- Finnish Meteorological Institute, Helsinki, 00560, Finland
| | - Yongtao He
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Markus Hehn
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Bernard Heinesch
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | - Nina Hinko-Najera
- School of Ecosystem and Forest Sciences, The University of Melbourne, Creswick, VIC3363, Australia
| | - Lukas Hörtnagl
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Lindsay Hutley
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, 0909, Australia
| | - Andreas Ibrom
- Department of Environmental Engineering, Technical University of Denmark (DTU), Kongens Lyngby, 2800, Denmark
| | - Hiroki Ikawa
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8604, Japan
| | - Marcin Jackowicz-Korczynski
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark
| | - Dalibor Janouš
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Wilma Jans
- Wageningen Environmental Research, Wageningen University and Research, Wageningen, 6708PB, The Netherlands
| | - Rachhpal Jassal
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T1Z4, Canada
| | - Shicheng Jiang
- Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Tomomichi Kato
- Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan.,GI-Core, Hokkaido University, Sapporo, 060-0808, Japan
| | - Myroslava Khomik
- School of Geography and Earth Sciences, McMaster University, L8S4K1, Hamilton, ON, Canada.,Geography and Environmental Management, Waterloo, ON, N2L3G1, Canada
| | - Janina Klatt
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, 82467, Germany
| | - Alexander Knohl
- Bioclimatology, University of Goettingen, Goettingen, 37077, Germany.,Centre of Biodiversity and Sustainable Land Use (CBL), University of Goettingen, Goettingen, 37077, Germany
| | - Sara Knox
- Department of Geography, The University of British Columbia, Vancouver, BC, V6T1Z2, Canada
| | - Hideki Kobayashi
- Research Institute for Global Change, Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology, Yokoama, 236-0001, Japan
| | - Georgia Koerber
- Biological Sciences, University of Adelaide, Adelaide, SA5064, Australia
| | - Olaf Kolle
- Max Planck Institute for Biogeochemistry, Jena, 03641, Germany
| | - Yoshiko Kosugi
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Ayumi Kotani
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 4648601, Japan
| | - Andrew Kowalski
- Department of Applied Physics, University of Granada, Granada, 18071, Spain
| | - Bart Kruijt
- Water systems and Global Change group, Wageningen University, Wageningen, 6500, The Netherlands
| | - Julia Kurbatova
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Werner L Kutsch
- Head Office, Integrated Carbon Observation System (ICOS ERIC), Helsinki, 00560, Finland
| | - Hyojung Kwon
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97333, USA
| | | | - Tuomas Laurila
- Finnish Meteorological Institute, Helsinki, 00560, Finland
| | - Bev Law
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97333, USA
| | | | - Yingnian Li
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China
| | - Michael Liddell
- Centre for Tropical Environmental Sustainability Studies, James Cook University, Cairns, 4878, Australia
| | | | - Marryanna Lion
- Forestry and Environment Division, Forest Research Institute Malaysia (FRIM), Kepong, 52109, Malaysia
| | - Adam J Liska
- Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Annalea Lohila
- Finnish Meteorological Institute, Helsinki, 00560, Finland.,Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Ana López-Ballesteros
- Department of Botany, School of Natural Sciences, Trinity College Dublin, Dublin, D02PN40, Ireland
| | - Efrén López-Blanco
- Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark
| | - Benjamin Loubet
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Thiverval-Grignon, 78850, France
| | - Denis Loustau
- ISPA, Bordeaux Sciences Agro, INRAE, Villenave d'Ornon, 33140, France
| | - Antje Lucas-Moffat
- Thünen Institute of Climate-Smart Agriculture, Federal Research Institute of Rural Areas, Forestry and Fisheries, Braunschweig, 38116, Germany.,German Meteorological Service (DWD), Centre for Agrometeorological Research, Braunschweig, 38116, Germany
| | - Johannes Lüers
- Micrometeorology, University of Bayreuth, Bayreuth, 95440, Germany.,Bayreuth Center of Ecology and Environmental Research, 95448, Bayreuth, Germany
| | - Siyan Ma
- ESPM, University of California Berkeley, Berkeley, CA, 94720, USA
| | | | - Vincenzo Magliulo
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy, Ercolano, 80056, Italy
| | - Regine Maier
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - Ivan Mammarella
- Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Giovanni Manca
- Joint Research Centre, European Commission, Ispra, 21027, Italy
| | - Barbara Marcolla
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Hank A Margolis
- Centre d'étude de la forêt, Faculté de foresterie, de géographie et de géomatique, Université Laval, Québec, QC, G1V0A6, Canada
| | - Serena Marras
- Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.,Department of Agriculture, University of Sassari, Sassari, 07100, Italy
| | - William Massman
- USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO, 80526, USA
| | - Mikhail Mastepanov
- Department of Bioscience, Arctic Research Center, Aarhus University, Roskilde, 4000, Denmark.,Oulanka research station, University of Oulu, Kuusamo, 93900, Finland
| | - Roser Matamala
- Environmental Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | | | - Francesco Mazzenga
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Monterotondo Scalo, 00015, Italy
| | - Harry McCaughey
- Department of Geography and Planning, Queen's University, Kingston, ON, K7L3N6, Canada
| | - Ian McHugh
- School of Ecosystem and Forest Sciences, The University of Melbourne, Richmond, VIC3121, Australia
| | - Andrew M S McMillan
- Environmental Analytics NZ, Ltd. Raumati South, Paraparaumu, 5032, New Zealand
| | - Lutz Merbold
- Mazingira Centre, International Livestock Research Institute (ILRI), Nairobi, 00100, Kenya
| | - Wayne Meyer
- Biological Sciences, University of Adelaide, Adelaide, SA5064, Australia
| | - Tilden Meyers
- NOAA/OAR/Air Resources Laboratory, 325 Broadway, Boulder, CO, 80303, USA
| | - Scott D Miller
- Atmospheric Sciences Research Center, State University of New York at Albany, Albany, NY, 12203, USA
| | | | - Uta Moderow
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | - Russell K Monson
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Leonardo Montagnani
- Forest Department of South Tyrol, Bolzano, 39100, Italy.,Faculty of Science and Technology, Free University of Bolzano, Bolzano, 39100, Italy
| | - Caitlin E Moore
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Eddy Moors
- IHE Delft, Delft, 2611, The Netherlands.,Faculty of Science, VU Amsterdam, Amsterdam, 1081, The Netherlands
| | - Virginie Moreaux
- ISPA, Bordeaux Sciences Agro, INRAE, Villenave d'Ornon, 33140, France.,University Grenoble Alpes, IRD, CNRS, IGE, Grenoble, 38000, France
| | - Christine Moureaux
- TERRA Teaching and Research Center, University of Liege, Gembloux, B-5030, Belgium
| | - J William Munger
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.,Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Taro Nakai
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, 0617, Taiwan.,International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, 99775, USA
| | - Johan Neirynck
- Environment and Climate, Research Institute for Nature and Forest, Geraardsbergen, 9500, Belgium
| | - Zoran Nesic
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T1Z4, Canada
| | - Giacomo Nicolini
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Asko Noormets
- Department of Ecosystem Science and Management, Texas A&M University, College Station, TX, 77843, USA
| | - Matthew Northwood
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Casuarina, 0810, Australia
| | - Marcelo Nosetto
- Grupo de Estudios Ambientales, Instituto de Matemática Aplicada San Luis (UNSL & CONICET), San Luis, D5700HHW, Argentina.,Facultad de Ciencias Agropecuarias (UNER), Oro Verde, 3100, Argentina
| | - Yann Nouvellon
- UMR Eco&Sols, CIRAD, Montpellier, 34060, France.,Eco&Sols, Univ Montpellier-CIRAD-INRA-IRD-Montpellier SupAgro, Montpellier, 34060, France
| | - Kimberly Novick
- O'Neill School of Public and Environmental Affairs, Indiana University Bloomington, Bloomington, IN, 47405, USA
| | - Walter Oechel
- Global Change Research Group, Dept. Biology, San Diego State University, San Diego, CA, 92182, USA.,Department of Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, EX44RJ, United Kingdom
| | - Jørgen Eivind Olesen
- Department of Agroecology, Aarhus University, Tjele, 8830, Denmark.,iCLIMATE, Aarhus University, Tjele, 8830, Denmark
| | | | - Shirley A Papuga
- Department of Geology, Wayne State University, Detroit, MI, 48202, USA
| | - Frans-Jan Parmentier
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,Department of Geosciences, University of Oslo, Oslo, 0315, Norway
| | | | - Marian Pavelka
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Matthias Peichl
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, 90183, Sweden
| | - Elise Pendall
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, 2751, Australia
| | - Richard P Phillips
- Department of Biology, Indiana University Bloomington, Bloomington, IN, 47401, USA
| | - Kim Pilegaard
- Department of Environmental Engineering, Technical University of Denmark (DTU), Kongens Lyngby, 2800, Denmark
| | - Norbert Pirk
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,CSIRO Land and Water, Wembley, 6913, Australia
| | - Gabriela Posse
- Instituto de Clima y Agua, Instituto Nacional de Tecnologia Agropecuaria (INTA), Buenos Aires, 1686, Argentina
| | - Thomas Powell
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Heiko Prasse
- Institute of Hydrology and Meteorology, Technische Universität Dresden, Tharandt, 01737, Germany
| | | | - Serge Rambal
- CEFE, CNRS, Univ Montpellier, Montpellier, 34293, France
| | - Üllar Rannik
- Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Naama Raz-Yaseef
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Corinna Rebmann
- Department Computational Hydrosystems, Helmholtz Centre for Environmental Research UFZ, Leipzig, 04318, Germany
| | - David Reed
- Center for Global Change & Earth Observations, Michigan State University, East Lansing, MI, 48823, USA
| | - Victor Resco de Dios
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, 2751, Australia.,School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Natalia Restrepo-Coupe
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Borja R Reverter
- Departamento de Química e Física, Universidade Federal da Paraiba, Areia, PB, 58397-000, Brazil
| | - Marilyn Roland
- Department of Biology, Research Group PLECO, University of Antwerp, Antwerp, 2610, Belgium
| | | | - Torsten Sachs
- Remote Sensing and Geoinformatics, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
| | - Scott R Saleska
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, 85721, USA
| | - Enrique P Sánchez-Cañete
- Department of Applied Physics, University of Granada, Granada, 18071, Spain.,Andalusian Institute for Earth System Research (CEAMA-IISTA), Granada, 18006, Spain
| | - Zulia M Sanchez-Mejia
- Ciencias del Agua y Medioambiente, Instituto Tecnológico de Sonora, Ciudad Obregón, 85000, Mexico
| | - Hans Peter Schmid
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, 82467, Germany
| | - Marius Schmidt
- Agrosphere (IBG3), Forschungszentrum Jülich, Jülich, 52428, Germany
| | - Karl Schneider
- Geographical Institute, University of Cologne, Cologne, 50923, Germany
| | - Frederik Schrader
- Thünen Institute of Climate-Smart Agriculture, Federal Research Institute of Rural Areas, Forestry and Fisheries, Braunschweig, 38116, Germany
| | - Ivan Schroder
- Department of Industry, Innovation and Science, Geoscience Australia, Canberra, 2609, Australia
| | - Russell L Scott
- Southwest Watershed Research Center, USDA-ARS, Tucson, AZ, 85719, USA
| | - Pavel Sedlák
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic.,Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, 14100, Czech Republic
| | - Penélope Serrano-Ortíz
- Andalusian Institute for Earth System Research (CEAMA-IISTA), Granada, 18006, Spain.,Department of Ecology, University of Granada, Granada, 18071, Spain
| | - Changliang Shao
- National Hulunber Grassland Ecosystem Observation and Research Station & Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Peili Shi
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Ivan Shironya
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Lukas Siebicke
- Bioclimatology, University of Goettingen, Goettingen, 37077, Germany
| | - Ladislav Šigut
- Department of Matter and Energy Fluxes, Global Change Research Institute of the Czech Academy of Sciences, Brno, 60300, Czech Republic
| | - Richard Silberstein
- School of Agriculture and Environment, University of Western Australia, Crawley, 6009, Australia.,School of Science, Edith Cowan University, Joondalup, 6027, Australia
| | - Costantino Sirca
- Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.,Department of Agriculture, University of Sassari, Sassari, 07100, Italy
| | - Donatella Spano
- Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.,Department of Agriculture, University of Sassari, Sassari, 07100, Italy
| | - Rainer Steinbrecher
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, 82467, Germany
| | | | - Cove Sturtevant
- National Ecological Observatory Network Program, Boulder, CO, 80301, USA
| | - Andy Suyker
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Torbern Tagesson
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, 22362, Sweden.,Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, 1350, Denmark
| | - Satoru Takanashi
- Kansai Research Center, Forestry and Forest Products Research Institute, Kyoto, 612-0855, Japan
| | - Yanhong Tang
- College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Nigel Tapper
- School of Earth, Atmosphere and Environment, Monash University, Clayton, 3800, Australia
| | - Jonathan Thom
- Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Michele Tomassucci
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Terrasystem srl, Viterbo, 01100, Italy
| | | | - Shawn Urbanski
- USDA Forest Service, Rocky Mountain Research Station, Missoula, MT, 59808, USA
| | - Riccardo Valentini
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Michiel van der Molen
- Meteorology and Air Quality group, Wageningen University, 6500, Wageningen, The Netherlands
| | - Eva van Gorsel
- Fenner School of Environment and Society, Australian National University Canberra, Canberra, ACT, 2600, Australia
| | - Ko van Huissteden
- Department of Earth Sciences, Vrije Universiteit Amsterdam, Amsterdam, 1081 HV, The Netherlands
| | - Andrej Varlagin
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | | | - Timo Vesala
- Institute for Atmosphere and Earth System Research/Physics, University of Helsinki, Helsinki, 00560, Finland
| | - Caroline Vincke
- Earth and Life Institute, Université Catholique de Louvain, Louvain, 1348, Belgium
| | - Domenico Vitale
- DIBAF, University of Tuscia, Viterbo, 01100, Italy.,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy
| | - Natalia Vygodskaya
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
| | - Jeffrey P Walker
- Department of Civil Engineering, Monash University, Clayton, 3800, Australia
| | - Elizabeth Walter-Shea
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Huimin Wang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Robin Weber
- ESPM, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Sebastian Westermann
- Instituto de Clima y Agua, Instituto Nacional de Tecnologia Agropecuaria (INTA), Buenos Aires, 1686, Argentina
| | - Christian Wille
- Remote Sensing and Geoinformatics, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
| | - Steven Wofsy
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.,Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Georg Wohlfahrt
- Department of Ecology, University of Innsbruck, Innsbruck, 6020, Austria
| | - Sebastian Wolf
- Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland
| | - William Woodgate
- CSIRO Land and Water, Canberra, 2601, Australia.,School of Earth and Environmental Sciences, The University of Queensland, St Lucia, 4072, Australia
| | - Yuelin Li
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Roberto Zampedri
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, San Michele All'adige, 38010, Italy
| | - Junhui Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Guoyi Zhou
- College of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Donatella Zona
- Global Change Research Group, Dept. Biology, San Diego State University, San Diego, CA, 92182, USA.,Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S102TN, United Kingdom
| | - Deb Agarwal
- Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Sebastien Biraud
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Margaret Torn
- Climate & Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Dario Papale
- DIBAF, University of Tuscia, Viterbo, 01100, Italy. .,Euro-Mediterranean Centre on Climate Change Foundation (CMCC), Lecce, 73100, Italy.
| |
Collapse
|
17
|
Kim Y, Johnson MS, Knox SH, Black TA, Dalmagro HJ, Kang M, Kim J, Baldocchi D. Gap-filling approaches for eddy covariance methane fluxes: A comparison of three machine learning algorithms and a traditional method with principal component analysis. Glob Chang Biol 2020; 26:1499-1518. [PMID: 31553826 DOI: 10.1111/gcb.14845] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/12/2019] [Indexed: 06/10/2023]
Abstract
Methane flux (FCH4 ) measurements using the eddy covariance technique have increased over the past decade. FCH4 measurements commonly include data gaps, as is the case with CO2 and energy fluxes. However, gap-filling FCH4 data are more challenging than other fluxes due to its unique characteristics including multidriver dependency, variabilities across multiple timescales, nonstationarity, spatial heterogeneity of flux footprints, and lagged influence of biophysical drivers. Some researchers have applied a marginal distribution sampling (MDS) algorithm, a standard gap-filling method for other fluxes, to FCH4 datasets, and others have applied artificial neural networks (ANN) to resolve the challenging characteristics of FCH4 . However, there is still no consensus regarding FCH4 gap-filling methods due to limited comparative research. We are not aware of the applications of machine learning (ML) algorithms beyond ANN to FCH4 datasets. Here, we compare the performance of MDS and three ML algorithms (ANN, random forest [RF], and support vector machine [SVM]) using multiple combinations of ancillary variables. In addition, we applied principal component analysis (PCA) as an input to the algorithms to address multidriver dependency of FCH4 and reduce the internal complexity of the algorithmic structures. We applied this approach to five benchmark FCH4 datasets from both natural and managed systems located in temperate and tropical wetlands and rice paddies. Results indicate that PCA improved the performance of MDS compared to traditional inputs. ML algorithms performed better when using all available biophysical variables compared to using PCA-derived inputs. Overall, RF was found to outperform other techniques for all sites. We found gap-filling uncertainty is much larger than measurement uncertainty in accumulated CH4 budget. Therefore, the approach used for FCH4 gap filling can have important implications for characterizing annual ecosystem-scale methane budgets, the accuracy of which is important for evaluating natural and managed systems and their interactions with global change processes.
Collapse
Affiliation(s)
- Yeonuk Kim
- Institute for Resources Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada
| | - Mark S Johnson
- Institute for Resources Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Sara H Knox
- Department of Geography, University of British Columbia, Vancouver, BC, Canada
| | - T Andrew Black
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada
| | - Higo J Dalmagro
- Environmental Sciences Graduate Program, University of Cuiabá, Cuiabá, Brazil
| | - Minseok Kang
- National Center for AgroMeteorology, Seoul, South Korea
| | - Joon Kim
- National Center for AgroMeteorology, Seoul, South Korea
- Department of Landscape Architecture & Rural Systems Engineering, Seoul National University, Seoul, South Korea
- Interdisciplinary Program in Agricultural & Forest Meteorology, Seoul National University, Seoul, South Korea
| | - Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, USA
| |
Collapse
|
18
|
Kattge J, Bönisch G, Díaz S, Lavorel S, Prentice IC, Leadley P, Tautenhahn S, Werner GDA, Aakala T, Abedi M, Acosta ATR, Adamidis GC, Adamson K, Aiba M, Albert CH, Alcántara JM, Alcázar C C, Aleixo I, Ali H, Amiaud B, Ammer C, Amoroso MM, Anand M, Anderson C, Anten N, Antos J, Apgaua DMG, Ashman TL, Asmara DH, Asner GP, Aspinwall M, Atkin O, Aubin I, Baastrup-Spohr L, Bahalkeh K, Bahn M, Baker T, Baker WJ, Bakker JP, Baldocchi D, Baltzer J, Banerjee A, Baranger A, Barlow J, Barneche DR, Baruch Z, Bastianelli D, Battles J, Bauerle W, Bauters M, Bazzato E, Beckmann M, Beeckman H, Beierkuhnlein C, Bekker R, Belfry G, Belluau M, Beloiu M, Benavides R, Benomar L, Berdugo-Lattke ML, Berenguer E, Bergamin R, Bergmann J, Bergmann Carlucci M, Berner L, Bernhardt-Römermann M, Bigler C, Bjorkman AD, Blackman C, Blanco C, Blonder B, Blumenthal D, Bocanegra-González KT, Boeckx P, Bohlman S, Böhning-Gaese K, Boisvert-Marsh L, Bond W, Bond-Lamberty B, Boom A, Boonman CCF, Bordin K, Boughton EH, Boukili V, Bowman DMJS, Bravo S, Brendel MR, Broadley MR, Brown KA, Bruelheide H, Brumnich F, Bruun HH, Bruy D, Buchanan SW, Bucher SF, Buchmann N, Buitenwerf R, Bunker DE, Bürger J, Burrascano S, Burslem DFRP, Butterfield BJ, Byun C, Marques M, Scalon MC, Caccianiga M, Cadotte M, Cailleret M, Camac J, Camarero JJ, Campany C, Campetella G, Campos JA, Cano-Arboleda L, Canullo R, Carbognani M, Carvalho F, Casanoves F, Castagneyrol B, Catford JA, Cavender-Bares J, Cerabolini BEL, Cervellini M, Chacón-Madrigal E, Chapin K, Chapin FS, Chelli S, Chen SC, Chen A, Cherubini P, Chianucci F, Choat B, Chung KS, Chytrý M, Ciccarelli D, Coll L, Collins CG, Conti L, Coomes D, Cornelissen JHC, Cornwell WK, Corona P, Coyea M, Craine J, Craven D, Cromsigt JPGM, Csecserits A, Cufar K, Cuntz M, da Silva AC, Dahlin KM, Dainese M, Dalke I, Dalle Fratte M, Dang-Le AT, Danihelka J, Dannoura M, Dawson S, de Beer AJ, De Frutos A, De Long JR, Dechant B, Delagrange S, Delpierre N, Derroire G, Dias AS, Diaz-Toribio MH, Dimitrakopoulos PG, Dobrowolski M, Doktor D, Dřevojan P, Dong N, Dransfield J, Dressler S, Duarte L, Ducouret E, Dullinger S, Durka W, Duursma R, Dymova O, E-Vojtkó A, Eckstein RL, Ejtehadi H, Elser J, Emilio T, Engemann K, Erfanian MB, Erfmeier A, Esquivel-Muelbert A, Esser G, Estiarte M, Domingues TF, Fagan WF, Fagúndez J, Falster DS, Fan Y, Fang J, Farris E, Fazlioglu F, Feng Y, Fernandez-Mendez F, Ferrara C, Ferreira J, Fidelis A, Finegan B, Firn J, Flowers TJ, Flynn DFB, Fontana V, Forey E, Forgiarini C, François L, Frangipani M, Frank D, Frenette-Dussault C, Freschet GT, Fry EL, Fyllas NM, Mazzochini GG, Gachet S, Gallagher R, Ganade G, Ganga F, García-Palacios P, Gargaglione V, Garnier E, Garrido JL, de Gasper AL, Gea-Izquierdo G, Gibson D, Gillison AN, Giroldo A, Glasenhardt MC, Gleason S, Gliesch M, Goldberg E, Göldel B, Gonzalez-Akre E, Gonzalez-Andujar JL, González-Melo A, González-Robles A, Graae BJ, Granda E, Graves S, Green WA, Gregor T, Gross N, Guerin GR, Günther A, Gutiérrez AG, Haddock L, Haines A, Hall J, Hambuckers A, Han W, Harrison SP, Hattingh W, Hawes JE, He T, He P, Heberling JM, Helm A, Hempel S, Hentschel J, Hérault B, Hereş AM, Herz K, Heuertz M, Hickler T, Hietz P, Higuchi P, Hipp AL, Hirons A, Hock M, Hogan JA, Holl K, Honnay O, Hornstein D, Hou E, Hough-Snee N, Hovstad KA, Ichie T, Igić B, Illa E, Isaac M, Ishihara M, Ivanov L, Ivanova L, Iversen CM, Izquierdo J, Jackson RB, Jackson B, Jactel H, Jagodzinski AM, Jandt U, Jansen S, Jenkins T, Jentsch A, Jespersen JRP, Jiang GF, Johansen JL, Johnson D, Jokela EJ, Joly CA, Jordan GJ, Joseph GS, Junaedi D, Junker RR, Justes E, Kabzems R, Kane J, Kaplan Z, Kattenborn T, Kavelenova L, Kearsley E, Kempel A, Kenzo T, Kerkhoff A, Khalil MI, Kinlock NL, Kissling WD, Kitajima K, Kitzberger T, Kjøller R, Klein T, Kleyer M, Klimešová J, Klipel J, Kloeppel B, Klotz S, Knops JMH, Kohyama T, Koike F, Kollmann J, Komac B, Komatsu K, König C, Kraft NJB, Kramer K, Kreft H, Kühn I, Kumarathunge D, Kuppler J, Kurokawa H, Kurosawa Y, Kuyah S, Laclau JP, Lafleur B, Lallai E, Lamb E, Lamprecht A, Larkin DJ, Laughlin D, Le Bagousse-Pinguet Y, le Maire G, le Roux PC, le Roux E, Lee T, Lens F, Lewis SL, Lhotsky B, Li Y, Li X, Lichstein JW, Liebergesell M, Lim JY, Lin YS, Linares JC, Liu C, Liu D, Liu U, Livingstone S, Llusià J, Lohbeck M, López-García Á, Lopez-Gonzalez G, Lososová Z, Louault F, Lukács BA, Lukeš P, Luo Y, Lussu M, Ma S, Maciel Rabelo Pereira C, Mack M, Maire V, Mäkelä A, Mäkinen H, Malhado ACM, Mallik A, Manning P, Manzoni S, Marchetti Z, Marchino L, Marcilio-Silva V, Marcon E, Marignani M, Markesteijn L, Martin A, Martínez-Garza C, Martínez-Vilalta J, Mašková T, Mason K, Mason N, Massad TJ, Masse J, Mayrose I, McCarthy J, McCormack ML, McCulloh K, McFadden IR, McGill BJ, McPartland MY, Medeiros JS, Medlyn B, Meerts P, Mehrabi Z, Meir P, Melo FPL, Mencuccini M, Meredieu C, Messier J, Mészáros I, Metsaranta J, Michaletz ST, Michelaki C, Migalina S, Milla R, Miller JED, Minden V, Ming R, Mokany K, Moles AT, Molnár A, Molofsky J, Molz M, Montgomery RA, Monty A, Moravcová L, Moreno-Martínez A, Moretti M, Mori AS, Mori S, Morris D, Morrison J, Mucina L, Mueller S, Muir CD, Müller SC, Munoz F, Myers-Smith IH, Myster RW, Nagano M, Naidu S, Narayanan A, Natesan B, Negoita L, Nelson AS, Neuschulz EL, Ni J, Niedrist G, Nieto J, Niinemets Ü, Nolan R, Nottebrock H, Nouvellon Y, Novakovskiy A, Nystuen KO, O'Grady A, O'Hara K, O'Reilly-Nugent A, Oakley S, Oberhuber W, Ohtsuka T, Oliveira R, Öllerer K, Olson ME, Onipchenko V, Onoda Y, Onstein RE, Ordonez JC, Osada N, Ostonen I, Ottaviani G, Otto S, Overbeck GE, Ozinga WA, Pahl AT, Paine CET, Pakeman RJ, Papageorgiou AC, Parfionova E, Pärtel M, Patacca M, Paula S, Paule J, Pauli H, Pausas JG, Peco B, Penuelas J, Perea A, Peri PL, Petisco-Souza AC, Petraglia A, Petritan AM, Phillips OL, Pierce S, Pillar VD, Pisek J, Pomogaybin A, Poorter H, Portsmuth A, Poschlod P, Potvin C, Pounds D, Powell AS, Power SA, Prinzing A, Puglielli G, Pyšek P, Raevel V, Rammig A, Ransijn J, Ray CA, Reich PB, Reichstein M, Reid DEB, Réjou-Méchain M, de Dios VR, Ribeiro S, Richardson S, Riibak K, Rillig MC, Riviera F, Robert EMR, Roberts S, Robroek B, Roddy A, Rodrigues AV, Rogers A, Rollinson E, Rolo V, Römermann C, Ronzhina D, Roscher C, Rosell JA, Rosenfield MF, Rossi C, Roy DB, Royer-Tardif S, Rüger N, Ruiz-Peinado R, Rumpf SB, Rusch GM, Ryo M, Sack L, Saldaña A, Salgado-Negret B, Salguero-Gomez R, Santa-Regina I, Santacruz-García AC, Santos J, Sardans J, Schamp B, Scherer-Lorenzen M, Schleuning M, Schmid B, Schmidt M, Schmitt S, Schneider JV, Schowanek SD, Schrader J, Schrodt F, Schuldt B, Schurr F, Selaya Garvizu G, Semchenko M, Seymour C, Sfair JC, Sharpe JM, Sheppard CS, Sheremetiev S, Shiodera S, Shipley B, Shovon TA, Siebenkäs A, Sierra C, Silva V, Silva M, Sitzia T, Sjöman H, Slot M, Smith NG, Sodhi D, Soltis P, Soltis D, Somers B, Sonnier G, Sørensen MV, Sosinski EE, Soudzilovskaia NA, Souza AF, Spasojevic M, Sperandii MG, Stan AB, Stegen J, Steinbauer K, Stephan JG, Sterck F, Stojanovic DB, Strydom T, Suarez ML, Svenning JC, Svitková I, Svitok M, Svoboda M, Swaine E, Swenson N, Tabarelli M, Takagi K, Tappeiner U, Tarifa R, Tauugourdeau S, Tavsanoglu C, Te Beest M, Tedersoo L, Thiffault N, Thom D, Thomas E, Thompson K, Thornton PE, Thuiller W, Tichý L, Tissue D, Tjoelker MG, Tng DYP, Tobias J, Török P, Tarin T, Torres-Ruiz JM, Tóthmérész B, Treurnicht M, Trivellone V, Trolliet F, Trotsiuk V, Tsakalos JL, Tsiripidis I, Tysklind N, Umehara T, Usoltsev V, Vadeboncoeur M, Vaezi J, Valladares F, Vamosi J, van Bodegom PM, van Breugel M, Van Cleemput E, van de Weg M, van der Merwe S, van der Plas F, van der Sande MT, van Kleunen M, Van Meerbeek K, Vanderwel M, Vanselow KA, Vårhammar A, Varone L, Vasquez Valderrama MY, Vassilev K, Vellend M, Veneklaas EJ, Verbeeck H, Verheyen K, Vibrans A, Vieira I, Villacís J, Violle C, Vivek P, Wagner K, Waldram M, Waldron A, Walker AP, Waller M, Walther G, Wang H, Wang F, Wang W, Watkins H, Watkins J, Weber U, Weedon JT, Wei L, Weigelt P, Weiher E, Wells AW, Wellstein C, Wenk E, Westoby M, Westwood A, White PJ, Whitten M, Williams M, Winkler DE, Winter K, Womack C, Wright IJ, Wright SJ, Wright J, Pinho BX, Ximenes F, Yamada T, Yamaji K, Yanai R, Yankov N, Yguel B, Zanini KJ, Zanne AE, Zelený D, Zhao YP, Zheng J, Zheng J, Ziemińska K, Zirbel CR, Zizka G, Zo-Bi IC, Zotz G, Wirth C. TRY plant trait database - enhanced coverage and open access. Glob Chang Biol 2020; 26:119-188. [PMID: 31891233 DOI: 10.1111/gcb.14904] [Citation(s) in RCA: 472] [Impact Index Per Article: 118.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 09/12/2019] [Indexed: 05/17/2023]
Abstract
Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits-almost complete coverage for 'plant growth form'. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait-environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives.
Collapse
Affiliation(s)
- Jens Kattge
- Max Planck Institute for Biogeochemistry, Jena, Germany
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | | | - Sandra Díaz
- Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto Multidisciplinario de Biología Vegetal (IMBIV), and Factulad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Sandra Lavorel
- Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, LECA, Grenoble, France
| | | | - Paul Leadley
- Ecologie Systématique Evolution, CNRS, AgroParisTech, University of Paris-Sud, Université Paris-Saclay, Orsay, France
| | | | - Gijsbert D A Werner
- Department of Zoology, University of Oxford, Oxford, UK
- Balliol College, University of Oxford, Oxford, UK
| | | | - Mehdi Abedi
- Department of Range Management, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Iran
| | | | - George C Adamidis
- Biodiversity Conservation Laboratory, Department of Environment, University of the Aegean, Mytilene, Greece
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Kairi Adamson
- Tartu Observatory, University of Tartu, Tartumaa, Estonia
| | - Masahiro Aiba
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Cécile H Albert
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
| | | | | | - Izabela Aleixo
- National Institute of Amazonian Research (INPA), Manaus, Brazil
| | - Hamada Ali
- Botany Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | | | - Christian Ammer
- Forest Sciences, University of Göttingen, Göttingen, Germany
- Centre for Biodiversity and Sustainable Land-use, University of Göttingen, Göttingen, Germany
| | - Mariano M Amoroso
- Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural (IRNAD), Universidad Nacional de Río Negro, El Bolsón, Argentina
- Conicet-Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | | | - Carolyn Anderson
- Pacific Northwest National Laboratory, Richland, WA, USA
- University of Massachusetts Amherst, Amherst, MA, USA
| | - Niels Anten
- Centre for Crop Systems Analysis, Wageningen University, Wageningen, The Netherlands
| | | | | | | | - Degi Harja Asmara
- Centre for Forest Research, Institute for Integrative Systems Biology, Université Laval, Quebec, QC, Canada
| | | | - Michael Aspinwall
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - Owen Atkin
- ARC Centre for Excellence in Plant Energy Biology, Australian National University, Acton, ACT, Australia
| | - Isabelle Aubin
- Great Lakes Forestry Centre, Canadian Forest Service, Natural Resources Canada, Sault Ste. Marie, ON, Canada
| | | | - Khadijeh Bahalkeh
- Department of Range Management, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Iran
| | - Michael Bahn
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | | | | | - Jan P Bakker
- Conservation Ecology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, The Netherlands
| | - Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California Berkeley, Berkeley, CA, USA
| | - Jennifer Baltzer
- Biology Department, Wilfrid Laurier University, Waterloo, ON, Canada
| | - Arindam Banerjee
- Department of Forest Resources, University of Minnesota, St. Paul, MN, USA
| | | | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Diego R Barneche
- College of Life and Environmental Sciences, University of Exeter, Penryn, UK
| | - Zdravko Baruch
- School of Biological Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Denis Bastianelli
- CIRAD, UMR SELMET, Montpellier, France
- SELMET, CIRAD, INRA, Univ Montpellier, Montpellier SupAgro, France
| | - John Battles
- University of California at Berkeley, Berkeley, CA, USA
| | - William Bauerle
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, USA
| | - Marijn Bauters
- Department of Green Chemistry and Technology, Ghent University, Gent, Belgium
- Department of Environment, Ghent University, Gent, Belgium
| | - Erika Bazzato
- Department of Life and Environmental Sciences, Botany Division, University of Cagliari, Cagliari, Italy
| | - Michael Beckmann
- Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | | | | | - Renee Bekker
- Groningen Institute of Archaeology (GIA), University of Groningen, Groningen, The Netherlands
| | - Gavin Belfry
- Department of Biological Sciences, University of Tennessee, Knoxville, TN, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
| | - Michael Belluau
- Département des Science, Université du Québec À Montréal, Montreal, QC, Canada
| | - Mirela Beloiu
- Department of Biogeography, University of Bayreuth, Bayreuth, Germany
| | | | | | - Mary Lee Berdugo-Lattke
- Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogota, Colombia
- Fundación Natura, Bogota, Colombia
| | - Erika Berenguer
- Environmental Change Institute, University of Oxford, Oxford, UK
| | - Rodrigo Bergamin
- Laboratório de Estudos em Vegetação Campestre (LEVCamp), Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Joana Bergmann
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Marcos Bergmann Carlucci
- Laboratório de Ecologia Funcional de Comunidades (LABEF), Departamento de Botânica, Universidade Federal do Paraná, Curitiba, Brazil
| | - Logan Berner
- School of Informatics, Computing, and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
| | | | | | - Anne D Bjorkman
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Chris Blackman
- PIAF, INRA, Université Clermont-Auvergne, Clermont-Ferrand, France
| | - Carolina Blanco
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Benjamin Blonder
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Dana Blumenthal
- USDA-ARS Rangeland Resources & Systems Research Unit, Fort Collins, CO, USA
| | - Kelly T Bocanegra-González
- Grupo de Investigación en Biodiversidad y Dinámica de Ecosistémas Tropicales - Universidad del Tolima, Ibagué, Colombia
| | - Pascal Boeckx
- Isotope Bioscience Laboratory - ISOFYS, Ghent University, Gent, Belgium
| | - Stephanie Bohlman
- School of Forest Resources and Conservation, University of Florida, Gainesville, FL, USA
| | - Katrin Böhning-Gaese
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
- Department of Biological Sciences, Goethe Universität Frankfurt, Frankfurt am Main, Germany
| | - Laura Boisvert-Marsh
- Great Lakes Forestry Centre, Canadian Forest Service, Natural Resources Canada, Sault Ste. Marie, ON, Canada
| | - William Bond
- Department of Biological Sciences, University of Cape Town, Cape Town, South Africa
- SAEON Fynbos Node, Claremont, South Africa
| | | | - Arnoud Boom
- School of Geography, Geology and Environment, University of Leicester, Leicester, UK
| | - Coline C F Boonman
- Department of Environmental Science, Institute for Water and Wetland Research, Radboud University, Nijmegen, The Netherlands
| | - Kauane Bordin
- Laboratório de Ecologia Vegetal (LEVEG), Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Vanessa Boukili
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | | | - Sandra Bravo
- Facultad de Ciencias Forestales, Universidad Nacional de Santiago del Estero, Santiago del Estero, Argentina
| | - Marco Richard Brendel
- Institute of Landscape and Plant Ecology, University of Hohenheim, Stuttgart, Germany
| | | | - Kerry A Brown
- Department of Geography and Geology, Kingston University, Kingston upon Thames, UK
| | - Helge Bruelheide
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Federico Brumnich
- Conicet-Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
- Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral (FICH-UNL), Santa Fe, Argentina
| | - Hans Henrik Bruun
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - David Bruy
- AMAP, CIRAD, CNRS, IRD, INRA, Université de Montpellier, Montpellier, France
- AMAP, IRD, Herbier de Nouvelle-Calédonie, Nouméa, New Caledonia
| | | | | | | | - Robert Buitenwerf
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Aarhus, Denmark
- Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Bioscience, Aarhus University, Aarhus, Denmark
| | | | - Jana Bürger
- Faculty of Agricultural and Environmental Sciences, University of Rostock, Rostock, Germany
| | | | | | - Bradley J Butterfield
- Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, USA
| | - Chaeho Byun
- School of Civil and Environmental Engineering, Yonsei University, Seoul, Korea
| | - Marcia Marques
- Departamento de Botânica, SCB, UFPR - Federal University of Parana, Curitiba, Brazil
| | - Marina C Scalon
- Centro Politécnico, Universidade Federal do Paraná, Curitiba, Brazil
| | - Marco Caccianiga
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| | - Marc Cadotte
- University of Toronto Scarborough, Scarborough, ON, Canada
| | - Maxime Cailleret
- IRSTEA Aix-en-Provence, UMR RECOVER, Aix-Marseille University, Aix-en-Provence, France
- Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - James Camac
- Centre of Excellence for Bioscurity Risk Analysis, The University of Melbourne, Melbourne, Vic., Australia
| | | | | | - Giandiego Campetella
- School of Biosciences and Veterinary Medicine, Plant Diversity and Ecosystems Management Unit, University of Camerino, Camerino, Italy
| | - Juan Antonio Campos
- Department of Plant Biology and Ecology, University of the Basque Country UPV/EHU, Bilbao, Spain
| | - Laura Cano-Arboleda
- Fundación Natura, Bogota, Colombia
- Departamento de Geociencias y Medio Ambiente, Universidad Nacional de Colombia, Medellin, Colombia
| | - Roberto Canullo
- School of Biosciences and Veterinary Medicine, Plant Diversity and Ecosystems Management Unit, University of Camerino, Camerino, Italy
| | - Michele Carbognani
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Fabio Carvalho
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Fernando Casanoves
- CATIE-Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba, Costa Rica
| | | | - Jane A Catford
- Department of Geography, King's College London, London, UK
| | | | - Bruno E L Cerabolini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Marco Cervellini
- School of Biosciences and Veterinary Medicine, Plant Diversity and Ecosystems Management Unit, University of Camerino, Camerino, Italy
- BIGEA, Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | | | | | - F Stuart Chapin
- Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, USA
| | - Stefano Chelli
- School of Biosciences and Veterinary Medicine, Plant Diversity and Ecosystems Management Unit, University of Camerino, Camerino, Italy
| | | | - Anping Chen
- Department of Biology, Colorado State University, Fort Collins, CO, USA
| | - Paolo Cherubini
- WSL Swiss Federal Research Institute, Birmensdorf, Switzerland
- Faculty of Forestry, University of British Columbia, Vancouver, BC, Canada
| | | | - Brendan Choat
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | | | - Milan Chytrý
- Department of Botany and Zoology, Masaryk University, Brno, Czech Republic
| | | | - Lluís Coll
- Department of Agriculture and Forest Engineering (EAGROF), University of Lleida, Lleida, Spain
- Joint Research Unit CTFC - AGROTECNIO, Solsona, Spain
| | | | - Luisa Conti
- Faculty of Environmental Sciences, University of Life Sciences Prague, Praha-Suchdol, Czech Republic
- Institute of Botany, Czech Academy of Sciences, Třeboň, Czech Republic
| | - David Coomes
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | - Johannes H C Cornelissen
- Systems Ecology, Department of Ecological Science, Vrije Universiteit, Amsterdam, The Netherlands
| | - William K Cornwell
- School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | | | - Marie Coyea
- Faculté de foresterie, de géographie et de géomatique, Université Laval, Quebec, QC, Canada
| | | | - Dylan Craven
- Centro de Modelación y Monitoreo de Ecosistemas, Universidad Mayor, Santiago, Chile
| | - Joris P G M Cromsigt
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
- Centre for African Conservation Ecology, Department of Zoology, Nelson Mandela University, Port Elizabeth, South Africa
| | | | - Katarina Cufar
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Matthias Cuntz
- Université de Lorraine, AgroParisTech, INRAE, UMR Silva, Nancy, France
| | | | - Kyla M Dahlin
- Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, MI, USA
| | - Matteo Dainese
- Eurac Research, Institute for Alpine Environment, Bozen-Bolzano, Italy
| | - Igor Dalke
- Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Komi Republic, Russia
| | - Michele Dalle Fratte
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Anh Tuan Dang-Le
- University of Science - Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Jirí Danihelka
- Department of Botany and Zoology, Masaryk University, Brno, Czech Republic
- Institute of Botany, Czech Academy of Sciences, Třeboň, Czech Republic
| | - Masako Dannoura
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
| | - Samantha Dawson
- Swedish Species Information Centre, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Arend Jacobus de Beer
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
| | - Angel De Frutos
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Jonathan R De Long
- Department of Terrestrial Ecology, Netherlands Institute of Ecology, Wageningen, The Netherlands
| | - Benjamin Dechant
- Department Computational Landscape Ecology, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany
- Department Computational Hydrosystems, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany
- Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul, Republic of Korea
| | - Sylvain Delagrange
- Institute of Temperate Forest Sciences (ISFORT), Ripon, QC, Canada
- UQO, Department of Natural Sciences, Ripon, QC, Canada
| | - Nicolas Delpierre
- Ecologie Systématique Evolution, CNRS, AgroParisTech, University of Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Géraldine Derroire
- Cirad, UMR EcoFoG (Agroparistech, CNRS, INRA, Université des Antilles, Université de la Guyane), Kourou, French Guiana, France
| | - Arildo S Dias
- Institut für Physische Geographie, Biogeography and Biodiversity Lab, Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | | | | | - Mark Dobrowolski
- Iluka Resources, Perth, WA, Australia
- School of Biological Sciences, The University of Western Australia, Perth, WA, Australia
| | - Daniel Doktor
- Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Pavel Dřevojan
- Department of Botany and Zoology, Masaryk University, Brno, Czech Republic
| | - Ning Dong
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
| | | | - Stefan Dressler
- Department of Botany and Molecular Evolution, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
| | - Leandro Duarte
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Emilie Ducouret
- Cirad, UMR EcoFoG (Agroparistech, CNRS, INRA, Université des Antilles, Université de la Guyane), Kourou, French Guiana, France
| | - Stefan Dullinger
- Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | - Walter Durka
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Helmholtz Centre for Environmental Research - UFZ, Halle, Germany
| | - Remko Duursma
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | - Olga Dymova
- Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Komi Republic, Russia
| | - Anna E-Vojtkó
- Institute of Botany, Czech Academy of Sciences, Třeboň, Czech Republic
- Department of Botany, Faculty of Sciences, University of South Bohemia, Ceske Budejovice, Czech Republic
| | - Rolf Lutz Eckstein
- Department of Environmental and Life Sciences - Biology, Karlstad University, Karlstad, Sweden
| | - Hamid Ejtehadi
- Quantitative Plant Ecology and Biodiversity Research Laboratory, Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - James Elser
- Flathead Lake Biological Station, University of Montana, Polson, MT, USA
- School of Sustainability, Arizona State University, Tempe, AZ, USA
| | - Thaise Emilio
- Programa Nacional de Pós-Doutorado (PNPD), Programa de Pós Graduação em Ecologia, Institute of Biology, University of Campinas UNICAMP, Brazil
| | - Kristine Engemann
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Aarhus, Denmark
| | - Mohammad Bagher Erfanian
- Quantitative Plant Ecology and Biodiversity Research Laboratory, Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Alexandra Erfmeier
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute for Ecosystem Research/Geobotany, Kiel University, Kiel, Germany
| | - Adriane Esquivel-Muelbert
- School of Geography, University of Leeds, Leeds, UK
- School of Geography, Earth and Environmental Sciences - University of Birmingham, Birmingham, UK
| | - Gerd Esser
- Institute for Plant Ecology, Justus Liebig University, Giessen, Germany
| | - Marc Estiarte
- Spanish National Research Council - CSIC, Catalonia, Spain
- CREAF, Catalonia, Spain
| | | | | | - Jaime Fagúndez
- Campus da Zapateira, University of A Coruña, A Coruña, Spain
| | - Daniel S Falster
- Evolution & Ecology Research Centre, and School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Ying Fan
- Rutgers University, Piscataway, NJ, USA
| | | | - Emmanuele Farris
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Fatih Fazlioglu
- Faculty of Arts and Sciences, Molecular Biology and Genetics, Ordu University, Ordu, Turkey
| | - Yanhao Feng
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Fernando Fernandez-Mendez
- Grupo de Investigación en Biodiversidad y Dinámica de Ecosistémas Tropicales - Universidad del Tolima, Ibagué, Colombia
- Centro Forestal Tropical Bajo Calima, Universidad del Tolima, Buenaventura, Colombia
| | | | | | - Alessandra Fidelis
- Instituto de Biociências, Laboratory of Vegetation Ecology, Universidade Estadual Paulista (UNESP), Rio Claro, Brazil
| | - Bryan Finegan
- CATIE-Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba, Costa Rica
| | - Jennifer Firn
- Queensland University of Technology (QUT), Brisbane, Australia
| | | | - Dan F B Flynn
- Arnold Arboretum of Harvard University, Boston, MA, USA
| | - Veronika Fontana
- Eurac Research, Institute for Alpine Environment, Bozen-Bolzano, Italy
| | - Estelle Forey
- Laboratoire ECODIV URA, IRSTEA/EA 1293, Normandie Université, UFR ST, Université de Rouen, Mont Saint-Aignan, France
| | - Cristiane Forgiarini
- Department of Botany, Biosciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Louis François
- Unit of Research SPHERES, University of Liège, Liège, Belgium
| | - Marcelo Frangipani
- University of Guelph, Guelph, ON, Canada
- Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | - Grégoire T Freschet
- Theoretical and Experimental Ecology Station, CNRS, Paul Sabatier University Toulouse, Moulis, France
| | - Ellen L Fry
- School of Earth and Environment Science, University of Manchester, Manchester, UK
| | - Nikolaos M Fyllas
- Biodiversity Conservation Laboratory, Department of Environment, University of the Aegean, Mytilene, Greece
| | - Guilherme G Mazzochini
- Department of Plant Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Sophie Gachet
- Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
| | - Rachael Gallagher
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
| | - Gislene Ganade
- Universidade Federal do Rio Grande do Norte - UFRN, Natal, RN, Brazil
| | - Francesca Ganga
- Department of Life and Environmental Sciences, Botany Division, University of Cagliari, Cagliari, Italy
| | - Pablo García-Palacios
- Departamento de Biología y Geología, Física y Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Verónica Gargaglione
- Instituto Nacional de Tecnología Agropecuaria, Consejo Nacional de Invetigaciones Científicas y Técnicas, Universidad Nacional de La Patagonia Austral, Río Gallegos, Argentina
| | - Eric Garnier
- UMR 5175 CEFE, Univ. Montpellier, CNRS, EPHE, IRD, Univ. Paul Valéry, Montpellier, France
| | - Jose Luis Garrido
- Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Granada, Spain
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas, Sevilla, Spain
| | | | | | - David Gibson
- School of Biological Sciences, Southern Illinois University Carbondale, Carbondale, IL, USA
| | | | - Aelton Giroldo
- Instituto Federal de Educação Ciência e Tecnologia do Ceará, Crateús, Brazil
| | | | - Sean Gleason
- Water Management and Systems Research Unit, United States Department of Agriculture, Agricultural Research Service, Fort Collins, CO, USA
| | - Mariana Gliesch
- Institute of Integrative Biology, ETH Zürich (Swiss Federal Institute of Technology), Zürich, Switzerland
| | - Emma Goldberg
- Department of Ecology, Evolution & Behavior, University of Minnesota, Minneapolis, MN, USA
| | - Bastian Göldel
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Aarhus, Denmark
| | | | | | - Andrés González-Melo
- Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogota, Colombia
| | - Ana González-Robles
- Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Jaén, Spain
| | | | - Elena Granda
- Department of Life Sciences, University of Alcalá, Alcala de Henares, Spain
| | | | - Walton A Green
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | - Thomas Gregor
- Department of Botany and Molecular Evolution, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
| | - Nicolas Gross
- UCA, INRA, VetAgro Sup, UMR Ecosystème Prairial, Clermont-Ferrand, France
- Departamento de Biología y Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Greg R Guerin
- School of Biological Sciences, The University of Adelaide, Adelaide, SA, Australia
| | | | - Alvaro G Gutiérrez
- Departamento de Ciencias Ambientales y Recursos Naturales Renovables, Facultad de Ciencias Agronómicas, Universidad de Chile, Santiago, Chile
| | - Lillie Haddock
- Pacific Northwest National Laboratory, Joint Global Change Research Institute, College Park, MD, USA
| | - Anna Haines
- The University of Manchester, Manchester, UK
| | - Jefferson Hall
- Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
| | | | - Wenxuan Han
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Urumqi, China
| | | | - Wesley Hattingh
- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Joseph E Hawes
- Applied Ecology Research Group, School of Life Sciences, Anglia Ruskin University, Cambridge, UK
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Tianhua He
- School of Molecular and Life Sciences, Curtin University, Perth, WA, Australia
- College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA, Australia
| | - Pengcheng He
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | | | - Aveliina Helm
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Stefan Hempel
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Jörn Hentschel
- Herbarium Haussknecht, Friedrich-Schiller-Universität Jena, Jena, Germany
| | - Bruno Hérault
- Cirad, Université de Montpellier, Montpellier, France
- Institut National Polytehcnique Félix Houphouet-Boigny, INP-HB, Yamoussoukro, Ivory Coast
| | - Ana-Maria Hereş
- Department of Forest Sciences, Transilvania University of Brasov, Brasov, Romania
- BC3 - Basque Centre for Climate Change, Scientific Campus of the University of the Basque Country, Leioa, Spain
| | - Katharina Herz
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | | | - Thomas Hickler
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
- Department of Physical Geography, Goethe University, Frankfurt am Main, Germany
| | - Peter Hietz
- Institute of Botany, University of Natural Resources and Life Sciences, Vienna, Austria
| | | | - Andrew L Hipp
- The Morton Arboretum, Lisle, IL, USA
- The Field Museum, Chicago, IL, USA
| | | | - Maria Hock
- Institute for Ecosystem Research/Geobotany, Kiel University, Kiel, Germany
| | - James Aaron Hogan
- Department of Biological Sciences, Florida International University, Miami, FL, USA
- Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, TN
| | - Karen Holl
- University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Olivier Honnay
- Plant Conservation and Population Biology, Department of Biology, KU Leuven, Leuven, Belgium
- Division of Ecology, Evolution and Biodiversity Conservation, Heverlee, Belgium
| | | | - Enqing Hou
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Nate Hough-Snee
- Four Peaks Environmental Science and Data Solutions, Wenatchee, WA, USA
| | - Knut Anders Hovstad
- Department of Landscape and Biodiversity, Norwegian Institute of Bioeconomy Research (NIBIO), Ås, Norway
| | | | - Boris Igić
- University of Illinois at Chicago, Chicago, IL, USA
| | - Estela Illa
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Biodiversity Research Institute (IRBio), Universitat de Barcelona, Barcelona, Spain
| | | | - Masae Ishihara
- Ashiu Forest Research Station, Field Science Education and Research Center, Kyoto University, Kyoto, Japan
| | - Leonid Ivanov
- Institute Botanic Garden, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
- Tyumen State University, Tyumen, Russia
| | - Larissa Ivanova
- Institute Botanic Garden, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
- Tyumen State University, Tyumen, Russia
| | | | - Jordi Izquierdo
- Barcelona School of Agricultural Engineering, Universitat Politècnica de Catalunya, Catalonia, Spain
| | - Robert B Jackson
- Earth System Science Department, Stanford University, Stanford, CA, USA
| | - Benjamin Jackson
- Global Academy of Agriculture and Food Security, University of Edinburgh, Midlothian, Scotland
| | | | - Andrzej M Jagodzinski
- Institute of Dendrology, Polish Academy of Sciences, Kornik, Poland
- Department of Game Management and Forest Protection, Faculty of Forestry, Poznan University of Life Sciences, Poznan, Poland
| | - Ute Jandt
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Steven Jansen
- Institute of Systematic Botany and Ecology, Ulm University, Ulm, Germany
| | - Thomas Jenkins
- Department of Zoology, University of Oxford, Oxford, UK
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
| | - Anke Jentsch
- BayCEER, Department of Disturbance Ecology, University of Bayreuth, Bayreuth, Germany
| | | | - Guo-Feng Jiang
- Plant Ecophysiology & Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, Guangxi, PR China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, PR China
| | | | | | - Eric J Jokela
- School of Forest Resources and Conservation, University of Florida, Gainesville, FL, USA
| | | | | | - Grant Stuart Joseph
- Department of Zoology, School of Mathematical and Natural Science, University of Venda, Thohoyandou, South Africa
- Department of Biological Sciences, DST/NRF Centre of Excellence, Percy FitzPatrick Institute of African Ornithology, University of Cape Town, Rondebosch, South Africa
| | - Decky Junaedi
- Cibodas Botanical Garden - Indonesian Institute of Sciences (LIPI), Jl. Kebun Raya Cibodas, Cipanas, Indonesia
- Centre of Excellence for Biosecurity Risk Analysis (CEBRA), School Of Biosciences, University of Melbourne, Parkville, Vic., Australia
| | - Robert R Junker
- Evolutionary Ecology of Plants, Department Biology, Philipps-University Marburg, Marburg, Germany
- Department of Bioscience, University Salzburg, Salzburg, Austria
| | - Eric Justes
- PERSYST Department, CIRAD, Montpellier Cedex 5, France
| | - Richard Kabzems
- BC Ministry Forest, Lands, Natural Resource Operations and Rural Development, Dawson Creek, BC, Canada
| | | | - Zdenek Kaplan
- Institute of Botany, The Czech Academy of Sciences, Prùhonice, Czech Republic
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
| | - Teja Kattenborn
- Institute of Geography and Geoecology, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | | | - Elizabeth Kearsley
- CAVElab - Computational and Applied Vegetation Ecology, Ghent University, Ghent, Belgium
| | - Anne Kempel
- Institute of Plant Sciences, Bern, Switzerland
| | - Tanaka Kenzo
- Forestry and Forest Products Research Institute, Tsukuba, Japan
| | | | - Mohammed I Khalil
- Department of Biology, University of Garmian, Kalar, Iraq
- School of Biological Sciences and Center for Ecology, Southern Illinois University Carbondale, Carbondale, IL, USA
| | - Nicole L Kinlock
- Department of Ecology and Evolution, State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Wilm Daniel Kissling
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands
| | - Kaoru Kitajima
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
- University of Florida, Gainesville, FL, USA
- School of Molecular and Life Sciences, Curtin University, Perth, WA, Australia
| | - Thomas Kitzberger
- Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), CONICET, Bariloche, Argentina
- Departamento de Ecología, Universidad Nacional del Comahue, Bariloche, Argentina
| | - Rasmus Kjøller
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Tamir Klein
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Michael Kleyer
- Landscape Ecology Group, Institute of Biology and Environmental Sciences, University of Oldenburg, Oldenburg, Germany
| | - Jitka Klimešová
- Institute of Botany, Czech Academy of Sciences, Třeboň, Czech Republic
- Faculty of Sciences, Charles University, Praha, Czech Republic
| | - Joice Klipel
- Laboratório de Ecologia Vegetal (LEVEG), Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Brian Kloeppel
- Department of Geosciences and Natural Resources, Western Carolina University, Cullowhee, NC, USA
| | - Stefan Klotz
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Department of Community Ecology, Helmholtz Centre for Environmental Research-UFZ, Halle (Saale), Germany
| | - Johannes M H Knops
- Health and Environmental Sciences, Xi'an Jiaotong Liverpool University, Suzhou, Jiangsu, China
| | | | - Fumito Koike
- Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan
| | | | | | | | - Christian König
- Department of Geography, Humboldt University of Berlin, Berlin, Germany
- Biodiversity, Macroecology and Biogeography, University of Goettingen, Göttingen, Germany
| | - Nathan J B Kraft
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA
| | - Koen Kramer
- Wageningen University & Research, Wageningen, The Netherlands
- Land Life Company, Amsterdam, The Netherlands
| | - Holger Kreft
- Biodiversity, Macroecology and Biogeography, University of Goettingen, Göttingen, Germany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Goettingen, Göttingen, Germany
| | - Ingolf Kühn
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Helmholtz Centre for Environmental Research - UFZ, Halle, Germany
- Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Dushan Kumarathunge
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
- Plant Physiology Division, Coconut Research Institute of Sri Lanka, Lunuwila, Sri Lanka
| | - Jonas Kuppler
- Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany
| | - Hiroko Kurokawa
- Forestry and Forest Products Research Institute, Tsukuba, Japan
| | | | - Shem Kuyah
- Jomo Kenyatta University of Agriculture and Technology (JKUAT), Nairobi, Kenya
| | - Jean-Paul Laclau
- CIRAD, UMR Eco&Sols, Montpellier, France
- Eco&Sols, CIRAD, INRA, IRD, SupAgro, University of Montpellier, Montpellier, France
| | - Benoit Lafleur
- Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, QC, Canada
| | - Erik Lallai
- Department of Life and Environmental Sciences, Botany Division, University of Cagliari, Cagliari, Italy
| | - Eric Lamb
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Andrea Lamprecht
- GLORIA-Coordination, Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences & Department of Integrative Biology and Biodiversity Research, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Daniel J Larkin
- Department of Fisheries, Wildlife and Conservation Biology, University of Minnesota, St. Paul, MN, USA
| | | | | | - Guerric le Maire
- CIRAD, UMR Eco&Sols, Montpellier, France
- Eco&Sols, CIRAD, INRA, IRD, SupAgro, University of Montpellier, Montpellier, France
| | - Peter C le Roux
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
| | | | - Tali Lee
- University of Wisconsin Eau Claire, Eau Claire, WI, USA
| | - Frederic Lens
- Naturalis Biodiversity Center, Leiden, The Netherlands
| | - Simon L Lewis
- School of Geography, University of Leeds, Leeds, UK
- Department of Geography, University College London, London, UK
| | | | - Yuanzhi Li
- Sun Yat-sen University, Guangzhou, China
| | - Xine Li
- Yangzhou University, Yangzhou, Jiangsu, China
| | | | | | - Jun Ying Lim
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands
| | - Yan-Shih Lin
- Macquarie University, North Ryde, NSW, Australia
| | | | - Chunjiang Liu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P. R. China
- Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, Shanghai, P.R. China
| | - Daijun Liu
- School of Geography, Earth and Environmental Sciences - University of Birmingham, Birmingham, UK
| | | | | | - Joan Llusià
- Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Madelon Lohbeck
- Forest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, The Netherlands
- World Agroforestry (ICRAF), Nairobi, Kenya
| | - Álvaro López-García
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Dept. Animal Biology, Plant Biology and Ecology, University of Jaén, Jaén, Spain
| | | | - Zdeňka Lososová
- Department of Botany and Zoology, Masaryk University, Brno, Czech Republic
| | - Frédérique Louault
- UCA, INRA, VetAgro Sup, UMR Ecosystème Prairial, Clermont-Ferrand, France
| | - Balázs A Lukács
- Department for Tisza River Research, MTA Centre for Ecological Research, DRI, Debrecen, Hungary
| | - Petr Lukeš
- Global Change Research Institute AS CR, Brno, Czech Republic
| | - Yunjian Luo
- Department of Ecology, School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
- State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Michele Lussu
- Department of Life and Environmental Sciences, Botany Division, University of Cagliari, Cagliari, Italy
| | - Siyan Ma
- University of California at Berkeley, Berkeley, CA, USA
| | | | - Michelle Mack
- Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, USA
| | - Vincent Maire
- Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| | - Annikki Mäkelä
- Institute of Atmospheric and Earth System Research (INAR), University of Helsinki, Helsinki, Finland
| | | | | | - Azim Mallik
- Lakehead University, Thunder Bay, ON, Canada
| | - Peter Manning
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
| | - Stefano Manzoni
- Department of Physical Geography, Stockholm University, Stockholm, Sweden
- Bolin Centre for Climate Research, Stockholm, Sweden
| | - Zuleica Marchetti
- Conicet-Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
- Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral (FICH-UNL), Santa Fe, Argentina
| | - Luca Marchino
- CREA - Research Centre for Forestry and Wood, Arezzo, Italy
| | | | - Eric Marcon
- Cirad, UMR EcoFoG (Agroparistech, CNRS, INRA, Université des Antilles, Université de la Guyane), Kourou, French Guiana, France
| | - Michela Marignani
- Department of Life and Environmental Sciences, Botany Division, University of Cagliari, Cagliari, Italy
| | | | - Adam Martin
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, Canada
| | - Cristina Martínez-Garza
- Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Morelos, Mexico
| | | | - Tereza Mašková
- Faculty of Sciences, Charles University, Praha, Czech Republic
| | - Kelly Mason
- Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, UK
| | - Norman Mason
- Manaaki Whenua - Landcare Research, Hamilton, New Zealand
| | - Tara Joy Massad
- Department of Scientific Services, Gorongosa National Park, Beira, Sofala Province, Mozambique
| | - Jacynthe Masse
- Institut de recherche en biologie végétale, Montréal, QC, Canada
- Université de Montréal, Montréal, QC, Canada
| | - Itay Mayrose
- School of Plant Sciences and Food Security, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - James McCarthy
- School of Biological Sciences, The University of Queensland, Brisbane, Qld, Australia
- CSIRO, Canberra, ACT, Australia
- Manaaki Whenua - Landcare Research, Lincoln, New Zealand
| | | | | | - Ian R McFadden
- Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA
| | | | - Mara Y McPartland
- Department of Geography, Environment & Society, University of Minnesota, Minneapolis, MN, USA
| | | | - Belinda Medlyn
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | | | - Zia Mehrabi
- Institute for Resources Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada
| | - Patrick Meir
- Research School of Biology, The Australian National University, Canberra, ACT, Australia
- School of Geosciences, The University of Edinburgh, Edinburgh, UK
| | | | | | | | - Julie Messier
- Department of Biology, University of Waterloo, Waterloo, ON, Canada
| | - Ilona Mészáros
- Department of Botany, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
| | - Juha Metsaranta
- Natural Resources Canada, Canadian Forest Service, Northern Forestry Centre, Edmonton, AB, Canada
| | - Sean T Michaletz
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Chrysanthi Michelaki
- Biodiversity Conservation Laboratory, Department of Environment, University of the Aegean, Mytilene, Greece
| | - Svetlana Migalina
- Institute Botanic Garden, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
- Tyumen State University, Tyumen, Russia
| | | | | | - Vanessa Minden
- Institute of Biology and Environmental Sciences, University of Oldenburg, Oldenburg, Germany
- Department of Biology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ray Ming
- University of Illinois at Urbana-Champaign, Urbana-Champaign, IL, USA
| | | | - Angela T Moles
- Evolution & Ecology Research Centre, and School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Attila Molnár
- Department of Botany, University of Debrecen, Hungary
| | | | - Martin Molz
- Fundação Zoobotânica do Rio Grande do Sul, Porto Allegre, Brazil
| | | | - Arnaud Monty
- Gembloux Agro-Bio Tech, Biodiversity and landscape, University of Liège, Belgium
| | - Lenka Moravcová
- Department of Invasion Ecology, Institute of Botany, Czech Academy of Sciences, Průhonice, Czech Republic
| | - Alvaro Moreno-Martínez
- Numerical Terradynamic Simulation Group (NTSG), College of Forestry and Conservation, University of Montana, Missoula, USA
| | - Marco Moretti
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - Akira S Mori
- Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan
| | | | - Dave Morris
- Ontario Ministry of Natural Resources and Forestry, Centre for Northern Forest Ecosystem Research, Thunder Bay, ON, Canada
| | - Jane Morrison
- Universitat Politècnica de Catalunya, Castelldefels, Spain
| | - Ladislav Mucina
- Harry Butler Institute, Murdoch University, Perth, WA, Australia
- Dept of Geography & Environmental Studies, Stellenbosch University, Matieland, Stellenbosch, South Africa
| | - Sandra Mueller
- Geobotany, Faculty of Biology, University of Freiburg, Freiburg im Breisgau, Germany
| | | | - Sandra Cristina Müller
- Laboratório de Ecologia Vegetal, Departamento de Ecologia, Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - François Munoz
- Laboratoire d'Ecologie Alpine, Université Grenoble-Alpes, Grenoble Cedex 9, France
- French Institute of Pondicherry, Puducherry, India
| | | | - Randall W Myster
- Biology Department, Oklahoma State University, Oklahoma, OK, USA
| | | | - Shawna Naidu
- University of Illinois at Urbana-Champaign, Urbana-Champaign, IL, USA
| | - Ayyappan Narayanan
- Department of Ecology, French Institute of Pondicherry, Pondicherry, India
| | | | - Luka Negoita
- Galápagos Verde 2050, Charles Darwin Foundation, Charles Darwin Research Station, Galapagos, Ecuador
| | - Andrew S Nelson
- Forest, Rangeland, and Fire Sciences Department, University of Idaho, Moscow, ID, USA
| | - Eike Lena Neuschulz
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
| | - Jian Ni
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Georg Niedrist
- Eurac Research, Institute for Alpine Environment, Bozen-Bolzano, Italy
| | - Jhon Nieto
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogota, Colombia
- Universidad Distrital Francisco José de Caldas, Bogota, Colombia
| | - Ülo Niinemets
- Estonian University of Life Sciences, Tartu, Estonia
| | - Rachael Nolan
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | | | - Yann Nouvellon
- CIRAD, UMR Eco&Sols, Montpellier, France
- Eco&Sols, CIRAD, INRA, IRD, SupAgro, University of Montpellier, Montpellier, France
| | - Alexander Novakovskiy
- Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Komi Republic, Russia
| | - Kristin Odden Nystuen
- Faculty of Biosciences and Aquaculture, NORD University, Steinkjer, Norway
- Department of Biology, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | | | - Kevin O'Hara
- University of California at Berkeley, Berkeley, CA, USA
| | | | - Simon Oakley
- Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, UK
| | | | | | - Ricardo Oliveira
- Departamento de Botânica, Universidade Federal do Paraná, Curitiba, Brazil
| | - Kinga Öllerer
- Institute of Biology Bucharest, Romanian Academy, Bucharest, Romania
- Institute of Ecology and Botany, MTA Centre for Ecological Research, Vácrátót, Hungary
| | - Mark E Olson
- Instituto de Biología, Tercer Circuito s/n de Ciudad Universitaria, Mexico City, Mexico
- Universidad Nacional Autónoma de México, Coyoacán, Mexico
| | - Vladimir Onipchenko
- Department of Ecology and Plant Geography, Faculty of Biology, Moscow Lomonosov State University, Moscow, Russia
| | | | - Renske E Onstein
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Jenny C Ordonez
- Facultad de Ingeniería Agroindustrial, Universidad de las Américas, Quito, Equador
| | | | - Ivika Ostonen
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | | | - Sarah Otto
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
| | | | - Wim A Ozinga
- Wageningen Environmental Research, Wageningen, The Netherlands
| | - Anna T Pahl
- Restoration Ecology, Technische Universität München, München, Germany
| | | | | | | | | | | | - Marco Patacca
- Wageningen University & Research, Wageningen, The Netherlands
| | - Susana Paula
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chile
| | - Juraj Paule
- Department of Botany and Molecular Evolution, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
| | - Harald Pauli
- GLORIA-Coordination, Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences & Department of Integrative Biology and Biodiversity Research, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Juli G Pausas
- Desertification Research Center (CIDE-CSIC), Valencia, Spain
| | - Begoña Peco
- Departamento de Ecología, Centro de Investigación en Biodiversidad y Cambio Global (CIBC), Universidad Autónoma de Madrid, Madrid, Spain
| | - Josep Penuelas
- CREAF, Catalonia, Spain
- Global Ecology Unit CREAF-CSIC, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Pablo Luis Peri
- Instituto Nacional de Tecnología Agropecuaria (INTA), Río Gallegos, Santa Cruz, Argentina
- Universidad Nacional de la Patagonia Austral (UNPA), CONICET, Rio Gallegos, Argentina
| | | | - Alessandro Petraglia
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Any Mary Petritan
- National Institute for Research-Development in Forestry, Voluntari, Romania
| | | | - Simon Pierce
- Department of Agricultural and Environmental Sciences (DiSAA), University of Milan, Milano, Italy
| | - Valério D Pillar
- Department of Ecology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Jan Pisek
- Tartu Observatory, University of Tartu, Tartumaa, Estonia
| | | | - Hendrik Poorter
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
- Plant Sciences (IBG2), Forschungszentrum Jülich GmbH, Jülich, Germany
| | | | - Peter Poschlod
- Ecology and Conservation Biology, Institute of Plant Sciences, University of Regensburg, Regensburg, Germany
| | | | | | - A Shafer Powell
- Environmental Sciences Division & Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Sally A Power
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | - Andreas Prinzing
- Research Unit ECOBIO - Ecosystèmes, Biodiversité, Evolution, Université Rennes 1/CNRS, Rennes, France
| | | | - Petr Pyšek
- Department of Invasion Ecology, Institute of Botany, Czech Academy of Sciences, Průhonice, Czech Republic
- Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Valerie Raevel
- AMAP, CIRAD, CNRS, IRD, INRA, Université de Montpellier, Montpellier, France
- French Institute of Pondicherry, Puducherry, India
- CEFE, CNRS, EPHE, Université de Montpellier, Université Paul Valéry, Montpellier, France
| | - Anja Rammig
- TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | | | - Courtenay A Ray
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Peter B Reich
- Department of Forest Resources, University of Minnesota, St. Paul, MN, USA
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | | | - Douglas E B Reid
- Ontario Ministry of Natural Resources and Forestry, Centre for Northern Forest Ecosystem Research, Thunder Bay, ON, Canada
| | | | - Victor Resco de Dios
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, China
- Department of Crop and Forest Sciences & Agrotecnio Center, Universitat de Lleida, Lleida, Spain
| | | | | | | | - Matthias C Rillig
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
- Freie Universität Berlin, Berlin, Germany
| | - Fiamma Riviera
- The University of Western Australia, Crawley, WA, Australia
| | - Elisabeth M R Robert
- Centre for Ecological Research and Forestry Applications (CREAF), Cerdanyola del Vallès, Spain
- Ecology and Biodiversity, Vrije Universiteit Brussel, Brussels, Belgium
- Laboratory of Wood Biology and Xylarium, Royal Museum for Central-Africa (RMCA), Tervuren, Belgium
| | - Scott Roberts
- Department of Forestry, Mississippi State University, Starkville, MS, USA
| | - Bjorn Robroek
- School of Biological Sciences, University of Southampton, Southampton, UK
- Aquatic Ecology and Environmental Biology, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Adam Roddy
- School of Forestry & Environmental Studies, Yale University, New Haven, CT, USA
| | - Arthur Vinicius Rodrigues
- Programa de pós-graduação em Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Alistair Rogers
- Environmental and Climate Sciences Department, Brookhaven National Laboratory, NY, Upton, USA
| | - Emily Rollinson
- Department of Biological Sciences, East Stroudsburg University, East Stroudsburg, PA, USA
| | - Victor Rolo
- Forest Research Group, INDEHESA, University of Extremadura, Plasencia, Spain
| | - Christine Römermann
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Ecology and Evolution, Friedrich Schiller University Jena, Jena, Germany
| | - Dina Ronzhina
- Institute Botanic Garden, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
- Tyumen State University, Tyumen, Russia
| | - Christiane Roscher
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Physiological Diversity, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany
| | - Julieta A Rosell
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, Mexico
| | | | - Christian Rossi
- Remote Sensing Laboratories, Department of Geography, University of Zurich, Zurich, Switzerland
- Research Unit Community Ecology, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- Department of Research and Geoinformation, Swiss National Park, Chastè Planta-Wildenberg, Zernez, Switzerland
| | - David B Roy
- Centre for Ecology & Hydrology (CEH), Wallingford, Oxfordshire, UK
| | | | - Nadja Rüger
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
| | - Ricardo Ruiz-Peinado
- Departamento de Dinamica y Gestion Forestal, INIA-CIFOR, Madrid, Spain
- Sustainable Forest Management Research Institute, University of Valladolid-INIA, Madrid, Spain
| | - Sabine B Rumpf
- Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | | | - Masahiro Ryo
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
- Freie Universität Berlin, Berlin, Germany
| | - Lawren Sack
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA
| | - Angela Saldaña
- Universidad Nacional Autónoma de México, Coyoacán, Mexico
| | | | | | - Ignacio Santa-Regina
- Instituto de Recursos Naturales y Agrobiología de Salamanca (IRNASA-CSIC), Salamanca, Spain
| | - Ana Carolina Santacruz-García
- Conicet-Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
- Facultad de Ciencias Forestales, Universidad Nacional de Santiago del Estero, Santiago del Estero, Argentina
| | - Joaquim Santos
- Centre for Functional Ecology, Departamento de Ciências da Vida, Universidade de Coimbra, Coimbra, Portugal
| | - Jordi Sardans
- Global Ecology Unit CREAF-CSIC, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | | | - Matthias Schleuning
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
| | - Bernhard Schmid
- Department of Geography, University of Zurich, Zürich, Switzerland
| | - Marco Schmidt
- Senckenberg Biodiversität und Klima Forschungszentrum (SBiK-F), Frankfurt, Germany
- Palmengarten der Stadt Frankfurt am Main, Frankfurt, Germany
| | | | - Julio V Schneider
- Department of Botany and Molecular Evolution, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
- Entomology III, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
| | - Simon D Schowanek
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Aarhus, Denmark
- Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Bioscience, Aarhus University, Aarhus, Denmark
| | - Julian Schrader
- Biodiversity, Macroecology and Biogeography, University of Goettingen, Göttingen, Germany
| | | | - Bernhard Schuldt
- Julius-von-Sachs-Institute for Biological Sciences, Chair of Ecophysiology and Vegetation Ecology, University of Wuerzburg, Wuerzburg, Germany
| | - Frank Schurr
- Institute of Landscape and Plant Ecology, University of Hohenheim, Stuttgart, Germany
| | | | - Marina Semchenko
- Department of Earth and Environmental Sciences, University of Manchester, Manchester, UK
| | - Colleen Seymour
- South African National Biodiversity Institute, Pretoria, South Africa
| | - Julia C Sfair
- Federal University of Pernambuco, Recife, PE, Brazil
| | | | - Christine S Sheppard
- Institute of Landscape and Plant Ecology, University of Hohenheim, Stuttgart, Germany
| | | | - Satomi Shiodera
- Research Institute for Humanity and Nature, Kyoto, Japan
- Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan
| | - Bill Shipley
- Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | | | - Carlos Sierra
- Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Vasco Silva
- Centre for Applied Ecology "Professor Baeta Neves" (CEABN), School of Agriculture, University of Lisbon, Lisbon, Portugal
| | - Mateus Silva
- Department of Biology, Federal University of Lavras, Lavras, MG, Brazil
| | - Tommaso Sitzia
- Department Land, Environment, Agriculture and Forestry, Università degli Studi di Padova, Padua, Italy
| | - Henrik Sjöman
- Department of Landscape Architecture, Planning and Management, Swedish University of Agricultural Sciences, Alnarp, Sweden
- Gothenburg Botanical Garden, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, Gothenburg, Sweden
| | - Martijn Slot
- Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
| | | | - Darwin Sodhi
- Forest Sciences Centre, Faculty of Forestry and Conservation Science, University of British Columbia, Vancouver, BC, Canada
| | - Pamela Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Douglas Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Ben Somers
- Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium
| | | | | | | | | | - Alexandre F Souza
- Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Marko Spasojevic
- Department of Evolution, Ecology, and Organismal Biology, University of California Riverside, Riverside, CA, USA
| | | | - Amanda B Stan
- Department of Geography, Planning and Recreation, Northern Arizona University, Flagstaff, AZ, USA
| | - James Stegen
- Pacific Northwest National Laboratory, Richland, WA, USA
| | - Klaus Steinbauer
- GLORIA-Coordination, Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences & Department of Integrative Biology and Biodiversity Research, University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Jörg G Stephan
- Swedish Species Information Centre, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Frank Sterck
- Forest Ecology and Forest Management Group, Wageningen University, The Netherlands
| | - Dejan B Stojanovic
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | | | - Maria Laura Suarez
- Instituto de Investigaciones en Biodiversidad y Medioambiente-CONICET, Universidad Nacional del Comahue, Bariloche, Argentina
| | - Jens-Christian Svenning
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Aarhus, Denmark
- Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Bioscience, Aarhus University, Aarhus, Denmark
| | - Ivana Svitková
- Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Marek Svitok
- Department of Ecology and General Biology, Faculty of Ecology and Environmental Sciences, Technical University in Zvolen, Zvolen, Slovakia
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic
| | - Miroslav Svoboda
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic
| | - Emily Swaine
- School of Biological Sciences, University of Aberdeen, Aberdeen, UK
| | - Nathan Swenson
- Department of Biology, University of Maryland, College Park, MD, USA
| | - Marcelo Tabarelli
- Departamento de Botânica, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Kentaro Takagi
- Teshio Experimental Forest, Hokkaido University, Horonobe, Japan
| | - Ulrike Tappeiner
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
- Eurac Research, Institute for Alpine Environment, Bozen-Bolzano, Italy
| | - Rubén Tarifa
- Departamento de Ecología Funcional y Evolutiva, Estación Experimental de Zonas Áridas (CSIC), La Cañada de San Urbano, Spain
| | - Simon Tauugourdeau
- SELMET, CIRAD, INRA, Univ Montpellier, Montpellier SupAgro, France
- CIRAD-UMR SELMET-PZZS, Dakar, Senegal
| | | | - Mariska Te Beest
- Environmental Sciences, Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, The Netherlands
- Centre for African Conservation Ecology, Nelson Mandela University, Port Elizabeth, South Africa
| | - Leho Tedersoo
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
| | - Nelson Thiffault
- Natural Resources Canada, Canadian Wood Fibre Centre, Quebec, QC, Canada
| | - Dominik Thom
- Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT, USA
| | | | - Ken Thompson
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
| | | | - Wilfried Thuiller
- Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, LECA, Grenoble, France
| | - Lubomír Tichý
- Department of Botany and Zoology, Masaryk University, Brno, Czech Republic
| | - David Tissue
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | - Mark G Tjoelker
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | - David Yue Phin Tng
- Centre for Rainforest Studies, The School for Field Studies, Yungaburra, Qld, Australia
| | - Joseph Tobias
- Department of Life Sciences, Imperial College London, Silwood Park, Ascot, UK
| | - Péter Török
- MTA-DE Lendület Functional and Restoration Ecology Research Group, Debrecen, Hungary
- Department of Ecology, University of Debrecen, Debrecen, Hungary
| | - Tonantzin Tarin
- Department of Soil and Plant Sciences, University of Delaware, Newark, DE, USA
| | | | - Béla Tóthmérész
- MTA-TKI Biodiversity and Ecosystem Services Research Group, Debrecen, Hungary
| | - Martina Treurnicht
- SAEON Fynbos Node, Claremont, South Africa
- Department of Conservation Ecology and Entomology, Stellenbosch University, Matieland, South Africa
| | - Valeria Trivellone
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois, Champaign, IL, USA
| | - Franck Trolliet
- Unit for Modelling of Climate and Biogeochemical Cycles, UR-SPHERES, University of Liège, Liège, Belgique
| | - Volodymyr Trotsiuk
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic
- Institute of Agricultural Sciences, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - James L Tsakalos
- School of Biological Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Ioannis Tsiripidis
- School of Biology, Department of Botany, Aristotle University of Thessaloniki, Greece
| | - Niklas Tysklind
- CIRAD, UMR EcoFoG (Agroparistech, CNRS, INRA, Université des Antilles, Université de la Guyane), Kourou, France
| | | | - Vladimir Usoltsev
- Ural State Forest Engineering University, Ekaterinburg, Russia
- Botanical Garden of Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia
| | | | - Jamil Vaezi
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Jana Vamosi
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Peter M van Bodegom
- Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | - Michiel van Breugel
- College Environmental Studies, Yale University, New Haven, CT, USA
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Smithsonian Tropical Research Institute, Panama City, Panama
| | - Elisa Van Cleemput
- Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium
| | | | | | - Fons van der Plas
- Systematic Botany and Functional Biodiversity, Institute of Biology, Leipzig University, Leipzig, Germany
| | - Masha T van der Sande
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands
- Forest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, The Netherlands
- Institute for Global Ecology, Florida Institute of Technology, Melbourne, FL, USA
| | - Mark van Kleunen
- Department of Biology, University of Konstanz, Konstanz, Germany
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, China
| | | | - Mark Vanderwel
- Department of Biology, University of Regina, Regina, SK, Canada
| | - Kim André Vanselow
- Institute of Geography, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Angelica Vårhammar
- Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
| | - Laura Varone
- Department of Environmental Biology, Sapienza University of Rome, Rome, Italy
| | - Maribel Yesenia Vasquez Valderrama
- Universidad Distrital Francisco José de Caldas, Bogota, Colombia
- Laboratorio de invasiones Biológicas, Universidad de Concepcion, Concepcion, Chile
| | - Kiril Vassilev
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Mark Vellend
- Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Erik J Veneklaas
- School of Biological Sciences and School of Agriculture and Environment, The University of Western Australia, Crawley, WA, Australia
| | - Hans Verbeeck
- CAVElab - Computational and Applied Vegetation Ecology, Ghent University, Ghent, Belgium
| | - Kris Verheyen
- Department of Environment, Forest & Nature Lab, Ghent University, Gontrode-Melle, Belgium
| | | | - Ima Vieira
- Museu Paraense Emilio Goeldi, Belém, PA, Brazil
| | - Jaime Villacís
- Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas (ESPE), Sangolquí, Ecuador
| | - Cyrille Violle
- UMR 5175 CEFE, Univ. Montpellier, CNRS, EPHE, IRD, Univ. Paul Valéry, Montpellier, France
| | - Pandi Vivek
- Department of Botany, Goa University, Goa, India
- Department of Ecology and Environmental Sciences, Pondicherry University, Puducherry, India
| | - Katrin Wagner
- Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Matthew Waldram
- School of Geography, Geology and Environment, University of Leicester, Leicester, UK
| | - Anthony Waldron
- Zoology Department, Edward Grey Institute, Oxford University, Oxford, UK
- Department of Zoology, Cambridge University, Cambridge Conservation Initiative, Cambridge, UK
| | - Anthony P Walker
- Environmental Sciences Division & Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Martyn Waller
- Department of Geography and Geology, Kingston University, Kingston upon Thames, UK
| | - Gabriel Walther
- Institute of Ecology and Evolution, Friedrich Schiller University Jena, Jena, Germany
| | - Han Wang
- Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, China
| | - Feng Wang
- Institute of Desertification Studies, Chinese Academy of Forestry, Beijing, China
| | - Weiqi Wang
- Institute of Geography, Fujian Normal University, Fuzhou, China
| | - Harry Watkins
- Department of Landscape Architecture, University of Sheffield, Sheffield, UK
| | - James Watkins
- Department of Biology, Colgate University, Hamilton, NY, USA
| | - Ulrich Weber
- Max Planck Institute for Biogeochemistry, Jena, Germany
| | - James T Weedon
- Ecological Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Liping Wei
- Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, QC, Canada
| | - Patrick Weigelt
- Biodiversity, Macroecology and Biogeography, University of Goettingen, Göttingen, Germany
| | - Evan Weiher
- University of Wisconsin Eau Claire, Eau Claire, WI, USA
| | - Aidan W Wells
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
- Maritime and Science Technology Academy, Miami, FL, USA
| | | | - Elizabeth Wenk
- Evolution & Ecology Research Centre, and School of Biological, Earth and Environmental Sciences, UNSW Sydney, Sydney, NSW, Australia
| | - Mark Westoby
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
| | | | - Philip John White
- The James Hutton Institute, Dundee, UK
- King Saud University, Riyadh, Saudi Arabia
| | | | - Mathew Williams
- School of Geosciences, The University of Edinburgh, Edinburgh, UK
| | - Daniel E Winkler
- University of California - Irvine, Irvine, CA, USA
- Southwest Biological Science Center, U. S. Geological Survey, Moab, UT, USA
| | - Klaus Winter
- Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
| | - Chevonne Womack
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
| | - Ian J Wright
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
| | - S Joseph Wright
- Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
| | - Justin Wright
- Department of Biology, Duke University, Durham, NC, USA
| | - Bruno X Pinho
- Departamento de Botânica, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Fabiano Ximenes
- NSW Department of Primary Industries, Parramatta, NSW, Australia
| | | | - Keiko Yamaji
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Ruth Yanai
- SUNY-College of Environmental Science and Forestry, Syracuse, NY, USA
| | - Nikolay Yankov
- Botanical Garden of the Samara University, Samara, Russia
| | - Benjamin Yguel
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum National d'Histoire Naturelle, Centre National de la Recherche Scientifique, Sorbonne-Université, Paris, France
| | | | - Amy E Zanne
- Biological Sciences, George Washington University, Washington, DC, USA
| | | | - Yun-Peng Zhao
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jingming Zheng
- Forestry College, Beijing Forestry University, Beijing, China
| | - Ji Zheng
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P. R. China
- Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, Shanghai, P.R. China
| | | | - Chad R Zirbel
- Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN, USA
| | - Georg Zizka
- Department of Biological Sciences, Goethe Universität Frankfurt, Frankfurt am Main, Germany
- Department of Botany and Molecular Evolution, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
| | - Irié Casimir Zo-Bi
- Institut National Polytechnique Félix Houphouët-Boigny (INP-HB), Yamoussoukro, Côte d'Ivoire
| | - Gerhard Zotz
- Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
- Institute for Biology and Environmental Sciences, University Oldenburg, Oldenburg, Germany
| | - Christian Wirth
- Max Planck Institute for Biogeochemistry, Jena, Germany
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- University of Leipzig, Leipzig, Germany
| |
Collapse
|
19
|
Baldocchi D, Penuelas J. Natural carbon solutions are not large or fast enough. Glob Chang Biol 2019; 25:e5. [PMID: 30983106 DOI: 10.1111/gcb.14654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Affiliation(s)
- Dennis Baldocchi
- Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, California
| | - Josep Penuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Catalonia, Spain
- CREAF, Cerdanyola del Vallès, Catalonia, Spain
| |
Collapse
|
20
|
Baldocchi D, Penuelas J. The physics and ecology of mining carbon dioxide from the atmosphere by ecosystems. Glob Chang Biol 2019; 25:1191-1197. [PMID: 30588763 DOI: 10.1111/gcb.14559] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/06/2018] [Accepted: 12/19/2018] [Indexed: 05/22/2023]
Abstract
Reforesting and managing ecosystems have been proposed as ways to mitigate global warming and offset anthropogenic carbon emissions. The intent of our opinion piece is to provide a perspective on how well plants and ecosystems sequester carbon. The ability of individual plants and ecosystems to mine carbon dioxide from the atmosphere, as defined by rates and cumulative amounts, is limited by laws of physics and ecological principles. Consequently, the rates and amount of net carbon uptake are slow and low compared to the rates and amounts of carbon dioxide we release by fossil fuels combustion. Managing ecosystems to sequester carbon can also cause unintended consequences to arise. In this paper, we articulate a series of key take-home points. First, the potential amount of carbon an ecosystem can assimilate on an annual basis scales with absorbed sunlight, which varies with latitude, leaf area index and available water. Second, efforts to improve photosynthesis will come with the cost of more respiration. Third, the rates and amount of net carbon uptake are relatively slow and low, compared to the rates and amounts and rates of carbon dioxide we release by fossil fuels combustion. Fourth, huge amounts of land area for ecosystems will be needed to be an effective carbon sink to mitigate anthropogenic carbon emissions. Fifth, the effectiveness of using this land as a carbon sink will depend on its ability to remain as a permanent carbon sink. Sixth, converting land to forests or wetlands may have unintended costs that warm the local climate, such as changing albedo, increasing surface roughness or releasing other greenhouse gases. We based our analysis on 1,163 site-years of direct eddy covariance measurements of gross and net carbon fluxes from 155 sites across the globe.
Collapse
Affiliation(s)
- Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, California
| | - Josep Penuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Catalonia, Spain
| |
Collapse
|
21
|
Keenan TF, Migliavacca M, Papale D, Baldocchi D, Reichstein M, Torn M, Wutzler T. Widespread inhibition of daytime ecosystem respiration. Nat Ecol Evol 2019; 3:407-415. [PMID: 30742107 PMCID: PMC6421340 DOI: 10.1038/s41559-019-0809-2] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 12/12/2018] [Indexed: 11/22/2022]
Abstract
The global land surface absorbs about a third of anthropogenic emissions each year, due to the difference between two key processes: ecosystem photosynthesis and respiration. Despite the importance of these two processes, it is not possible to measure either at the ecosystem scale during the daytime. Eddy-covariance measurements are widely used as the closest 'quasi-direct' ecosystem-scale observation from which to estimate ecosystem photosynthesis and respiration. Recent research, however, suggests that current estimates may be biased by up to 25%, due to a previously unaccounted for process: the inhibition of leaf respiration in the light. Yet the extent of inhibition remains debated, and implications for estimates of ecosystem-scale respiration and photosynthesis remain unquantified. Here, we quantify an apparent inhibition of daytime ecosystem respiration across the global FLUXNET eddy-covariance network and identify a pervasive influence that varies by season and ecosystem type. We develop partitioning methods that can detect an apparent ecosystem-scale inhibition of daytime respiration and find that diurnal patterns of ecosystem respiration might be markedly different than previously thought. The results call for the re-evaluation of global terrestrial carbon cycle models and also suggest that current global estimates of photosynthesis and respiration may be biased, some on the order of magnitude of anthropogenic fossil fuel emissions.
Collapse
Affiliation(s)
- Trevor F Keenan
- Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
- UC Berkeley, Berkeley, CA, USA.
| | | | - Dario Papale
- University of Tuscia, Viterbo, Italy
- Euro-Mediterranean Centre on Climate Change, Viterbo, Italy
| | | | | | - Margaret Torn
- Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | | |
Collapse
|
22
|
Helliker BR, Song X, Goulden ML, Clark K, Bolstad P, Munger JW, Chen J, Noormets A, Hollinger D, Wofsy S, Martin T, Baldocchi D, Euskirchenn E, Desai A, Burns SP. Assessing the interplay between canopy energy balance and photosynthesis with cellulose δ18O: large-scale patterns and independent ground-truthing. Oecologia 2018; 187:995-1007. [DOI: 10.1007/s00442-018-4198-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 06/05/2018] [Indexed: 10/28/2022]
|
23
|
Pastorello G, Papale D, Chu H, Trotta C, Agarwal D, Canfora E, Baldocchi D, Torn M. A New Data Set to Keep a Sharper Eye on Land-Air Exchanges. ACTA ACUST UNITED AC 2017. [DOI: 10.1029/2017eo071597] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
FLUXNET15, the latest update of the longest global record of ecosystem carbon, water, and energy fluxes, features improved data quality, new data products, and more open data sharing policies.
Collapse
|
24
|
Abstract
A growing literature is reporting on how the terrestrial carbon cycle is experiencing year-to-year variability because of climate anomalies and trends caused by global change. As CO
2 concentration records in the atmosphere exceed 50 years and as satellite records reach over 30 years in length, we are becoming better able to address carbon cycle variability and trends. Here we review how variable the carbon cycle is, how large the trends in its gross and net fluxes are, and how well the signal can be separated from noise. We explore mechanisms that explain year-to-year variability and trends by deconstructing the global carbon budget. The CO
2 concentration record is detecting a significant increase in the seasonal amplitude between 1958 and now. Inferential methods provide a variety of explanations for this result, but a conclusive attribution remains elusive. Scientists have reported that this trend is a consequence of the greening of the biosphere, stronger northern latitude photosynthesis, more photosynthesis by semi-arid ecosystems, agriculture and the green revolution, tropical temperature anomalies, or increased winter respiration. At the global scale, variability in the terrestrial carbon cycle can be due to changes in constituent fluxes, gross primary productivity, plant respiration and heterotrophic (microbial) respiration, and losses due to fire, land use change, soil erosion, or harvesting. It remains controversial whether or not there is a significant trend in global primary productivity (due to rising CO
2, temperature, nitrogen deposition, changing land use, and preponderance of wet and dry regions). The degree to which year-to-year variability in temperature and precipitation anomalies affect global primary productivity also remains uncertain. For perspective, interannual variability in global gross primary productivity is relatively small (on the order of 2 Pg-C y
-1) with respect to a large and uncertain background (123 +/- 4 Pg-C y
-1), and detected trends in global primary productivity are even smaller (33 Tg-C y
-2). Yet residual carbon balance methods infer that the terrestrial biosphere is experiencing a significant and growing carbon sink. Possible explanations for this large and growing net land sink include roles of land use change and greening of the land, regional enhancement of photosynthesis, and down regulation of plant and soil respiration with warming temperatures. Longer time series of variables needed to provide top-down and bottom-up assessments of the carbon cycle are needed to resolve these pressing and unresolved issues regarding how, why, and at what rates gross and net carbon fluxes are changing.
Collapse
Affiliation(s)
- Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, USA
| | - Youngryel Ryu
- Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul, Korea, South
| | - Trevor Keenan
- Earth and Environmental Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| |
Collapse
|
25
|
Knox SH, Sturtevant C, Matthes JH, Koteen L, Verfaillie J, Baldocchi D. Agricultural peatland restoration: effects of land-use change on greenhouse gas (CO2 and CH4) fluxes in the Sacramento-San Joaquin Delta. Glob Chang Biol 2015; 21:750-765. [PMID: 25229180 DOI: 10.1111/gcb.12745] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 08/11/2014] [Indexed: 06/03/2023]
Abstract
Agricultural drainage of organic soils has resulted in vast soil subsidence and contributed to increased atmospheric carbon dioxide (CO2) concentrations. The Sacramento-San Joaquin Delta in California was drained over a century ago for agriculture and human settlement and has since experienced subsidence rates that are among the highest in the world. It is recognized that drained agriculture in the Delta is unsustainable in the long-term, and to help reverse subsidence and capture carbon (C) there is an interest in restoring drained agricultural land-use types to flooded conditions. However, flooding may increase methane (CH4) emissions. We conducted a full year of simultaneous eddy covariance measurements at two conventional drained agricultural peatlands (a pasture and a corn field) and three flooded land-use types (a rice paddy and two restored wetlands) to assess the impact of drained to flooded land-use change on CO2 and CH4 fluxes in the Delta. We found that the drained sites were net C and greenhouse gas (GHG) sources, releasing up to 341 g C m(-2) yr(-1) as CO2 and 11.4 g C m(-2) yr(-1) as CH4. Conversely, the restored wetlands were net sinks of atmospheric CO2, sequestering up to 397 g C m(-2) yr(-1). However, they were large sources of CH4, with emissions ranging from 39 to 53 g C m(-2) yr(-1). In terms of the full GHG budget, the restored wetlands could be either GHG sources or sinks. Although the rice paddy was a small atmospheric CO2 sink, when considering harvest and CH4 emissions, it acted as both a C and GHG source. Annual photosynthesis was similar between sites, but flooding at the restored sites inhibited ecosystem respiration, making them net CO2 sinks. This study suggests that converting drained agricultural peat soils to flooded land-use types can help reduce or reverse soil subsidence and reduce GHG emissions.
Collapse
Affiliation(s)
- Sara Helen Knox
- Ecosystem Science Division, Department of Environmental Science, Policy and Management, University of California at Berkeley, Berkeley, CA, USA
| | | | | | | | | | | |
Collapse
|
26
|
Baldocchi D. Measuring fluxes of trace gases and energy between ecosystems and the atmosphere - the state and future of the eddy covariance method. Glob Chang Biol 2014; 20:3600-3609. [PMID: 24890749 DOI: 10.1111/gcb.12649] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 05/20/2014] [Indexed: 06/03/2023]
Abstract
The application of the eddy covariance flux method to measure fluxes of trace gas and energy between ecosystems and the atmosphere has exploded over the past 25 years. This opinion paper provides a perspective on the contributions and future opportunities of the eddy covariance method. First, the paper discusses the pros and cons of this method relative to other methods used to measure the exchange of trace gases between ecosystems and the atmosphere. Second, it discusses how the use of eddy covariance method has grown and evolved. Today, more than 400 flux measurement sites are operating world-wide and the duration of the time series exceed a decade at dozens of sites. Networks of tower sites now enable scientists to ask scientific questions related to climatic and ecological gradients, disturbance, changes in land use, and management. The paper ends with discussions on where the field of flux measurement is heading. Topics discussed include role of open access data sharing and data mining, in this new era of big data, and opportunities new sensors that measure a variety of trace gases, like volatile organic carbon compounds, methane and nitrous oxide, and aerosols, may yield.
Collapse
Affiliation(s)
- Dennis Baldocchi
- Department of Environmental Science, Policy and Management, University of California, Berkeley, 130 Mulford Hall, Berkeley, CA, 95720, USA
| |
Collapse
|
27
|
Baldocchi D, Reichstein M, Papale D, Koteen L, Vargas R, Agarwal D, Cook R. The role of trace gas flux networks in the biogeosciences. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012eo230001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
28
|
Detto M, Molini A, Katul G, Stoy P, Palmroth S, Baldocchi D. Causality and persistence in ecological systems: a nonparametric spectral granger causality approach. Am Nat 2012; 179:524-35. [PMID: 22437181 DOI: 10.1086/664628] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Abstract Directionality in coupling, defined as the linkage relating causes to their effects at a later time, can be used to explain the core dynamics of ecological systems by untangling direct and feedback relationships between the different components of the systems. Inferring causality from measured ecological variables sampled through time remains a formidable challenge further made difficult by the action of periodic drivers overlapping the natural dynamics of the system. Periodicity in the drivers can often mask the self-sustained oscillations originating from the autonomous dynamics. While linear and direct causal relationships are commonly addressed in the time domain, using the well-established machinery of Granger causality (G-causality), the presence of periodic forcing requires frequency-based statistics (e.g., the Fourier transform), able to distinguish coupling induced by oscillations in external drivers from genuine endogenous interactions. Recent nonparametric spectral extensions of G-causality to the frequency domain pave the way for the scale-by-scale decomposition of causality, which can improve our ability to link oscillatory behaviors of ecological networks to causal mechanisms. The performance of both spectral G-causality and its conditional extension for multivariate systems is explored in quantifying causal interactions within ecological networks. Through two case studies involving synthetic and actual time series, it is demonstrated that conditional G-causality outperforms standard G-causality in identifying causal links and their concomitant timescales.
Collapse
Affiliation(s)
- Matteo Detto
- Smithsonian Tropical Resource Institute, Apartado Postal 0843-03092 Balboa, Ancon, Panama.
| | | | | | | | | | | |
Collapse
|
29
|
|
30
|
Beer C, Reichstein M, Tomelleri E, Ciais P, Jung M, Carvalhais N, Rödenbeck C, Arain MA, Baldocchi D, Bonan GB, Bondeau A, Cescatti A, Lasslop G, Lindroth A, Lomas M, Luyssaert S, Margolis H, Oleson KW, Roupsard O, Veenendaal E, Viovy N, Williams C, Woodward FI, Papale D. Terrestrial gross carbon dioxide uptake: global distribution and covariation with climate. Science 2010; 329:834-8. [PMID: 20603496 DOI: 10.1126/science.1184984] [Citation(s) in RCA: 711] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Terrestrial gross primary production (GPP) is the largest global CO(2) flux driving several ecosystem functions. We provide an observation-based estimate of this flux at 123 +/- 8 petagrams of carbon per year (Pg C year(-1)) using eddy covariance flux data and various diagnostic models. Tropical forests and savannahs account for 60%. GPP over 40% of the vegetated land is associated with precipitation. State-of-the-art process-oriented biosphere models used for climate predictions exhibit a large between-model variation of GPP's latitudinal patterns and show higher spatial correlations between GPP and precipitation, suggesting the existence of missing processes or feedback mechanisms which attenuate the vegetation response to climate. Our estimates of spatially distributed GPP and its covariation with climate can help improve coupled climate-carbon cycle process models.
Collapse
Affiliation(s)
- Christian Beer
- Biogeochemical Model-Data Integration Group, Max Planck Institute for Biogeochemistry, 07745 Jena, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
McDowell N, Baldocchi D, Barbour M, Bickford C, Cuntz M, Hanson D, Knohl A, Powers H, Rahn T, Randerson J, Riley WJ, Still C, Tu K, Walcroft A. Understanding the Stable Isotope Composition of Biosphere-Atmosphere CO2Exchange. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008eo100002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
32
|
Sundareshwar PV, Murtugudde R, Srinivasan G, Singh S, Ramesh KJ, Ramesh R, Verma SB, Agarwal D, Baldocchi D, Baru CK, Baruah KK, Chowdhury GR, Dadhwal VK, Dutt CBS, Fuentes J, Gupta PK, Hargrove WW, Howard M, Jha CS, Lal S, Michener WK, Mitra AP, Morris JT, Myneni RR, Naja M, Nemani R, Purvaja R, Raha S, Vanan SKS, Sharma M, Subramaniam A, Sukumar R, Twilley RR, Zimmerman PR. Environmental Monitoring Network for India. Science 2007; 316:204-5. [PMID: 17431156 DOI: 10.1126/science.1137417] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- P V Sundareshwar
- Institute of Atmospheric Sciences, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Baldocchi D, Tang J, Xu L. How switches and lags in biophysical regulators affect spatial-temporal variation of soil respiration in an oak-grass savanna. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jg000063] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dennis Baldocchi
- Ecosystem Sciences Division, Department of Environmental Science, Policy and Management; University of California; Berkeley California USA
| | - Jianwu Tang
- Ecosystem Sciences Division, Department of Environmental Science, Policy and Management; University of California; Berkeley California USA
| | - Liukang Xu
- Ecosystem Sciences Division, Department of Environmental Science, Policy and Management; University of California; Berkeley California USA
| |
Collapse
|
34
|
|
35
|
Baldocchi D, Xu L. Carbon exchange of deciduous broadleaved forests in temperate and Mediterranean regions. SEB Exp Biol Ser 2005:187-215. [PMID: 17633036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Affiliation(s)
- Dennis Baldocchi
- Department of Environmental Science, University of California, Berkeley, USA
| | | |
Collapse
|
36
|
Wilson KB, Baldocchi D, Falge E, Aubinet M, Berbigier P, Bernhofer C, Dolman H, Field C, Goldstein A, Granier A, Hollinger D, Katul G, Law BE, Meyers T, Moncrieff J, Monson R, Tenhunen J, Valentini R, Verma S, Wofsy S. Diurnal centroid of ecosystem energy and carbon fluxes at FLUXNET sites. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001349] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kell B. Wilson
- Atmospheric Turbulence and Diffusion Division, NOAA; Oak Ridge Tennessee USA
| | - Dennis Baldocchi
- ESPM, University of California at Berkeley; Berkeley California USA
| | - Eva Falge
- Pflanzen-ekologie; University Bayreuth; Bayreuth Germany
| | - Marc Aubinet
- Unite de Physique; Faculte des Sciences Agronomiques de Gembloux; Gembloux Belgium
| | - Paul Berbigier
- Unite de Bioclimatologie; INRA Bourdeaux; Gazinet France
| | | | - Han Dolman
- Department of GeoEnvironmental Sciences, Faculty of Earth and Life Sciences; Vrije Universiteit; Amsterdam Netherlands
| | - Chris Field
- Department of Plant Biology; Carnegie Institution of Washington; Stanford California USA
| | - Allen Goldstein
- ESPM, University of California at Berkeley; Berkeley California USA
| | - Andre Granier
- Unite Ecophysiologie Forestieres; Institut Nationale de la Recherche Agronomique; Champenoux France
| | - Dave Hollinger
- USDA Forest Service; Northeastern Forest Experiment Station; Durham New Hampshire USA
| | - Gabriel Katul
- School of the Environment; Duke University; Durham North Carolina USA
| | - B. E. Law
- College of Forestry; Oregon State University; Corvallis Oregon USA
| | - Tilden Meyers
- Atmospheric Turbulence and Diffusion Division, NOAA; Oak Ridge Tennessee USA
| | - John Moncrieff
- Department of Ecology and Environmental Research; University of Edinburgh; Edinburgh UK
| | - Russ Monson
- DEPOB, University of Colorado; Boulder Colorado USA
| | - John Tenhunen
- Pflanzen-ekologie; University Bayreuth; Bayreuth Germany
| | - Riccardo Valentini
- Department of Forest Science and Resources; University of Tuscia; Viterbo Italy
| | - Shashi Verma
- School of Natural Resource Sciences; University of Nebraska; Lincoln Nebraska USA
| | - Steve Wofsy
- Department of Earth and Planetary Sciences; Harvard University; Cambridge Massachusetts USA
| |
Collapse
|
37
|
Baldocchi D. Modeling plant history. Trends Ecol Evol 2002. [DOI: 10.1016/s0169-5347(02)02546-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
38
|
Gu L, Baldocchi D, Verma SB, Black TA, Vesala T, Falge EM, Dowty PR. Advantages of diffuse radiation for terrestrial ecosystem productivity. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001242] [Citation(s) in RCA: 421] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lianhong Gu
- Ecosystem Science Division, Department of Environmental Science, Policy and Management; University of California; Berkeley California USA
| | - Dennis Baldocchi
- Ecosystem Science Division, Department of Environmental Science, Policy and Management; University of California; Berkeley California USA
| | - Shashi B. Verma
- School of Natural Resource Sciences; University of Nebraska; Lincoln Nebraska USA
| | - T. A. Black
- Faculty of Agricultural Sciences; University of British Columbia; Vancouver British Columbia Canada
| | - Timo Vesala
- Department of Physical Sciences; University of Helsinki; Helsinki Finland
| | - Eva M. Falge
- Department of Plant Ecology; University of Bayreuth; Bayreuth Germany
| | - Pete R. Dowty
- Department of Environmental Sciences; University of Virginia; Charlottesville Virginia USA
| |
Collapse
|
39
|
Abstract
The boreal forest, one of the world's larger biomes, is distinct from other biomes because it experiences a short growing season and extremely cold winter temperatures. Despite its size and impact on the earth's climate system, measurements of mass and energy exchange have been rare until the past five years. This paper overviews results of recent and comprehensive field studies conducted in Canada, Siberia and Scandinavia on energy exchanges between boreal forests and the atmosphere. How the boreal biosphere and atmosphere interact to affect the interception of solar energy and how solar energy is used to evaporate water and heat the air and soil is examined in detail. Specifically, we analyse the magnitudes, temporal and spatial patterns and controls of solar energy, moisture and sensible heat fluxes across the land-atmosphere interface. We interpret and synthesize field data with the aid of a soil-vegetation-atmosphere transfer model, which considers the coupling of the energy and carbon fluxes and nutrient status. Low precipitation and low temperatures limit growth of many boreal forests. These factors restrict photosynthetic capacity and lower root hydraulic conductivity and stomatal conductance of the inhabitant forests. In such circumstances, these factors interact to form a canopy that has a low leaf area index and exerts a significant resistance to evaporation. Conifer forests, growing on upland soils, for example, evaporate at rates between 25 and 75% of equilibrium evaporation and lose less than 2.5 mm day-1 of water. The open nature of many boreal conifer forest stands causes a disproportionate amount of energy exchange to occur at the soil surface. The climatic and physiological factors that yield relatively low rates of evaporation over conifer stands also cause high rates of sensible heat exchange and the diurnal development of deep planetary boundary layers. In contrast, evaporation from broad-leaved aspen stands and fen/wetlands approach equilibrium evaporation rates and lose up to 6 mm day-1 .
Collapse
Affiliation(s)
- Dennis Baldocchi
- Department of Environmental Science, Policy and Management, 151, Hilgard Hall, University of California, Berkeley, CA 94720, USA
| | | | - T A Black
- Faculty of Agricultural Sciences, University of British Columbia, 139-2357 Main Mall, Vancouver, BC, Canada V6T 1Z4
| | - Paul Jarvis
- Institute of Ecology and Resource Management, Schools of Forestry and Ecological Science, University of Edinburgh, Darwin Building, King's Buildings, Mayfield Rd, Edinburgh EH9 3JU, UK
| |
Collapse
|
40
|
Chapin FS, Mcguire AD, Randerson J, Pielke R, Baldocchi D, Hobbie SE, Roulet N, Eugster W, Kasischke E, Rastetter EB, Zimov SA, Running SW. Arctic and boreal ecosystems of western North America as components of the climate system. Glob Chang Biol 2000; 6:211-223. [PMID: 35026938 DOI: 10.1046/j.1365-2486.2000.06022.x] [Citation(s) in RCA: 135] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Synthesis of results from several Arctic and boreal research programmes provides evidence for the strong role of high-latitude ecosystems in the climate system. Average surface air temperature has increased 0.3 °C per decade during the twentieth century in the western North American Arctic and boreal forest zones. Precipitation has also increased, but changes in soil moisture are uncertain. Disturbance rates have increased in the boreal forest; for example, there has been a doubling of the area burned in North America in the past 20 years. The disturbance regime in tundra may not have changed. Tundra has a 3-6-fold higher winter albedo than boreal forest, but summer albedo and energy partitioning differ more strongly among ecosystems within either tundra or boreal forest than between these two biomes. This indicates a need to improve our understanding of vegetation dynamics within, as well as between, biomes. If regional surface warming were to continue, changes in albedo and energy absorption would likely act as a positive feedback to regional warming due to earlier melting of snow and, over the long term, the northward movement of treeline. Surface drying and a change in dominance from mosses to vascular plants would also enhance sensible heat flux and regional warming in tundra. In the boreal forest of western North America, deciduous forests have twice the albedo of conifer forests in both winter and summer, 50-80% higher evapotranspiration, and therefore only 30-50% of the sensible heat flux of conifers in summer. Therefore, a warming-induced increase in fire frequency that increased the proportion of deciduous forests in the landscape, would act as a negative feedback to regional warming. Changes in thermokarst and the aerial extent of wetlands, lakes, and ponds would alter high-latitude methane flux. There is currently a wide discrepancy among estimates of the size and direction of CO2 flux between high-latitude ecosystems and the atmosphere. These discrepancies relate more strongly to the approach and assumptions for extrapolation than to inconsistencies in the underlying data. Inverse modelling from atmospheric CO2 concentrations suggests that high latitudes are neutral or net sinks for atmospheric CO2 , whereas field measurements suggest that high latitudes are neutral or a net CO2 source. Both approaches rely on assumptions that are difficult to verify. The most parsimonious explanation of the available data is that drying in tundra and disturbance in boreal forest enhance CO2 efflux. Nevertheless, many areas of both tundra and boreal forests remain net sinks due to regional variation in climate and local variation in topographically determined soil moisture. Improved understanding of the role of high-latitude ecosystems in the climate system requires a concerted research effort that focuses on geographical variation in the processes controlling land-atmosphere exchange, species composition, and ecosystem structure. Future studies must be conducted over a long enough time-period to detect and quantify ecosystem feedbacks.
Collapse
Affiliation(s)
- F S Chapin
- Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99775, USA
| | - A D Mcguire
- US Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, University of Alaska, Fairbanks, AK 99775, USA
| | - J Randerson
- Department of Atmospheric Sciences, University of California, Berkeley, CA 94720, USA
| | - R Pielke
- Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - D Baldocchi
- Atmospheric Turbulence and Diffusion Division, PO Box 2456, Oak Ridge, TN 37831, USA
| | - S E Hobbie
- Department of Ecology, Evolution, and Behaviour, University of Minnesota, St. Paul MN 55108, USA
| | - N Roulet
- Department of Geography, McGill University, Montreal, Quebec, Canada H3A 2K6
| | - W Eugster
- Institute of Geography, University of Bern, CH-3012 Bern, Switzerland
| | - E Kasischke
- ERIM International, Inc., PO Box 134008, Ann Arbor, MI 48113-4008, USA
| | - E B Rastetter
- Ecosystem Center, Marine Biological Laboratory, Woods Hole, MA 02543, USA
| | - S A Zimov
- North-East Science Station, PO Box 18, Cherskii, Republic of Sakha (Yakutia), 678830 Russia, School of Forestry, University of Montana, Missoula, MT 59812-1063, USA
| | - S W Running
- North-East Science Station, PO Box 18, Cherskii, Republic of Sakha (Yakutia), 678830 Russia, School of Forestry, University of Montana, Missoula, MT 59812-1063, USA
| |
Collapse
|
41
|
Sellers PJ, Hall FG, Kelly RD, Black A, Baldocchi D, Berry J, Ryan M, Ranson KJ, Crill PM, Lettenmaier DP, Margolis H, Cihlar J, Newcomer J, Fitzjarrald D, Jarvis PG, Gower ST, Halliwell D, Williams D, Goodison B, Wickland DE, Guertin FE. BOREAS in 1997: Experiment overview, scientific results, and future directions. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/97jd03300] [Citation(s) in RCA: 376] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
42
|
Desjardins RL, MacPherson JI, Mahrt L, Schuepp P, Pattey E, Neumann H, Baldocchi D, Wofsy S, Fitzjarrald D, McCaughey H, Joiner DW. Scaling up flux measurements for the boreal forest using aircraft-tower combinations. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/97jd00278] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
43
|
Bonan GB, Davis KJ, Baldocchi D, Fitzjarrald D, Neumann H. Comparison of the NCAR LSM1 land surface model with BOREAS aspen and jack pine tower fluxes. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96jd03095] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
44
|
Lamb B, Pierce T, Baldocchi D, Allwine E, Dilts S, Westberg H, Geron C, Guenther A, Klinger L, Harley P, Zimmerman P. Evaluation of forest canopy models for estimating isoprene emissions. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96jd00056] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
45
|
Guenther A, Baugh W, Davis K, Hampton G, Harley P, Klinger L, Vierling L, Zimmerman P, Allwine E, Dilts S, Lamb B, Westberg H, Baldocchi D, Geron C, Pierce T. Isoprene fluxes measured by enclosure, relaxed eddy accumulation, surface layer gradient, mixed layer gradient, and mixed layer mass balance techniques. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96jd00697] [Citation(s) in RCA: 130] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
46
|
Abstract
Iterative solutions of coupled leaf photosynthesis and stomatal conductance equations sometimes yield bifurcated or chaotic solutions. An analytical solution for coupled leaf photosynthesis-stomatal conductance equations is preferred because an analytical model has specific and known roots, and partial derivatives can be taken to perform sensitivity analyses. I present an analytical solution for coupled leaf photosynthesis and stomatal conductance equations that are based on established biochemical and physiological theory.
Collapse
Affiliation(s)
- Dennis Baldocchi
- Atmospheric Turbulence and Diffusion Division, NOAA, P.O. Box 2456, Oak Ridge, TN 37831, USA
| |
Collapse
|
47
|
|