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Gupta J, Bai X, Liverman DM, Rockström J, Qin D, Stewart-Koster B, Rocha JC, Jacobson L, Abrams JF, Andersen LS, Armstrong McKay DI, Bala G, Bunn SE, Ciobanu D, DeClerck F, Ebi KL, Gifford L, Gordon C, Hasan S, Kanie N, Lenton TM, Loriani S, Mohamed A, Nakicenovic N, Obura D, Ospina D, Prodani K, Rammelt C, Sakschewski B, Scholtens J, Tharammal T, van Vuuren D, Verburg PH, Winkelmann R, Zimm C, Bennett E, Bjørn A, Bringezu S, Broadgate WJ, Bulkeley H, Crona B, Green PA, Hoff H, Huang L, Hurlbert M, Inoue CYA, Kılkış Ş, Lade SJ, Liu J, Nadeem I, Ndehedehe C, Okereke C, Otto IM, Pedde S, Pereira L, Schulte-Uebbing L, Tàbara JD, de Vries W, Whiteman G, Xiao C, Xu X, Zafra-Calvo N, Zhang X, Fezzigna P, Gentile G. A just world on a safe planet: a Lancet Planetary Health-Earth Commission report on Earth-system boundaries, translations, and transformations. Lancet Planet Health 2024; 8:e813-e873. [PMID: 39276783 DOI: 10.1016/s2542-5196(24)00042-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 12/09/2023] [Accepted: 03/08/2024] [Indexed: 09/17/2024]
Affiliation(s)
- Joyeeta Gupta
- Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, Netherlands; IHE-Delft Institute for Water Education, Delft, Netherlands
| | - Xuemei Bai
- Fenner School of Environment & Society, Australian National University, Canberra, ACT, Australia
| | - Diana M Liverman
- School of Geography, Development and Environment, University of Arizona, Tucson, AZ, USA
| | - Johan Rockström
- Potsdam Institute for Climate Impact Research, Leibniz Association, Potsdam, Germany; Institute of Environmental Science and Geography, University of Potsdam, Potsdam, Germany
| | - Dahe Qin
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; China Meteorological Administration, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Ben Stewart-Koster
- Australian Rivers Institute, Griffith University, Brisbane, QLD, Australia
| | - Juan C Rocha
- Future Earth Secretariat, Stockholm, Sweden; Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden.
| | | | - Jesse F Abrams
- Global Systems Institute, University of Exeter, Exeter, UK
| | - Lauren S Andersen
- Potsdam Institute for Climate Impact Research, Leibniz Association, Potsdam, Germany
| | - David I Armstrong McKay
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden; Global Systems Institute, University of Exeter, Exeter, UK; Georesilience Analytics, Leatherhead, UK
| | - Govindasamy Bala
- Center for Atmospheric and Oceanic Sciences, Indian Institute of Science, Bengaluru, India
| | - Stuart E Bunn
- Australian Rivers Institute, Griffith University, Brisbane, QLD, Australia
| | - Daniel Ciobanu
- Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, Netherlands
| | - Fabrice DeClerck
- EAT, Oslo, Norway; Alliance of Bioversity and CIAT, CGIAR, Montpellier, France
| | - Kristie L Ebi
- Center for Health & the Global Environment, University of Washington, Seattle, WA, USA
| | - Lauren Gifford
- School of Geography, Development and Environment, University of Arizona, Tucson, AZ, USA
| | - Christopher Gordon
- Institute for Environment and Sanitation Studies, University of Ghana, Legon, Ghana
| | - Syezlin Hasan
- Australian Rivers Institute, Griffith University, Brisbane, QLD, Australia
| | - Norichika Kanie
- Graduate School of Media and Governance, Keio University, Fujisawa, Japan
| | | | - Sina Loriani
- Potsdam Institute for Climate Impact Research, Leibniz Association, Potsdam, Germany
| | - Awaz Mohamed
- Functional Forest Ecology, University of Hamburg, Hamburg, Germany
| | | | - David Obura
- Coastal Oceans Research and Development in the Indian Ocean East Africa, Mombasa, Kenya
| | | | - Klaudia Prodani
- Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, Netherlands
| | - Crelis Rammelt
- Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, Netherlands
| | - Boris Sakschewski
- Potsdam Institute for Climate Impact Research, Leibniz Association, Potsdam, Germany
| | - Joeri Scholtens
- Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, Netherlands
| | - Thejna Tharammal
- Interdisciplinary Centre for Water Research, Indian Institute of Science, Bengaluru, India
| | - Detlef van Vuuren
- Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, Netherlands; PBL Netherlands Environmental Assessment Agency, The Hague, Netherlands
| | - Peter H Verburg
- Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland; Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Ricarda Winkelmann
- Potsdam Institute for Climate Impact Research, Leibniz Association, Potsdam, Germany; Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany
| | - Caroline Zimm
- International Institute for Applied Systems Analysis, Laxenburg, Austria
| | - Elena Bennett
- Bieler School of Environment and Department of Natural Resource Sciences, McGill University, Montreal, QC, Canada
| | - Anders Bjørn
- Centre for Absolute Sustainability and Section for Quantitative Sustainability Assessment, Department of Environmental and Resource Engineering, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Stefan Bringezu
- Center for Environmental Systems Research, University of Kassel, Kassel, Germany
| | | | - Harriet Bulkeley
- Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, Netherlands; Department of Geography, Durham University, Durham, UK
| | - Beatrice Crona
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden; Global Economic Dynamics and the Biosphere Programme, Royal Swedish Academy of Sciences, Stockholm, Sweden
| | - Pamela A Green
- Advanced Science Research Center at the Graduate Center, City University of New York, NY, USA
| | - Holger Hoff
- Wegener Center for Climate and Global Change, University of Graz, Graz, Austria
| | - Lei Huang
- National Climate Center, Beijing, China
| | - Margot Hurlbert
- Johnson-Shoyama Graduate School of Public Policy, University of Regina, Regina, SK, Canada
| | - Cristina Y A Inoue
- Center for Global Studies, Institute of International Relations, University of Brasília, Brasília, Brazil; Institute for Management Research, Radboud University, Nijmegen, Netherlands
| | - Şiir Kılkış
- Scientific and Technological Research Council of Turkey, Ankara, Türkiye
| | - Steven J Lade
- Fenner School of Environment & Society, Australian National University, Canberra, ACT, Australia; Future Earth Secretariat, Stockholm, Sweden; Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
| | - Jianguo Liu
- Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
| | - Imran Nadeem
- Institute of Meteorology and Climatology, Department of Ecosystem Management, Climate and Biodiversity, BOKU University, Vienna, Austria
| | - Christopher Ndehedehe
- Australian Rivers Institute, Griffith University, Brisbane, QLD, Australia; School of Environment & Science, Griffith University, Nathan, QLD, Australia
| | | | - Ilona M Otto
- Wegener Center for Climate and Global Change, University of Graz, Graz, Austria
| | - Simona Pedde
- Future Earth Secretariat, Stockholm, Sweden; Soil raphy and Landscape Group, Wageningen University & Research, Wageningen, Netherlands
| | - Laura Pereira
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden; Global Change Institute, University of the Witwatersrand, Johannesburg, South Africa
| | - Lena Schulte-Uebbing
- PBL Netherlands Environmental Assessment Agency, The Hague, Netherlands; Environmental Systems Analysis Group, Wageningen University & Research, Wageningen, Netherlands
| | - J David Tàbara
- Autonomous University of Barcelona, Barcelona, Spain; Global Climate Forum, Berlin, Germany
| | - Wim de Vries
- Environmental Systems Analysis Group, Wageningen University & Research, Wageningen, Netherlands
| | | | - Cunde Xiao
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China
| | - Xinwu Xu
- China Meteorological Administration, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Noelia Zafra-Calvo
- Basque Centre for Climate Change, Scientific Campus of the University of the Basque Country, Biscay, Spain
| | - Xin Zhang
- Appalachian Laboratory, University of Maryland Center for Environmental Science, Frostburg, MD, USA
| | - Paola Fezzigna
- Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, Netherlands
| | - Giuliana Gentile
- Amsterdam Institute for Social Science Research, University of Amsterdam, Amsterdam, Netherlands
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Araujo ECG, Silva TC, da Cunha Neto EM, Favarin JAS, da Silva Gomes JK, das Chagas KPT, Fiorelli EC, Sonsin AF, Maia E. Bioeconomy in the Amazon: Lessons and gaps from thirty years of non-timber forest products research. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 370:122420. [PMID: 39260283 DOI: 10.1016/j.jenvman.2024.122420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 08/31/2024] [Accepted: 09/03/2024] [Indexed: 09/13/2024]
Abstract
Non-timber forest products (NTFPs) play an essential role in the Amazon region, contributing to the integration between biodiversity conservation and the enhancement of the bioeconomy. This study has examined the scope of NTFP research in the Amazon and pinpointed areas lacking scientific insight. From the 219 publications initially identified, 146 satisfied established inclusion criteria based on the methodology employed and the results achieved. It was found that the inaugural publication indexed by Scopus on Amazonian NTFPs dates to 1992. It was found that the inaugural publication indexed by Scopus on Amazonian NTFPs dates to 1992. Despite the extensive body of research, there is a noticeable deficit in studies addressing legal and regulatory frameworks within the NTFP production chain and public policy development. Research has predominantly concentrated on production, distribution, management, and economic aspects, often neglecting the social, normative, and political dimensions. Advancing the bioeconomy value chains in the Amazon necessitates empowering local communities to derive economic benefits from biodiversity. However, recognizing the complexity of these communities' relationships with the forest is important. Their interaction with the forest extends beyond economic considerations, embracing cultural, subsistence, and spiritual connections. These insights underscore the necessity for a comprehensive and sustainable approach to NTFP management in the Amazon, ensuring that biodiversity conservation and local community empowerment are integrally pursued. This holistic perspective is vital for fostering a resilient bioeconomy in the region.
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Affiliation(s)
- Emmanoella Costa Guaraná Araujo
- Forest Engineering Academic Department, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil; Postgraduate Program in Environmental Sciences, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil; Ação Ecológica Guaporé - ECOPORÉ, Rolim de Moura and Porto Velho, Rondônia, Brazil.
| | - Thiago Cardoso Silva
- Forest Engineering Academic Department, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil; Postgraduate Program in Environmental Sciences, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil; Ação Ecológica Guaporé - ECOPORÉ, Rolim de Moura and Porto Velho, Rondônia, Brazil.
| | | | | | | | | | - Elaine Cosma Fiorelli
- Forest Engineering Academic Department, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil.
| | - Artur Falqueto Sonsin
- Forest Engineering Academic Department, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil; Postgraduate Program in Environmental Sciences, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil.
| | - Emanuel Maia
- Forest Engineering Academic Department, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil; Postgraduate Program in Environmental Sciences, Federal University of Rondônia, Rolim de Moura, Rondônia, Brazil; Ação Ecológica Guaporé - ECOPORÉ, Rolim de Moura and Porto Velho, Rondônia, Brazil.
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Liu YN, Fan ZX, Lin YX, Kaewmano A, Wei XL, Fu PL, Grießinger J, Bräuning A. Impact of extreme pre-monsoon drought on xylogenesis and intra-annual radial increments of two tree species in a tropical montane evergreen broad-leaved forest, southwest China. TREE PHYSIOLOGY 2024; 44:tpae086. [PMID: 39030688 PMCID: PMC11387012 DOI: 10.1093/treephys/tpae086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 07/03/2024] [Accepted: 07/17/2024] [Indexed: 07/21/2024]
Abstract
Tropical montane evergreen broad-leaved forests cover the majority of forest areas and have high carbon storage in Xishuangbanna, southwest China. However, stem radial growth dynamics and their correlations with climate factors have never been analyzed in this forest type. By combining bi-weekly microcoring and high-resolution dendrometer measurements, we monitored xylogenesis and stem radius variations of the deciduous species Betula alnoides Buch.-Ham. ex D. Don and the evergreen species Schima wallichii (DC.) Korth. We analyzed the relationships between weekly climate variables prior to sampling and the enlarging zone width or wall-thickening zone width, as well as weekly radial increments and climate factors during two consecutive years (2020 to 2021) showing contrasting hydrothermal conditions in the pre-monsoon season. In the year 2020, which was characterized by a warmer and drier pre-monsoon season, the onset of xylogenesis and radial increments of B. alnoides and S. wallichii were delayed by three months and one month, respectively, compared with the year 2021. In 2020, xylem formation and radial increments were significantly reduced for B. alnoides, but not for S. wallichii. The thickness of enlarging zone and wall-thickening zone in S. wallichii were positively correlated with relative humidity, and minimum and mean air temperature, but were negatively correlated with vapor pressure deficit during 2020 to 2021. The radial increments of both species showed significant positive correlations with precipitation and relative humidity, and negative correlations with vapor pressure deficit and maximum air temperature during two years. Our findings reveal that drier pre-monsoon conditions strongly delay growth initiation and reduce stem radial growth, providing deep insights to understand tree growth and carbon sequestration potential in tropical forests under a predicted increase in frequent drought events.
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Affiliation(s)
- Ya-Nan Liu
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ze-Xin Fan
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- Ailaoshan Station of Subtropical Forest Ecosystem Studies, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Jingdong, Yunnan 676209, China
| | - You-Xing Lin
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, China
| | - Arisa Kaewmano
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Lian Wei
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pei-Li Fu
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
- Ailaoshan Station of Subtropical Forest Ecosystem Studies, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Jingdong, Yunnan 676209, China
| | - Jussi Grießinger
- Department of Environment and Biodiversity, University of Salzburg, Salzburg 5020, Austria
| | - Achim Bräuning
- Institute of Geography, Friedrich-Alexander-University Erlangen-Nürnberg, Wetterkreuz, Erlangen 91058, Germany
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Higgins SI, Banerjee S, Baudena M, Bowman DMJS, Conradi T, Couteron P, Kruger LM, O'Hara RB, Williamson GJ. Reassessing the alternative ecosystem states proposition in the African savanna-forest domain. THE NEW PHYTOLOGIST 2024; 243:1660-1669. [PMID: 38982706 DOI: 10.1111/nph.19911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 05/26/2024] [Indexed: 07/11/2024]
Abstract
Ecologists are being challenged to predict how ecosystems will respond to climate changes. According to the Multi-Colored World (MCW) hypothesis, climate impacts may not manifest because consumers such as fire and herbivory can override the influence of climate on ecosystem state. One MCW interpretation is that climate determinism fails because alternative ecosystem states (AES) are possible at some locations in climate space. We evaluated theoretical and empirical evidence for the proposition that forest and savanna are AES in Africa. We found that maps which infer where AES zones are located were contradictory. Moreover, data from longitudinal and experimental studies provide inconclusive evidence for AES. That is, although the forest-savanna AES proposition is theoretically sound, the existing evidence is not yet convincing. We conclude by making the case that the AES proposition has such fundamental consequences for designing management actions to mitigate and adapt to climate change in the savanna-forest domain that it needs a more robust evidence base before it is used to prescribe management actions.
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Affiliation(s)
- Steven I Higgins
- Plant Ecology, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Swarnendu Banerjee
- Dutch Institute for Emergent Phenomena, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, PO Box 94240, 1090 GE, Amsterdam, the Netherlands
- Copernicus Institute of Sustainable Development, Utrecht University, 3508 TC, Utrecht, the Netherlands
| | - Mara Baudena
- National Research Council, Institute of Atmospheric Sciences and Climate (CNR-ISAC), 10133, Torino, Italy
- National Biodiversity Future Center (NBFC), 90133, Palermo, Italy
| | - David M J S Bowman
- Fire, Centre, School of Natural Sciences, University of Tasmania, 7005 Sandy Bay, Hobart, Tas., Australia
| | - Timo Conradi
- Plant Ecology, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Pierre Couteron
- AMAP, University of Montpellier, IRD, CNRS, INRAE, CIRAD, 34394, Montpellier, France
| | - Laurence M Kruger
- Organization for Tropical Studies, PO Box 33, Skukuza, 1350, South Africa
| | - Robert B O'Hara
- Department of Mathematical Sciences, Norwegian University of Science and Technology, Trondheim, N-7491, Norway
| | - Grant J Williamson
- Fire, Centre, School of Natural Sciences, University of Tasmania, 7005 Sandy Bay, Hobart, Tas., Australia
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Dorgeist L, Schwingshackl C, Bultan S, Pongratz J. A consistent budgeting of terrestrial carbon fluxes. Nat Commun 2024; 15:7426. [PMID: 39198386 PMCID: PMC11358497 DOI: 10.1038/s41467-024-51126-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 07/30/2024] [Indexed: 09/01/2024] Open
Abstract
Accurate estimates of CO2 emissions from anthropogenic land-use change (ELUC) and of the natural terrestrial CO2 sink (SLAND) are crucial to precisely know how much CO2 can still be emitted to meet the goals of the Paris Agreement. In current carbon budgets, ELUC and SLAND stem from two model families that differ in how CO2 fluxes are attributed to environmental and land-use changes, making their estimates conceptually inconsistent. Here we provide consistent estimates of ELUC and SLAND by integrating environmental effects on land carbon into a spatially explicit bookkeeping model. We find that state-of-the-art process-based models overestimate SLAND by 23% (min: 8%, max: 33%) in 2012-2021, as they include hypothetical sinks that in reality are lost through historical ecosystem degradation. Additionally, ELUC increases by 14% (8%, 23%) in 2012-2021 when considering environmental effects. Altogether, we find a weaker net land sink, which makes reaching carbon neutrality even more ambitious. These results highlight that a consistent estimation of terrestrial carbon fluxes is essential to assess the progress of net-zero emission commitments and the remaining carbon budget.
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Affiliation(s)
- Lea Dorgeist
- Department of Geography, Ludwig-Maximilians-Universität, München, Germany
| | | | - Selma Bultan
- Department of Geography, Ludwig-Maximilians-Universität, München, Germany
| | - Julia Pongratz
- Department of Geography, Ludwig-Maximilians-Universität, München, Germany
- Max Planck Institute for Meteorology, Hamburg, Germany
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6
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Doraisami M, Domke GM, Martin AR. Improving wood carbon fractions for multiscale forest carbon estimation. CARBON BALANCE AND MANAGEMENT 2024; 19:25. [PMID: 39143377 PMCID: PMC11325570 DOI: 10.1186/s13021-024-00272-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 08/01/2024] [Indexed: 08/16/2024]
Abstract
BACKGROUND Wood carbon fractions (CFs)-the proportion of dry woody biomass comprised of elemental carbon (C)-are a key component of forest C estimation protocols and studies. Traditionally, a wood CF of 50% has been assumed in forest C estimation protocols, but recent studies have specifically quantified differences in wood CFs across several different forest biomes and taxonomic divisions, negating the need for generic wood CF assumptions. The Intergovernmental Panel on Climate Change (IPCC), in its 2006 "Guidelines for National Greenhouse Gas Inventories", published its own multitiered system of protocols for estimating forest C stocks, which included wood CFs that (1) were based on the best available literature (at the time) and (2) represented a significant improvement over the generic 50% wood CF assumption. However, a considerable number of new studies on wood CFs have been published since 2006, providing more accurate, robust, and spatially- and taxonomically- specific wood CFs for use in forest C estimation. MAIN TEXT We argue that the IPCC's recommended wood CFs and those in many other forest C estimation models and protocols (1) differ substantially from, and are less robust than, wood CFs derived from recently published data-rich studies; and (2) may lead to nontrivial errors in forest C estimates, particularly for countries that rely heavily on Tier 1 forest C methods and protocols (e.g., countries of the Global South with large expanses of tropical forests). Based on previous studies on this topic, we propose an alternative set of refined wood CFs for use in multiscale forest C estimation, and propose a novel decision-making framework for integrating species- and location-specific wood CFs into forest C estimation models. CONCLUSION The refined wood CFs that we present in this commentary may be used by the IPCC to update its recommended wood CFs for use in forest C estimation. Additionally, we propose a novel decision-making framework for integrating data-driven wood CFs into a wider suite of multitiered forest C estimation protocols, models, and studies.
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Affiliation(s)
- Mahendra Doraisami
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, Scarborough, M1C 1A4, Canada
| | - Grant M Domke
- USDA Forest Service, Northern Research Station, St. Paul, MN, USA
| | - Adam R Martin
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, Scarborough, M1C 1A4, Canada.
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Terryn L, Calders K, Meunier F, Bauters M, Boeckx P, Brede B, Burt A, Chave J, da Costa ACL, D'hont B, Disney M, Jucker T, Lau A, Laurance SGW, Maeda EE, Meir P, Krishna Moorthy SM, Nunes MH, Shenkin A, Sibret T, Verhelst TE, Wilkes P, Verbeeck H. New tree height allometries derived from terrestrial laser scanning reveal substantial discrepancies with forest inventory methods in tropical rainforests. GLOBAL CHANGE BIOLOGY 2024; 30:e17473. [PMID: 39155688 DOI: 10.1111/gcb.17473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 07/31/2024] [Accepted: 08/01/2024] [Indexed: 08/20/2024]
Abstract
Tree allometric models, essential for monitoring and predicting terrestrial carbon stocks, are traditionally built on global databases with forest inventory measurements of stem diameter (D) and tree height (H). However, these databases often combine H measurements obtained through various measurement methods, each with distinct error patterns, affecting the resulting H:D allometries. In recent decades, terrestrial laser scanning (TLS) has emerged as a widely accepted method for accurate, non-destructive tree structural measurements. This study used TLS data to evaluate the prediction accuracy of forest inventory-based H:D allometries and to develop more accurate pantropical allometries. We considered 19 tropical rainforest plots across four continents. Eleven plots had forest inventory and RIEGL VZ-400(i) TLS-based D and H data, allowing accuracy assessment of local forest inventory-based H:D allometries. Additionally, TLS-based data from 1951 trees from all 19 plots were used to create new pantropical H:D allometries for tropical rainforests. Our findings reveal that in most plots, forest inventory-based H:D allometries underestimated H compared with TLS-based allometries. For 30-metre-tall trees, these underestimations varied from -1.6 m (-5.3%) to -7.5 m (-25.4%). In the Malaysian plot with trees reaching up to 77 m in height, the underestimation was as much as -31.7 m (-41.3%). We propose a TLS-based pantropical H:D allometry, incorporating maximum climatological water deficit for site effects, with a mean uncertainty of 19.1% and a mean bias of -4.8%. While the mean uncertainty is roughly 2.3% greater than that of the Chave2014 model, this model demonstrates more consistent uncertainties across tree size and delivers less biased estimates of H (with a reduction of 8.23%). In summary, recognizing the errors in H measurements from forest inventory methods is vital, as they can propagate into the allometries they inform. This study underscores the potential of TLS for accurate H and D measurements in tropical rainforests, essential for refining tree allometries.
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Affiliation(s)
- Louise Terryn
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
| | - Kim Calders
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
| | - Félicien Meunier
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
| | - Marijn Bauters
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
- ISOFYS - Isotope Bioscience Laboratory, Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
| | - Pascal Boeckx
- ISOFYS - Isotope Bioscience Laboratory, Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
| | - Benjamin Brede
- GFZ German Research Centre for Geosciences, Potsdam, Germany
| | | | - Jerome Chave
- Laboratoire Evolution and Biological Diversity (EDB), CNRS/IRD/UPS, Toulouse, France
| | - Antonio Carlos Lola da Costa
- Geociencias, Federal University of Para, Belem, State of Para, Brazil
- Museu Paraense Emilio Goeldi, Belem, State of Para, Brazil
| | - Barbara D'hont
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
| | - Mathias Disney
- UCL Department of Geography, London, UK
- NERC National Centre for Earth Observation (NCEO-UCL), Swindon, UK
| | - Tommaso Jucker
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - Alvaro Lau
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University, Wageningen, Gelderland, the Netherlands
| | - Susan G W Laurance
- Centre for Tropical Environmental and Sustainability Science and College of Science and Engineering, James Cook University, Cairns, Australia
| | - Eduardo Eiji Maeda
- Finnish Meteorological Institute, FMI, Helsinki, Finland
- Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland
| | - Patrick Meir
- School of Geosciences, University of Edinburgh, Edinburgh, UK
| | - Sruthi M Krishna Moorthy
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
- Department of Biology, University of Oxford, Oxford, UK
| | - Matheus Henrique Nunes
- Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland
- Department of Geographical Sciences, University of Maryland, College Park, Maryland, USA
| | - Alexander Shenkin
- School of Informatics, Computing, and Cyber Systems, Northern Arizona University Flagstaff, Flagstaff, Arizona, USA
| | - Thomas Sibret
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
- ISOFYS - Isotope Bioscience Laboratory, Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
| | - Tom E Verhelst
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
| | - Phil Wilkes
- Department of Geography, University College London, London, UK
- NERC National Centre for Earth Observation, Leicester, UK
| | - Hans Verbeeck
- Q-ForestLab, Department of Environment, Ghent University, Ghent, Belgium
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8
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Levine JM, HilleRisLambers J, Petry WK, Usinowicz J, Crowther TW. Demographic but not competitive time lags can transiently amplify climate-induced changes in vegetation carbon storage. GLOBAL CHANGE BIOLOGY 2024; 30:e17432. [PMID: 39092542 DOI: 10.1111/gcb.17432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/30/2024] [Accepted: 06/25/2024] [Indexed: 08/04/2024]
Abstract
How terrestrial ecosystems will accumulate carbon as the climate continues to change is a major source of uncertainty in projections of future climate. Under growth-stimulating environmental change, time lags inherent in population and community dynamic processes have been posed to dampen, or alternatively amplify, short-term carbon gain in terrestrial vegetation, but these outcomes can be difficult to predict. To theoretically frame this problem, we developed a simple model of vegetation dynamics that identifies the stage-structured demographic and competitive processes that could govern the timescales of carbon storage and loss. We show that demographic lags associated with growth-stimulating environmental change can allow a rapid increase in population-level carbon storage that is lost back to the atmosphere in later years. However, this transient carbon storage only emerges when environmental change increases the transition of adult individuals into a larger size class that suffers markedly higher mortality. Otherwise, demographic lags simply slow carbon accumulation. Counterintuitively, an analogous tradeoff between maximum adult size and survivorship in two-species models, coupled with environmental change-driven replacement, does not generate the transient carbon gain seen in the single-species models. Instead lags in competitive replacement slow the approach to the eventual carbon trajectory. Together, our results suggest that time lags inherent in demographic and compositional turnover tend to slow carbon accumulation in systems responding to growth-stimulating environmental change. Only under specific conditions will lagged demographic processes in such systems drive transient carbon accumulation, conditions that investigators can examine in nature to help project future carbon trajectories.
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Affiliation(s)
- Jonathan M Levine
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, USA
| | | | - William K Petry
- Department of Plant Biology, North Carolina State University, Raleigh, North Carolina, USA
| | - Jacob Usinowicz
- Department of Zoology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Thomas W Crowther
- Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
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9
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Cuni-Sanchez A, Martin EH, Uzabaho E, Ngute ASK, Bitariho R, Kayijamahe C, Marshall AR, Mohamed NA, Mseja GA, Nkwasibwe A, Rovero F, Sheil D, Tinkasimire R, Tumugabirwe L, Feeley KJ, Sullivan MJP. Evidence of thermophilization in Afromontane forests. Nat Commun 2024; 15:5554. [PMID: 38987543 PMCID: PMC11236992 DOI: 10.1038/s41467-024-48520-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 05/03/2024] [Indexed: 07/12/2024] Open
Abstract
Thermophilization is the directional change in species community composition towards greater relative abundances of species associated with warmer environments. This process is well-documented in temperate and Neotropical plant communities, but it is uncertain whether this phenomenon occurs elsewhere in the tropics. Here we extend the search for thermophilization to equatorial Africa, where lower tree diversity compared to other tropical forest regions and different biogeographic history could affect community responses to climate change. Using re-census data from 17 forest plots in three mountain regions of Africa, we find a consistent pattern of thermophilization in tree communities. Mean rates of thermophilization were +0.0086 °C·y-1 in the Kigezi Highlands (Uganda), +0.0032 °C·y-1 in the Virunga Mountains (Rwanda-Uganda-Democratic Republic of the Congo) and +0.0023 °C·y-1 in the Udzungwa Mountains (Tanzania). Distinct from other forests, both recruitment and mortality were important drivers of thermophilzation in the African plots. The forests studied currently act as a carbon sink, but the consequences of further thermophilization are unclear.
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Affiliation(s)
- Aida Cuni-Sanchez
- Department of International Environmental and Development Studies (NORAGRIC), Norwegian University of Life Sciences, Ås, Norway.
- Department of Environment and Geography, University of York, York, UK.
| | | | | | - Alain S K Ngute
- Forest Research Institute, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Robert Bitariho
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology, Mbarara, Uganda
| | | | - Andrew R Marshall
- Forest Research Institute, University of the Sunshine Coast, Sippy Downs, QLD, Australia
- Flamingo Land Ltd, Malton, UK
| | | | | | - Aventino Nkwasibwe
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Francesco Rovero
- Department of Biology, University of Florence, Sesto Fiorentino, Italy
- MUSE-Museo delle Scienze, Trento, Italy
| | - Douglas Sheil
- Forest Ecology and Forest Management Group, Wageningen University & Research, Wageningen, The Netherlands
| | - Rogers Tinkasimire
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Lawrence Tumugabirwe
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Kenneth J Feeley
- Department of Biology, University of Miami, Coral Gables, FL, USA
- Fairchild Tropical Botanic Garden, Coral Gables, FL, USA
| | - Martin J P Sullivan
- Department of Natural Sciences, Manchester Metropolitan University, Manchester, UK.
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10
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Bénédet F, Gourlet-Fleury S, Allah-Barem F, Baya F, Beina D, Cornu G, Dimanche L, Dubiez É, Forni É, Freycon V, Mortier F, Ouédraogo DY, Picard N, Rossi V, Semboli O, Yalibanda Y, Yongo-Bombo O, Fayolle A. 40 years of forest dynamics and tree demography in an intact tropical forest at M'Baïki in central Africa. Sci Data 2024; 11:734. [PMID: 38971846 PMCID: PMC11227503 DOI: 10.1038/s41597-024-03577-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/25/2024] [Indexed: 07/08/2024] Open
Abstract
A vast silvicultural experiment was set up in 1982 nearby the town of M'Baïki in the Central African Republic to monitor the recovery of tropical forests after disturbance. The M'Baïki experiment consists of ten 4-ha Permanent Sample Plots (PSPs) that were assigned to three silvicultural treatments in 1986 according to a random block design. In each plot, all trees with a girth at breast height greater than 30 cm were spatially located, numbered, measured, and determined botanically. Girth, mortality and newly recruited trees, were monitored almost annually over the 1982-2022 period with inventory campaigns for 35 years. The data were earlier used to fit growth and population models, to study the species composition dynamics, and the effect of silvicultural treatments on tree diversity and aboveground biomass. Here, we present new information on the forest stand structure dynamics and tree demography. The data released from this paper cover the three control plots and constitute a major contribution for further studies about the biodiversity of intact tropical forests.
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Affiliation(s)
- Fabrice Bénédet
- Forêts et Sociétés, Université de Montpellier, CIRAD, Montpellier, France.
- CIRAD, Forêts et Sociétés, Montpellier, France.
| | - Sylvie Gourlet-Fleury
- Forêts et Sociétés, Université de Montpellier, CIRAD, Montpellier, France
- CIRAD, Forêts et Sociétés, Montpellier, France
| | - Félix Allah-Barem
- Institut Centrafricain de la Recherche Agronomique, Bangui, Central African Republic
| | - Fidèle Baya
- Ministère des Eaux, Forêts, Chasse et Pêche, Bangui, Central African Republic
| | - Denis Beina
- Université de Bangui. Faculté des Sciences. Laboratoire de Biodiversité Végétale et Fongique, Bangui, Central African Republic
| | - Guillaume Cornu
- Forêts et Sociétés, Université de Montpellier, CIRAD, Montpellier, France
- CIRAD, Forêts et Sociétés, Montpellier, France
| | - Luc Dimanche
- Fonds de Développement Forestier, Bangui, Central African Republic
| | - Émilien Dubiez
- CIRAD, Forêts et Sociétés, Montpellier, France
- Institut national de Recherche Forestière, Brazzaville, Republic of the Congo
| | - Éric Forni
- CIRAD, Forêts et Sociétés, Montpellier, France
- Université Marien Ngouabi, Brazzaville, Republic of the Congo
| | - Vincent Freycon
- Forêts et Sociétés, Université de Montpellier, CIRAD, Montpellier, France
- CIRAD, Forêts et Sociétés, Montpellier, France
| | - Frédéric Mortier
- Forêts et Sociétés, Université de Montpellier, CIRAD, Montpellier, France
- CIRAD, Forêts et Sociétés, Montpellier, France
| | | | | | - Vivien Rossi
- CIRAD, Forêts et Sociétés, Montpellier, France
- Université Marien Ngouabi, Brazzaville, Republic of the Congo
| | - Olivia Semboli
- Université de Bangui. Faculté des Sciences. Laboratoire de Biodiversité Végétale et Fongique, Bangui, Central African Republic
- Centre d'Études et de Recherche en Pharmacopée et Médecine Traditionnelle Africaine, Université de Bangui, Bangui, Central African Republic
| | - Yves Yalibanda
- Ministère des Eaux, Forêts, Chasse et Pêche, Bangui, Central African Republic
| | - Olga Yongo-Bombo
- Université de Bangui. Faculté des Sciences. Laboratoire de Biodiversité Végétale et Fongique, Bangui, Central African Republic
| | - Adeline Fayolle
- Forêts et Sociétés, Université de Montpellier, CIRAD, Montpellier, France
- CIRAD, Forêts et Sociétés, Montpellier, France
- Gembloux Agro-Bio Tech, Université de Liège, Gembloux, Belgium
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11
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Gauci V, Pangala SR, Shenkin A, Barba J, Bastviken D, Figueiredo V, Gomez C, Enrich-Prast A, Sayer E, Stauffer T, Welch B, Elias D, McNamara N, Allen M, Malhi Y. Global atmospheric methane uptake by upland tree woody surfaces. Nature 2024; 631:796-800. [PMID: 39048683 PMCID: PMC11269171 DOI: 10.1038/s41586-024-07592-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/23/2024] [Indexed: 07/27/2024]
Abstract
Methane is an important greenhouse gas1, but the role of trees in the methane budget remains uncertain2. Although it has been shown that wetland and some upland trees can emit soil-derived methane at the stem base3,4, it has also been suggested that upland trees can serve as a net sink for atmospheric methane5,6. Here we examine in situ woody surface methane exchange of upland tropical, temperate and boreal forest trees. We find that methane uptake on woody surfaces, in particular at and above about 2 m above the forest floor, can dominate the net ecosystem contribution of trees, resulting in a net tree methane sink. Stable carbon isotope measurement of methane in woody surface chamber air and process-level investigations on extracted wood cores are consistent with methanotrophy, suggesting a microbially mediated drawdown of methane on and in tree woody surfaces and tissues. By applying terrestrial laser scanning-derived allometry to quantify global forest tree woody surface area, a preliminary first estimate suggests that trees may contribute 24.6-49.9 Tg of atmospheric methane uptake globally. Our findings indicate that the climate benefits of tropical and temperate forest protection and reforestation may be greater than previously assumed.
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Affiliation(s)
- Vincent Gauci
- Birmingham Institute of Forest Research, University of Birmingham, Birmingham, UK.
- School of Geography, Earth and Environmental Science, University of Birmingham, Birmingham, UK.
| | | | - Alexander Shenkin
- School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
| | - Josep Barba
- Birmingham Institute of Forest Research, University of Birmingham, Birmingham, UK
- School of Geography, Earth and Environmental Science, University of Birmingham, Birmingham, UK
- CREAF, Cerdanyola del Vallès, Spain
| | - David Bastviken
- Department of Thematic Studies-Environmental Change, Linköping University, Linkoping, Sweden
| | - Viviane Figueiredo
- Department of Thematic Studies-Environmental Change, Linköping University, Linkoping, Sweden
| | - Carla Gomez
- School of Environment, Earth and Ecosystem Studies, The Open University, Milton Keynes, UK
| | - Alex Enrich-Prast
- Department of Thematic Studies-Environmental Change, Linköping University, Linkoping, Sweden
- Multiuser Unit of Environmental Analysis, University Federal of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Marine Science, Federal University of São Paulo (IMar/UNIFESP), Santos, Brazil
| | - Emma Sayer
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Smithsonian Tropical Research Institute, Balboa, Panama City, Republic of Panama
- Institute of Botany, Ulm University, Ulm, Germany
| | - Tainá Stauffer
- Multiuser Unit of Environmental Analysis, University Federal of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bertie Welch
- School of Environment, Earth and Ecosystem Studies, The Open University, Milton Keynes, UK
| | - Dafydd Elias
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, UK
| | - Niall McNamara
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, UK
| | - Myles Allen
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
- Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
- Leverhulme Centre for Nature Recovery, University of Oxford, Oxford, UK
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12
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Jones JPG. Scandal in the voluntary carbon market must not impede tropical forest conservation. Nat Ecol Evol 2024; 8:1203-1204. [PMID: 38831018 DOI: 10.1038/s41559-024-02442-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Affiliation(s)
- Julia P G Jones
- School of Environmental and Natural Sciences, Bangor University, Bangor, UK.
- Department of Biology, Utrecht University, Utrecht, the Netherlands.
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13
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Pan Y, Birdsey RA, Phillips OL, Houghton RA, Fang J, Kauppi PE, Keith H, Kurz WA, Ito A, Lewis SL, Nabuurs GJ, Shvidenko A, Hashimoto S, Lerink B, Schepaschenko D, Castanho A, Murdiyarso D. The enduring world forest carbon sink. Nature 2024; 631:563-569. [PMID: 39020035 DOI: 10.1038/s41586-024-07602-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 05/24/2024] [Indexed: 07/19/2024]
Abstract
The uptake of carbon dioxide (CO2) by terrestrial ecosystems is critical for moderating climate change1. To provide a ground-based long-term assessment of the contribution of forests to terrestrial CO2 uptake, we synthesized in situ forest data from boreal, temperate and tropical biomes spanning three decades. We found that the carbon sink in global forests was steady, at 3.6 ± 0.4 Pg C yr-1 in the 1990s and 2000s, and 3.5 ± 0.4 Pg C yr-1 in the 2010s. Despite this global stability, our analysis revealed some major biome-level changes. Carbon sinks have increased in temperate (+30 ± 5%) and tropical regrowth (+29 ± 8%) forests owing to increases in forest area, but they decreased in boreal (-36 ± 6%) and tropical intact (-31 ± 7%) forests, as a result of intensified disturbances and losses in intact forest area, respectively. Mass-balance studies indicate that the global land carbon sink has increased2, implying an increase in the non-forest-land carbon sink. The global forest sink is equivalent to almost half of fossil-fuel emissions (7.8 ± 0.4 Pg C yr-1 in 1990-2019). However, two-thirds of the benefit from the sink has been negated by tropical deforestation (2.2 ± 0.5 Pg C yr-1 in 1990-2019). Although the global forest sink has endured undiminished for three decades, despite regional variations, it could be weakened by ageing forests, continuing deforestation and further intensification of disturbance regimes1. To protect the carbon sink, land management policies are needed to limit deforestation, promote forest restoration and improve timber-harvesting practices1,3.
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Affiliation(s)
- Yude Pan
- USDA Forest Service, Durham, NH, USA.
| | | | | | | | | | - Pekka E Kauppi
- Department of Forest Sciences, University of Helsinki, Helsinki, Finland
- Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Heather Keith
- Climate Action Beacon, Griffith University, Gold Coast, Australia
| | - Werner A Kurz
- Natural Resources Canada, Canadian Forest Service, Victoria, Canada
| | | | - Simon L Lewis
- School of Geography, University of Leeds, Leeds, UK
- Department of Geography, University College London, London, UK
| | - Gert-Jan Nabuurs
- Wageningen Environmental Research, Wageningen University & Research, Wageningen, Netherlands
- Forest Ecology and Forest Management Group, Wageningen University & Research, Wageningen, Netherlands
| | - Anatoly Shvidenko
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria
| | - Shoji Hashimoto
- The University of Tokyo, Tokyo, Japan
- Forestry and Forest Products Research Institute, Tsukuba, Japan
| | - Bas Lerink
- Wageningen Environmental Research, Wageningen University & Research, Wageningen, Netherlands
| | - Dmitry Schepaschenko
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria
| | | | - Daniel Murdiyarso
- Department of Geophysics and Meteorology, IPB University, Bogor, Indonesia
- Center for International Forestry Research - World Agroforestry, Bogor, Indonesia
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14
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Manu R, Veldkamp E, Eryenyu D, Corre MD, van Straaten O. Nitrogen and potassium limit fine root growth in a humid Afrotropical forest. Sci Rep 2024; 14:13154. [PMID: 38849444 PMCID: PMC11161472 DOI: 10.1038/s41598-024-63684-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 05/31/2024] [Indexed: 06/09/2024] Open
Abstract
Nutrient limitations play a key regulatory role in plant growth, thereby affecting ecosystem productivity and carbon uptake. Experimental observations identifying the most limiting nutrients are lacking, particularly in Afrotropical forests. We conducted an ecosystem-scale, full factorial nitrogen (N)-phosphorus (P)-potassium (K) addition experiment consisting 32 40 × 40 m plots (eight treatments × four replicates) in Uganda to investigate which (if any) nutrient limits fine root growth. After two years of observations, added N rapidly decreased fine root biomass by up to 36% in the first and second years of the experiment. Added K decreased fine root biomass by 27% and fine root production by 30% in the second year. These rapid reductions in fine root growth highlight a scaled-back carbon investment in the costly maintenance of large fine root network as N and K limitations become alleviated. No fine root growth response to P addition was observed. Fine root turnover rate was not significantly affected by nutrient additions but tended to be higher in N added than non-N added treatments. These results suggest that N and K availability may restrict the ecosystem's capacity for CO2 assimilation, with implications for ecosystem productivity and resilience to climate change.
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Affiliation(s)
- Raphael Manu
- Department of Soil Science of Tropical and Subtropical Ecosystems, University of Göttingen, Göttingen, Germany.
| | - Edzo Veldkamp
- Department of Soil Science of Tropical and Subtropical Ecosystems, University of Göttingen, Göttingen, Germany
| | - David Eryenyu
- Budongo Conservation Field Station, Masindi, Uganda
- Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
- Royal Zoological Society of Scotland (Edinburgh Zoo), Edinburgh, Scotland
| | - Marife D Corre
- Department of Soil Science of Tropical and Subtropical Ecosystems, University of Göttingen, Göttingen, Germany
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15
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Gora EM, DeFillipis DM, Schnitzer SA. Patterns and inferred causes of liana mortality in a tropical forest. Proc Biol Sci 2024; 291:20240808. [PMID: 38889791 DOI: 10.1098/rspb.2024.0808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 05/08/2024] [Indexed: 06/20/2024] Open
Abstract
Lianas are major contributors to tropical forest dynamics, yet we know little about their mortality. Using overlapping censuses of the lianas and trees across a 50 ha stand of moist tropical forest, we contrasted community-wide patterns of liana mortality with relatively well-studied patterns of tree mortality to quantify patterns of liana death and identify contributing factors. Liana mortality rates were 172% higher than tree mortality rates, but species-level mortality rates of lianas were similar to trees with 'fast' life-history strategies and both growth forms exhibited similar spatial and size-dependent patterns. The mortality rates of liana saplings (<2.1 cm in diameter), which represent about 50% of liana individuals, decreased with increasing disturbance severity and remained consistently low during post-disturbance stand thinning. In contrast, larger liana individuals and trees of all sizes had elevated mortality rates in response to disturbance and their mortality rates decreased over time since disturbance. Within undisturbed forest patches, liana mortality rates increased with increasing soil fertility in a manner similar to trees. The distinct responses of liana saplings to disturbance appeared to distinguish liana mortality from that of trees, whereas similarities in their patterns of death suggest that there are common drivers of woody plant mortality.
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Affiliation(s)
- Evan M Gora
- Smithsonian Tropical Research Institute, Balboa , Ancón, Panama
- Cary Institute of Ecosystem Studies , Millbrook, NY, USA
| | | | - Stefan A Schnitzer
- Smithsonian Tropical Research Institute, Balboa , Ancón, Panama
- Department of Biological Sciences, Marquette , Milwaukee, WI, USA
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16
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Fang S, Ren J, Cadotte MW, Yuan Z, Hao Z, Wang X, Lin F, Fortunel C. Disturbance history, neighborhood crowding and soil conditions jointly shape tree growth in temperate forests. Oecologia 2024; 205:295-306. [PMID: 38824461 DOI: 10.1007/s00442-024-05570-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 05/19/2024] [Indexed: 06/03/2024]
Abstract
Understanding how different mechanisms act and interact in shaping communities and ecosystems is essential to better predict their future with global change. Disturbance legacy, abiotic conditions, and biotic interactions can simultaneously influence tree growth, but it remains unclear what are their relative contributions and whether they have additive or interactive effects. We examined the separate and joint effects of disturbance intensity, soil conditions, and neighborhood crowding on tree growth in 10 temperate forests in northeast China. We found that disturbance was the strongest driver of tree growth, followed by neighbors and soil. Specifically, trees grew slower with decreasing initial disturbance intensity, but with increasing neighborhood crowding, soil pH and soil total phosphorus. Interestingly, the decrease in tree growth with increasing soil pH and soil phosphorus was steeper with high initial disturbance intensity. Testing the role of species traits, we showed that fast-growing species exhibited greater maximum tree size, but lower wood density and specific leaf area. Species with lower wood density grew faster with increasing initial disturbance intensity, while species with higher specific leaf area suffered less from neighbors in areas with high initial disturbance intensity. Our study suggests that accounting for both individual and interactive effects of multiple drivers is crucial to better predict forest dynamics.
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Affiliation(s)
- Shuai Fang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning, China
| | - Jing Ren
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- AMAP (Botanique et Modélisation de l'Architecture des Plantes et des Végétations), CIRAD, CNRS, INRAE, IRD, Université de Montpellier, Montpellier, France
| | - Marc William Cadotte
- Department of Biological Sciences, University of Toronto-Scarborough, Toronto, ON, M1C 1A4, Canada
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, M5S 3B2, Canada
| | - Zuoqiang Yuan
- Research Center for Ecological and Environmental Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Zhanqing Hao
- Research Center for Ecological and Environmental Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Xugao Wang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning, China
| | - Fei Lin
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
- Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning, China.
| | - Claire Fortunel
- AMAP (Botanique et Modélisation de l'Architecture des Plantes et des Végétations), CIRAD, CNRS, INRAE, IRD, Université de Montpellier, Montpellier, France.
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17
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Wessely J, Essl F, Fiedler K, Gattringer A, Hülber B, Ignateva O, Moser D, Rammer W, Dullinger S, Seidl R. A climate-induced tree species bottleneck for forest management in Europe. Nat Ecol Evol 2024; 8:1109-1117. [PMID: 38684739 DOI: 10.1038/s41559-024-02406-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 03/24/2024] [Indexed: 05/02/2024]
Abstract
Large pulses of tree mortality have ushered in a major reorganization of Europe's forest ecosystems. To initiate a robust next generation of trees, the species that are planted today need to be climatically suitable throughout the entire twenty-first century. Here we developed species distribution models for 69 European tree species based on occurrence data from 238,080 plot locations to investigate the option space for current forest management in Europe. We show that the average pool of tree species continuously suitable throughout the century is smaller than that under current and end-of-century climate conditions, creating a tree species bottleneck for current management. If the need for continuous climate suitability throughout the lifespan of a tree planted today is considered, climate change shrinks the tree species pool available to management by between 33% and 49% of its current values (40% and 54% of potential end-of-century values), under moderate (Representative Concentration Pathway 2.6) and severe (Representative Concentration Pathway 8.5) climate change, respectively. This bottleneck could have strong negative impacts on timber production, carbon storage and biodiversity conservation, as only 3.18, 3.53 and 2.56 species of high potential for providing these functions remain suitable throughout the century on average per square kilometre in Europe. Our results indicate that the option space for silviculture is narrowing substantially because of climate change and that an important adaptation strategy in forestry-creating mixed forests-might be curtailed by widespread losses of climatically suitable tree species.
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Affiliation(s)
- Johannes Wessely
- Division of Biodiversity Dynamics and Conservation, Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria.
| | - Franz Essl
- Division of BioInvasions, Global Change and Macroecology, Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
- Centre for Invasion Biology, Stellenbosch University, Stellenbosch, South Africa
| | - Konrad Fiedler
- Division of Tropical Ecology and Animal Biodiversity, Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | - Andreas Gattringer
- Division of Biodiversity Dynamics and Conservation, Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | - Bernhard Hülber
- Division of Biodiversity Dynamics and Conservation, Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | - Olesia Ignateva
- Research Division Cartography, Department of Geodesy and Geoinformation, Vienna University of Technology, Vienna, Austria
| | - Dietmar Moser
- Division of Biodiversity Dynamics and Conservation, Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | - Werner Rammer
- Ecosystem Dynamics and Forest Management Group, School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Stefan Dullinger
- Division of Biodiversity Dynamics and Conservation, Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria
| | - Rupert Seidl
- Ecosystem Dynamics and Forest Management Group, School of Life Sciences, Technical University of Munich, Freising, Germany
- Berchtesgaden National Park, Berchtesgaden, Germany
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18
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Slot M, Rifai SW, Eze CE, Winter K. The stomatal response to vapor pressure deficit drives the apparent temperature response of photosynthesis in tropical forests. THE NEW PHYTOLOGIST 2024. [PMID: 38736030 DOI: 10.1111/nph.19806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 04/18/2024] [Indexed: 05/14/2024]
Abstract
As temperature rises, net carbon uptake in tropical forests decreases, but the underlying mechanisms are not well understood. High temperatures can limit photosynthesis directly, for example by reducing biochemical capacity, or indirectly through rising vapor pressure deficit (VPD) causing stomatal closure. To explore the independent effects of temperature and VPD on photosynthesis we analyzed photosynthesis data from the upper canopies of two tropical forests in Panama with Generalized Additive Models. Stomatal conductance and photosynthesis consistently decreased with increasing VPD, and statistically accounting for VPD increased the optimum temperature of photosynthesis (Topt) of trees from a VPD-confounded apparent Topt of c. 30-31°C to a VPD-independent Topt of c. 33-36°C, while for lianas no VPD-independent Topt was reached within the measured temperature range. Trees and lianas exhibited similar temperature and VPD responses in both forests, despite 1500 mm difference in mean annual rainfall. Over ecologically relevant temperature ranges, photosynthesis in tropical forests is largely limited by indirect effects of warming, through changes in VPD, not by direct warming effects of photosynthetic biochemistry. Failing to account for VPD when determining Topt misattributes the underlying causal mechanism and thereby hinders the advancement of mechanistic understanding of global warming effects on tropical forest carbon dynamics.
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Affiliation(s)
- Martijn Slot
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Panama
| | - Sami W Rifai
- School of Biological Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Chinedu E Eze
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Panama
- Department of Agronomy, Michael Okpara University of Agriculture, Umudike, Abia State, 440109, Nigeria
| | - Klaus Winter
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Panama
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19
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Gessler A, Zweifel R. Beyond source and sink control - toward an integrated approach to understand the carbon balance in plants. THE NEW PHYTOLOGIST 2024; 242:858-869. [PMID: 38375596 DOI: 10.1111/nph.19611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/03/2024] [Indexed: 02/21/2024]
Abstract
A conceptual understanding on how the vegetation's carbon (C) balance is determined by source activity and sink demand is important to predict its C uptake and sequestration potential now and in the future. We have gathered trajectories of photosynthesis and growth as a function of environmental conditions described in the literature and compared them with current concepts of source and sink control. There is no clear evidence for pure source or sink control of the C balance, which contradicts recent hypotheses. Using model scenarios, we show how legacy effects via structural and functional traits and antecedent environmental conditions can alter the plant's carbon balance. We, thus, combined the concept of short-term source-sink coordination with long-term environmentally driven legacy effects that dynamically acclimate structural and functional traits over time. These acclimated traits feedback on the sensitivity of source and sink activity and thus change the plant physiological responses to environmental conditions. We postulate a whole plant C-coordination system that is primarily driven by stomatal optimization of growth to avoid a C source-sink mismatch. Therefore, we anticipate that C sequestration of forest ecosystems under future climate conditions will largely follow optimality principles that balance water and carbon resources to maximize growth in the long term.
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Affiliation(s)
- Arthur Gessler
- Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland
- Institute of Terrestrial Ecosystems, ETH Zurich, 8092, Zurich, Switzerland
| | - Roman Zweifel
- Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland
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20
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Wittemann M, Mujawamariya M, Ntirugulirwa B, Uwizeye FK, Zibera E, Manzi OJL, Nsabimana D, Wallin G, Uddling J. Plasticity and implications of water-use traits in contrasting tropical tree species under climate change. PHYSIOLOGIA PLANTARUM 2024; 176:e14326. [PMID: 38708565 DOI: 10.1111/ppl.14326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/12/2024] [Indexed: 05/07/2024]
Abstract
Plants face a trade-off between hydraulic safety and growth, leading to a range of water-use strategies in different species. However, little is known about such strategies in tropical trees and whether different water-use traits can acclimate to warming. We studied five water-use traits in 20 tropical tree species grown at three different altitudes in Rwanda (RwandaTREE): stomatal conductance (gs), leaf minimum conductance (gmin), plant hydraulic conductance (Kplant), leaf osmotic potential (ψo) and net defoliation during drought. We also explored the links between these traits and growth and mortality data. Late successional (LS) species had low Kplant, gs and gmin and, thus, low water loss, while low ψo helped improve leaf water status during drought. Early successional (ES) species, on the contrary, used more water during both moist and dry conditions and exhibited pronounced drought defoliation. The ES strategy was associated with lower mortality and more pronounced growth enhancement at the warmer sites compared to LS species. While Kplant and gmin showed downward acclimation in warmer climates, ψo did not acclimate and gs measured at prevailing temperature did not change. Due to distinctly different water use strategies between successional groups, ES species may be better equipped for a warmer climate as long as defoliation can bridge drought periods.
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Affiliation(s)
- Maria Wittemann
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Myriam Mujawamariya
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Department of Biology, College of Science and Technology, University of Rwanda, Kigali, Rwanda
| | - Bonaventure Ntirugulirwa
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Department of Biology, College of Science and Technology, University of Rwanda, Kigali, Rwanda
- Rwanda Agriculture and Animal Resources Development Board (RAB), Kigali, Rwanda
- Rwanda Forestry Authority, Muhanga, Rwanda
| | - Felicien K Uwizeye
- School of Forestry and Biodiversity and Biological Sciences, College of Agriculture, Animal Sciences and Veterinary Medicine, University of Rwanda, Musanze, Rwanda
| | - Etienne Zibera
- School of Forestry and Biodiversity and Biological Sciences, College of Agriculture, Animal Sciences and Veterinary Medicine, University of Rwanda, Musanze, Rwanda
| | - Olivier Jean Leonce Manzi
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
- Integrated Polytechnic Regional College-Kitabi, Rwanda Polytechnic, Huye, Rwanda
| | - Donat Nsabimana
- School of Forestry and Biodiversity and Biological Sciences, College of Agriculture, Animal Sciences and Veterinary Medicine, University of Rwanda, Musanze, Rwanda
| | - Göran Wallin
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Johan Uddling
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
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21
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Chai Y, Hu Y. Characteristics and drivers of vegetation productivity sensitivity to increasing CO 2 at Northern Middle and High Latitudes. Ecol Evol 2024; 14:e11467. [PMID: 38799397 PMCID: PMC11116762 DOI: 10.1002/ece3.11467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/01/2024] [Accepted: 05/08/2024] [Indexed: 05/29/2024] Open
Abstract
Understanding and accurately predicting how the sensitivity of terrestrial vegetation productivity to rising atmospheric CO2 concentration (β) is crucial for assessing carbon sink dynamics. However, the temporal characteristics and driving mechanisms of β remain uncertain. Here, observational and CMIP6 modeling evidence suggest a decreasing trend in β at the Northern Middle and High Latitudes during the historical period of 1982-2015 (-0.082 ± 0.005% 100 ppm-1 year-1). This decreasing trend is projected to persist until the end of the 21st century (-0.082 ± 0.005% 100 ppm-1 year-1 under SSP370 and -0.166 ± 0.006% 100 ppm-1 year-1 under SSP585). The declining β indicates a weakening capacity of vegetation to mitigate warming climates, posing challenges for achieving the temperature goals of the Paris Agreement. The rise in vapor pressure deficit (VPD), that triggers stomata closure and weakens photosynthesis, is considered as the dominated factor contributing to the historical and future decline in β, accounting for 62.3%-75.2% of the effect. Nutrient availability and water availability contribute 15.7%-21.4% and 8.5%-16.3%, respectively. These findings underscore the significant role of VPD in shaping terrestrial carbon sink dynamics, an aspect that is currently insufficiently considered in many climate and ecological models.
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Affiliation(s)
- Yuanfang Chai
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina
| | - Yong Hu
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth EnvironmentChinese Academy of SciencesXi'anChina
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22
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Damasceno AR, Garcia S, Aleixo IF, Menezes JCG, Pereira IS, De Kauwe MG, Ferrer VR, Fleischer K, Grams TEE, Guedes AV, Hartley IP, Kruijt B, Lugli LF, Martins NP, Norby RJ, Pires-Santos JS, Portela BTT, Rammig A, de Oliveira LR, Santana FD, Santos YR, de Souza CCS, Ushida G, Lapola DM, Quesada CAN, Domingues TF. In situ short-term responses of Amazonian understory plants to elevated CO 2. PLANT, CELL & ENVIRONMENT 2024; 47:1865-1876. [PMID: 38334166 DOI: 10.1111/pce.14842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
The response of plants to increasing atmospheric CO2 depends on the ecological context where the plants are found. Several experiments with elevated CO2 (eCO2) have been done worldwide, but the Amazonian forest understory has been neglected. As the central Amazon is limited by light and phosphorus, understanding how understory responds to eCO2 is important for foreseeing how the forest will function in the future. In the understory of a natural forest in the Central Amazon, we installed four open-top chambers as control replicates and another four under eCO2 (+250 ppm above ambient levels). Under eCO2, we observed increases in carbon assimilation rate (67%), maximum electron transport rate (19%), quantum yield (56%), and water use efficiency (78%). We also detected an increase in leaf area (51%) and stem diameter increment (65%). Central Amazon understory responded positively to eCO2 by increasing their ability to capture and use light and the extra primary productivity was allocated to supporting more leaf and conducting tissues. The increment in leaf area while maintaining transpiration rates suggests that the understory will increase its contribution to evapotranspiration. Therefore, this forest might be less resistant in the future to extreme drought, as no reduction in transpiration rates were detected.
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Affiliation(s)
- Amanda Rayane Damasceno
- Ecology Graduate Program, National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Sabrina Garcia
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Izabela Fonseca Aleixo
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | | | - Iokanam Sales Pereira
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | | | - Vanessa Rodrigues Ferrer
- Ecology Graduate Program, National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | | | - Thorsten E E Grams
- School of Life Sciences, Technical University of Munich (TUM), Freising, Germany
| | - Alacimar V Guedes
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Iain Paul Hartley
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
| | - Bart Kruijt
- Wageningen University, Water Systems and Global Change, Wageningen, Netherlands
| | | | - Nathielly Pires Martins
- Tropical Forest Sciences Graduate Program, National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Richard J Norby
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, UK
| | | | - Bruno Takeshi Tanaka Portela
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Anja Rammig
- School of Life Sciences, Technical University of Munich (TUM), Freising, Germany
| | - Leonardo Ramos de Oliveira
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Flávia Delgado Santana
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Yago Rodrigues Santos
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | | | - Gabriela Ushida
- Ecology Graduate Program, National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - David Montenegro Lapola
- Laboratório de Ciência do Sistema Terrestre - LabTerra, Centro de Pesquisas Meteorológicas e Climáticas Aplicadas à Agricultura - CEPAGRI, Universidade Estadual de Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Carlos Alberto Nobre Quesada
- Environmental Dynamics Coordination (CODAM), National Institute for Amazonian Research (INPA), Manaus, Amazonas, Brazil
| | - Tomas Ferreira Domingues
- Faculdde de Filosofia, Ciências e Letras de Ribeirão Preto, Departamento de Biologia, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
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23
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Huang J, Ladd SN, Ingrisch J, Kübert A, Meredith LK, van Haren J, Bamberger I, Daber LE, Kühnhammer K, Bailey K, Hu J, Fudyma J, Shi L, Dippold MA, Meeran K, Miller L, O’Brien MJ, Yang H, Herrera-Ramírez D, Hartmann H, Trumbore S, Bahn M, Werner C, Lehmann MM. The mobilization and transport of newly fixed carbon are driven by plant water use in an experimental rainforest under drought. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:2545-2557. [PMID: 38271585 PMCID: PMC11358253 DOI: 10.1093/jxb/erae030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/24/2024] [Indexed: 01/27/2024]
Abstract
Non-structural carbohydrates (NSCs) are building blocks for biomass and fuel metabolic processes. However, it remains unclear how tropical forests mobilize, export, and transport NSCs to cope with extreme droughts. We combined drought manipulation and ecosystem 13CO2 pulse-labeling in an enclosed rainforest at Biosphere 2, assessed changes in NSCs, and traced newly assimilated carbohydrates in plant species with diverse hydraulic traits and canopy positions. We show that drought caused a depletion of leaf starch reserves and slowed export and transport of newly assimilated carbohydrates below ground. Drought effects were more pronounced in conservative canopy trees with limited supply of new photosynthates and relatively constant water status than in those with continual photosynthetic supply and deteriorated water status. We provide experimental evidence that local utilization, export, and transport of newly assimilated carbon are closely coupled with plant water use in canopy trees. We highlight that these processes are critical for understanding and predicting tree resistance and ecosystem fluxes in tropical forest under drought.
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Affiliation(s)
- Jianbei Huang
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
| | - S Nemiah Ladd
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland
| | - Johannes Ingrisch
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
- Department of Ecology, University of Innsbruck, Sternwartestr 15, 6020 Innsbruck, Austria
| | - Angelika Kübert
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Laura K Meredith
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ 85721, USA
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
| | - Joost van Haren
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- Honors College, University of Arizona, 1101 East Mabel Street, Tucson, AZ 85719, USA
| | - Ines Bamberger
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
- Atmospheric Chemistry Group, University of Bayreuth (BayCEER), Germany
| | - L Erik Daber
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Kathrin Kühnhammer
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Kinzie Bailey
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ 85721, USA
| | - Jia Hu
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ 85721, USA
| | - Jane Fudyma
- Department of Environmental Science, University of Arizona, Tucson, AZ, USA
- Department of Land, Air, and Water Resources, University of California, Davis, CA, USA
| | - Lingling Shi
- Biogeochemistry of Agroecosystems, University of Göttingen, Göttingen, Germany
- Geo-Biosphere Interactions, University of Tuebingen, Tuebingen, Germany
| | - Michaela A Dippold
- Biogeochemistry of Agroecosystems, University of Göttingen, Göttingen, Germany
- Geo-Biosphere Interactions, University of Tuebingen, Tuebingen, Germany
| | - Kathiravan Meeran
- Department of Ecology, University of Innsbruck, Sternwartestr 15, 6020 Innsbruck, Austria
| | - Luke Miller
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
| | - Michael J O’Brien
- Estación Experimental de Zonas Áridas, Consejo Superior de Investigaciones Científicas, Almería, Spain
| | - Hui Yang
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
| | | | - Henrik Hartmann
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
- Institute for Forest Protection, Julius Kühn Institute (JKI) - Federal Research Centre for Cultivated Plants, Erwin-Baur-Straße 27, D-06484 Quedlinburg, Germany
| | - Susan Trumbore
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
| | - Michael Bahn
- Department of Ecology, University of Innsbruck, Sternwartestr 15, 6020 Innsbruck, Austria
| | - Christiane Werner
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Marco M Lehmann
- Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
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24
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Zhang-Zheng H, Adu-Bredu S, Duah-Gyamfi A, Moore S, Addo-Danso SD, Amissah L, Valentini R, Djagbletey G, Anim-Adjei K, Quansah J, Sarpong B, Owusu-Afriyie K, Gvozdevaite A, Tang M, Ruiz-Jaen MC, Ibrahim F, Girardin CAJ, Rifai S, Dahlsjö CAL, Riutta T, Deng X, Sun Y, Prentice IC, Oliveras Menor I, Malhi Y. Contrasting carbon cycle along tropical forest aridity gradients in West Africa and Amazonia. Nat Commun 2024; 15:3158. [PMID: 38605006 PMCID: PMC11009382 DOI: 10.1038/s41467-024-47202-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 03/22/2024] [Indexed: 04/13/2024] Open
Abstract
Tropical forests cover large areas of equatorial Africa and play a substantial role in the global carbon cycle. However, there has been a lack of biometric measurements to understand the forests' gross and net primary productivity (GPP, NPP) and their allocation. Here we present a detailed field assessment of the carbon budget of multiple forest sites in Africa, by monitoring 14 one-hectare plots along an aridity gradient in Ghana, West Africa. When compared with an equivalent aridity gradient in Amazonia, the studied West African forests generally had higher productivity and lower carbon use efficiency (CUE). The West African aridity gradient consistently shows the highest NPP, CUE, GPP, and autotrophic respiration at a medium-aridity site, Bobiri. Notably, NPP and GPP of the site are the highest yet reported anywhere for intact forests. Widely used data products substantially underestimate productivity when compared to biometric measurements in Amazonia and Africa. Our analysis suggests that the high productivity of the African forests is linked to their large GPP allocation to canopy and semi-deciduous characteristics.
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Affiliation(s)
- Huanyuan Zhang-Zheng
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom.
- Leverhulme Centre for Nature Recovery, University of Oxford, Oxford, United Kingdom.
| | - Stephen Adu-Bredu
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
- Department of Natural Resources Management, CSIR College of Science and Technology, Kumasi, Ghana
| | - Akwasi Duah-Gyamfi
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | - Sam Moore
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
| | - Shalom D Addo-Danso
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | - Lucy Amissah
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | | | - Gloria Djagbletey
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | - Kelvin Anim-Adjei
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | - John Quansah
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | - Bernice Sarpong
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | - Kennedy Owusu-Afriyie
- Forestry Research Institute of Ghana, Council for Scientific and Industrial Research, Kumasi, Ghana
| | - Agne Gvozdevaite
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
| | - Minxue Tang
- Georgina Mace Centre for the Living Planet, Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, United Kingdom
| | - Maria C Ruiz-Jaen
- Forestry Division, Food and Agriculture Organization of the United Nations, Panama City, Panama
| | - Forzia Ibrahim
- Department of Forest Ecology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Praha, Czech Republic
| | - Cécile A J Girardin
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
| | - Sami Rifai
- School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Cecilia A L Dahlsjö
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
| | - Terhi Riutta
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
| | - Xiongjie Deng
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
| | - Yuheng Sun
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, P.O. Box 11103, 9700 CC, Groningen, The Netherlands
| | - Iain Colin Prentice
- Georgina Mace Centre for the Living Planet, Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, United Kingdom
- Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University, Beijing, China
| | - Imma Oliveras Menor
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom
- AMAP (Botanique et Modelisation de l'Architecture des Plantes et des Végétations), CIRAD, CNRS, INRA, IRD,Université de Montpellier, Montpellier, France
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom.
- Leverhulme Centre for Nature Recovery, University of Oxford, Oxford, United Kingdom.
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25
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Cox AJF, González-Caro S, Meir P, Hartley IP, Restrepo Z, Villegas JC, Sanchez A, Mercado LM. Variable thermal plasticity of leaf functional traits in Andean tropical montane forests. PLANT, CELL & ENVIRONMENT 2024; 47:731-750. [PMID: 38047584 DOI: 10.1111/pce.14778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 11/08/2023] [Accepted: 11/21/2023] [Indexed: 12/05/2023]
Abstract
Tropical montane forests (TMFs) are biodiversity hotspots and provide vital ecosystem services, but they are disproportionately vulnerable to climate warming. In the Andes, cold-affiliated species from high elevations are being displaced at the hot end of their thermal distributions by warm-affiliated species migrating upwards from lower elevations, leading to compositional shifts. Leaf functional traits are strong indicators of plant performance and at the community level have been shown to vary along elevation gradients, reflecting plant adaptations to different environmental niches. However, the plastic response of such traits to relatively rapid temperature change in Andean TMF species remains unknown. We used three common garden plantations within a thermosequence in the Colombian Andes to investigate the warming and cooling responses of key leaf functional traits in eight cold- and warm-affiliated species with variable thermal niches. Cold-affiliated species shifted their foliar nutrient concentrations when exposed to warming, while all other traits did not significantly change; contrastingly, warm-affiliated species were able to adjust structural, nutrient and water-use efficiency traits from acquisitive to conservative strategies in response to cooling. Our findings suggest that cold-affiliated species will struggle to acclimate functional traits to warming, conferring warm-affiliated species a competitive advantage under climate change.
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Affiliation(s)
- Andrew J F Cox
- Department of Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
| | - Sebastián González-Caro
- Department of Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
| | - Patrick Meir
- School of Geosciences, University of Edinburgh, Edinburgh, UK
- Division of Plant Sciences, Research, The Australian National University, Canberra, Australia
| | - Iain P Hartley
- Department of Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
| | - Zorayda Restrepo
- Grupo de Investigación en Ecología Aplicada, Universidad de Antioquia, Medellín, Colombia
- Grupo de Servicios Ecositémicos y Cambio Climático, Corporación, Medellín, Colombia
| | - Juan C Villegas
- Grupo de Investigación en Ecología Aplicada, Universidad de Antioquia, Medellín, Colombia
| | - Adriana Sanchez
- Programa de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Lina M Mercado
- Department of Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
- UK Centre for Ecology & Hydrology, Crowmarsh-Gifford, Wallingford, UK
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26
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Cheng Y, Lawrence DM, Pan M, Zhang B, Graham NT, Lawrence PJ, Liu Z, He X. A bioenergy-focused versus a reforestation-focused mitigation pathway yields disparate carbon storage and climate responses. Proc Natl Acad Sci U S A 2024; 121:e2306775121. [PMID: 38315850 PMCID: PMC10873610 DOI: 10.1073/pnas.2306775121] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 12/04/2023] [Indexed: 02/07/2024] Open
Abstract
Limiting global warming to 2 °C requires urgent action on land-based mitigation. This study evaluates the biogeochemical and biogeophysical implications of two alternative land-based mitigation scenarios that aim to achieve the same radiative forcing. One scenario is primarily driven by bioenergy expansion (SSP226Lu-BIOCROP), while the other involves re/afforestation (SSP126Lu-REFOREST). We find that overall, SSP126Lu-REFOREST is a more efficient strategy for removing CO2 from the atmosphere by 2100, resulting in a net carbon sink of 242 ~ 483 PgC with smaller uncertainties compared to SSP226Lu-BIOCROP, which exhibits a wider range of -78 ~ 621 PgC. However, SSP126Lu-REFOREST leads to a relatively warmer planetary climate than SSP226Lu-BIOCROP, and this relative warming can be intensified in certain re/afforested regions where local climates are not favorable for tree growth. Despite the cooling effect on a global scale, SSP226Lu-BIOCROP reshuffles regional warming hotspots, amplifying summer temperatures in vulnerable tropical regions such as Central Africa and Southeast Asia. Our findings highlight the need for strategic land use planning to identify suitable regions for re/afforestation and bioenergy expansion, thereby improving the likelihood of achieving the intended climate mitigation outcomes.
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Affiliation(s)
- Yanyan Cheng
- Department of Industrial Systems Engineering and Management, National University of Singapore, 117576, Singapore
| | - David M. Lawrence
- Climate and Global Dynamics Laboratory, National Science Foundation National Center for Atmospheric Research, Boulder, CO80305
| | - Ming Pan
- Center for Western Weather and Water Extremes, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA92093
| | - Baoqing Zhang
- Key Laboratory of Western China’s Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Gansu730000, China
| | - Neal T. Graham
- Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD20740
| | - Peter J. Lawrence
- Climate and Global Dynamics Laboratory, National Science Foundation National Center for Atmospheric Research, Boulder, CO80305
| | - Zhongfang Liu
- State Key Laboratory of Marine Geology, Tongji University, Shanghai200092, China
| | - Xiaogang He
- Department of Civil and Environmental Engineering, National University of Singapore, 117576, Singapore
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27
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Hogan JA, Domke GM, Zhu K, Johnson DJ, Lichstein JW. Climate change determines the sign of productivity trends in US forests. Proc Natl Acad Sci U S A 2024; 121:e2311132121. [PMID: 38227667 PMCID: PMC10823222 DOI: 10.1073/pnas.2311132121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 12/01/2023] [Indexed: 01/18/2024] Open
Abstract
Forests are integral to the global land carbon sink, which has sequestered ~30% of anthropogenic carbon emissions over recent decades. The persistence of this sink depends on the balance of positive drivers that increase ecosystem carbon storage-e.g., CO2 fertilization-and negative drivers that decrease it-e.g., intensifying disturbances. The net response of forest productivity to these drivers is uncertain due to the challenge of separating their effects from background disturbance-regrowth dynamics. We fit non-linear models to US forest inventory data (113,806 plot remeasurements in non-plantation forests from ~1999 to 2020) to quantify productivity trends while accounting for stand age, tree mortality, and harvest. Productivity trends were generally positive in the eastern United States, where climate change has been mild, and negative in the western United States, where climate change has been more severe. Productivity declines in the western United States cannot be explained by increased mortality or harvest; these declines likely reflect adverse climate-change impacts on tree growth. In the eastern United States, where data were available to partition biomass change into age-dependent and age-independent components, forest maturation and increasing productivity (likely due, at least in part, to CO2 fertilization) contributed roughly equally to biomass carbon sinks. Thus, adverse effects of climate change appear to overwhelm any positive drivers in the water-limited forests of the western United States, whereas forest maturation and positive responses to age-independent drivers contribute to eastern US carbon sinks. The future land carbon balance of forests will likely depend on the geographic extent of drought and heat stress.
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Affiliation(s)
- J. Aaron Hogan
- Department of Biology, University of Florida, Gainesville, FL32611
| | - Grant M. Domke
- Northern Research Station, United States Department of Agriculture Forest Service, Saint Paul, MN55108
| | - Kai Zhu
- School for Environment and Sustainability, University of Michigan, Ann Arbor, MI48109
| | - Daniel J. Johnson
- School of Forest, Fisheries, and Geomatics Sciences, University of Florida, Gainesville, FL32611
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28
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Cooper DLM, Lewis SL, Sullivan MJP, Prado PI, Ter Steege H, Barbier N, Slik F, Sonké B, Ewango CEN, Adu-Bredu S, Affum-Baffoe K, de Aguiar DPP, Ahuite Reategui MA, Aiba SI, Albuquerque BW, de Almeida Matos FD, Alonso A, Amani CA, do Amaral DD, do Amaral IL, Andrade A, de Andrade Miranda IP, Angoboy IB, Araujo-Murakami A, Arboleda NC, Arroyo L, Ashton P, Aymard C GA, Baider C, Baker TR, Balinga MPB, Balslev H, Banin LF, Bánki OS, Baraloto C, Barbosa EM, Barbosa FR, Barlow J, Bastin JF, Beeckman H, Begne S, Bengone NN, Berenguer E, Berry N, Bitariho R, Boeckx P, Bogaert J, Bonyoma B, Boundja P, Bourland N, Boyemba Bosela F, Brambach F, Brienen R, Burslem DFRP, Camargo JL, Campelo W, Cano A, Cárdenas S, Cárdenas López D, de Sá Carpanedo R, Carrero Márquez YA, Carvalho FA, Casas LF, Castellanos H, Castilho CV, Cerón C, Chapman CA, Chave J, Chhang P, Chutipong W, Chuyong GB, Cintra BBL, Clark CJ, Coelho de Souza F, Comiskey JA, Coomes DA, Cornejo Valverde F, Correa DF, Costa FRC, Costa JBP, Couteron P, Culmsee H, Cuni-Sanchez A, Dallmeier F, Damasco G, Dauby G, Dávila N, Dávila Doza HP, De Alban JDT, de Assis RL, De Canniere C, De Haulleville T, de Jesus Veiga Carim M, Demarchi LO, Dexter KG, Di Fiore A, Din HHM, Disney MI, Djiofack BY, Djuikouo MNK, Do TV, Doucet JL, Draper FC, Droissart V, Duivenvoorden JF, Engel J, Estienne V, Farfan-Rios W, Fauset S, Feeley KJ, Feitosa YO, Feldpausch TR, Ferreira C, Ferreira J, Ferreira LV, Fletcher CD, Flores BM, Fofanah A, Foli EG, Fonty É, Fredriksson GM, Fuentes A, Galbraith D, Gallardo Gonzales GP, Garcia-Cabrera K, García-Villacorta R, Gomes VHF, Gómez RZ, Gonzales T, Gribel R, Guedes MC, Guevara JE, Hakeem KR, Hall JS, Hamer KC, Hamilton AC, Harris DJ, Harrison RD, Hart TB, Hector A, Henkel TW, Herbohn J, Hockemba MBN, Hoffman B, Holmgren M, Honorio Coronado EN, Huamantupa-Chuquimaco I, Hubau W, Imai N, Irume MV, Jansen PA, Jeffery KJ, Jimenez EM, Jucker T, Junqueira AB, Kalamandeen M, Kamdem NG, Kartawinata K, Kasongo Yakusu E, Katembo JM, Kearsley E, Kenfack D, Kessler M, Khaing TT, Killeen TJ, Kitayama K, Klitgaard B, Labrière N, Laumonier Y, Laurance SGW, Laurance WF, Laurent F, Le TC, Le TT, Leal ME, Leão de Moraes Novo EM, Levesley A, Libalah MB, Licona JC, Lima Filho DDA, Lindsell JA, Lopes A, Lopes MA, Lovett JC, Lowe R, Lozada JR, Lu X, Luambua NK, Luize BG, Maas P, Magalhães JLL, Magnusson WE, Mahayani NPD, Makana JR, Malhi Y, Maniguaje Rincón L, Mansor A, Manzatto AG, Marimon BS, Marimon-Junior BH, Marshall AR, Martins MP, Mbayu FM, de Medeiros MB, Mesones I, Metali F, Mihindou V, Millet J, Milliken W, Mogollón HF, Molino JF, Mohd Said MN, Monteagudo Mendoza A, Montero JC, Moore S, Mostacedo B, Mozombite Pinto LF, Mukul SA, Munishi PKT, Nagamasu H, Nascimento HEM, Nascimento MT, Neill D, Nilus R, Noronha JC, Nsenga L, Núñez Vargas P, Ojo L, Oliveira AA, de Oliveira EA, Ondo FE, Palacios Cuenca W, Pansini S, Pansonato MP, Paredes MR, Paudel E, Pauletto D, Pearson RG, Pena JLM, Pennington RT, Peres CA, Permana A, Petronelli P, Peñuela Mora MC, Phillips JF, Phillips OL, Pickavance G, Piedade MTF, Pitman NCA, Ploton P, Popelier A, Poulsen JR, Prieto A, Primack RB, Priyadi H, Qie L, Quaresma AC, de Queiroz HL, Ramirez-Angulo H, Ramos JF, Reis NFC, Reitsma J, Revilla JDC, Riutta T, Rivas-Torres G, Robiansyah I, Rocha M, Rodrigues DDJ, Rodriguez-Ronderos ME, Rovero F, Rozak AH, Rudas A, Rutishauser E, Sabatier D, Sagang LB, Sampaio AF, Samsoedin I, Satdichanh M, Schietti J, Schöngart J, Scudeller VV, Seuaturien N, Sheil D, Sierra R, Silman MR, Silva TSF, da Silva Guimarães JR, Simo-Droissart M, Simon MF, Sist P, Sousa TR, de Sousa Farias E, de Souza Coelho L, Spracklen DV, Stas SM, Steinmetz R, Stevenson PR, Stropp J, Sukri RS, Sunderland TCH, Suzuki E, Swaine MD, Tang J, Taplin J, Taylor DM, Tello JS, Terborgh J, Texier N, Theilade I, Thomas DW, Thomas R, Thomas SC, Tirado M, Toirambe B, de Toledo JJ, Tomlinson KW, Torres-Lezama A, Tran HD, Tshibamba Mukendi J, Tumaneng RD, Umaña MN, Umunay PM, Urrego Giraldo LE, Valderrama Sandoval EH, Valenzuela Gamarra L, Van Andel TR, van de Bult M, van de Pol J, van der Heijden G, Vasquez R, Vela CIA, Venticinque EM, Verbeeck H, Veridiano RKA, Vicentini A, Vieira ICG, Vilanova Torre E, Villarroel D, Villa Zegarra BE, Vleminckx J, von Hildebrand P, Vos VA, Vriesendorp C, Webb EL, White LJT, Wich S, Wittmann F, Zagt R, Zang R, Zartman CE, Zemagho L, Zent EL, Zent S. Consistent patterns of common species across tropical tree communities. Nature 2024; 625:728-734. [PMID: 38200314 PMCID: PMC10808064 DOI: 10.1038/s41586-023-06820-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 11/01/2023] [Indexed: 01/12/2024]
Abstract
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations1-6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth's 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world's most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees.
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Affiliation(s)
- Declan L M Cooper
- Department of Geography, University College London, London, UK.
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, UK.
| | - Simon L Lewis
- Department of Geography, University College London, London, UK.
- School of Geography, University of Leeds, Leeds, UK.
| | - Martin J P Sullivan
- School of Geography, University of Leeds, Leeds, UK
- Department of Natural Sciences, Manchester Metropolitan University, Manchester, UK
| | - Paulo I Prado
- Instituto de Biociências, Departamento de Ecologia, Universidade de Sao Paulo (USP), São Paulo, Brazil
| | - Hans Ter Steege
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Quantitative Biodiversity Dynamics, Department of Biology, Utrecht University, Utrecht, The Netherlands
| | - Nicolas Barbier
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Ferry Slik
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Bonaventure Sonké
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Corneille E N Ewango
- Faculty of Renewable Natural Resources Management and Faculty of Sciences, University of Kisangani, Kisangani, Democratic Republic of the Congo
| | | | | | - Daniel P P de Aguiar
- Procuradoria-Geral de Justiça, Ministério Público do Estado do Amazonas, Manaus, Brazil
- Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Shin-Ichiro Aiba
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
| | - Bianca Weiss Albuquerque
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Alfonso Alonso
- Center for Conservation and Sustainability, Smithsonian Conservation Biology Institute, Washington, DC, USA
| | - Christian A Amani
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
- Université Officielle de Bukavu, Bukavu, Democratic Republic of the Congo
| | | | - Iêda Leão do Amaral
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Ana Andrade
- Projeto Dinâmica Biológica de Fragmentos Florestais, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Ilondea B Angoboy
- Institut National pour l'Etude et la Recherche Agronomiques, Bukavu, Democratic Republic of the Congo
| | - Alejandro Araujo-Murakami
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel Rene Moreno, Santa Cruz, Santa Cruz, Bolivia
| | | | - Luzmila Arroyo
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel Rene Moreno, Santa Cruz, Santa Cruz, Bolivia
| | - Peter Ashton
- Bullard Emeritus Professor of Forestry, Harvard University, Cambridge, MA, USA
| | - Gerardo A Aymard C
- Programa de Ciencias del Agro y el Mar, Herbario Universitario (PORT), UNELLEZ-Guanare, Guanare, Venezuela
| | - Cláudia Baider
- The Mauritius Herbarium, Agricultural Services, Ministry of Agro-Industry and Food Security, Reduit, Mauritius
- Instituto de Biociências, Departamento de Ecologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | | | | | - Henrik Balslev
- Department of Biology, Aarhus University, Aarhus C, Aarhus, Denmark
| | | | - Olaf S Bánki
- Naturalis Biodiversity Center, Leiden, The Netherlands
| | - Chris Baraloto
- International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, FL, USA
| | | | | | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Jean-Francois Bastin
- TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
| | - Hans Beeckman
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Serge Begne
- School of Geography, University of Leeds, Leeds, UK
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Erika Berenguer
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | | | - Robert Bitariho
- Institute of Tropical Forest Conservation, Mbarara University of Science and Technology (MUST), Mbarara, Uganda
| | - Pascal Boeckx
- Isotope Bioscience Laboratory (ISOFYS), Ghent University, Ghent, Belgium
| | - Jan Bogaert
- Biodiversity and Landscape Unit, Gembloux Agro-Bio Tech, Université de Liege, Liège, Belgium
| | - Bernard Bonyoma
- Section de la Foresterie, Institut National pour l'Etude et la Recherche Agronomique Yangambi, Yangambi, Democratic Republic of the Congo
| | - Patrick Boundja
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
- Congo Programme, Wildlife Conservation Society, Brazzaville, Republic of Congo
| | - Nils Bourland
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- CIFOR, Bogor, Indonesia
- Forest Resources Management, Gembloux Agro-Bio Tech, University of Liège, Liège, Belgium
- Resources and Synergies Development, Singapore, Singapore
| | - Faustin Boyemba Bosela
- Laboratory of Ecology and Forest Management, Faculty of Sciences, University of Kisangani, Kisangani, Democratic Republic of the Congo
| | - Fabian Brambach
- Biodiversity, Macroecology and Biogeography, University of Göttingen, Göttingen, Germany
| | - Roel Brienen
- School of Geography, University of Leeds, Leeds, UK
| | | | - José Luís Camargo
- Projeto Dinâmica Biológica de Fragmentos Florestais, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Wegliane Campelo
- Universidade Federal do Amapá, Ciências Ambientais, Macapá, Brazil
| | - Angela Cano
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
- Cambridge University Botanic Garden, Cambridge, UK
| | - Sasha Cárdenas
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
| | | | | | | | - Fernanda Antunes Carvalho
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Belo Horizonte, Brazil
| | - Luisa Fernanda Casas
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
| | - Hernán Castellanos
- Centro de Investigaciones Ecológicas de Guayana, Universidad Nacional Experimental de Guayana, Puerto Ordaz, Venezuela
| | - Carolina V Castilho
- Centro de Pesquisa Agroflorestal de Roraima, Embrapa Roraima, Boa Vista, Brazil
| | - Carlos Cerón
- Escuela de Biología Herbario Alfredo Paredes, Universidad Central, Quito, Ecuador
| | - Colin A Chapman
- Biology Department, Vancouver Island University, Nanaimo, British Columbia, Canada
- Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China
- School of Life Sciences, University of KwaZulu-Natal, Scottsville, South Africa
| | - Jerome Chave
- Laboratoire Évolution et Diversité Biologique, CNRS and Université Paul Sabatier, Toulouse, France
| | - Phourin Chhang
- Institute of Forest and Wildlife Research and Development (IRD), Phnom Penh, Cambodia
| | - Wanlop Chutipong
- Conservation Ecology Program, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - George B Chuyong
- Faculty of Science, Department of Plant Science, University of Buea, Buea, Cameroon
| | | | - Connie J Clark
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Fernanda Coelho de Souza
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- University of Leeds, Leeds, UK
- BeZero, London, UK
| | - James A Comiskey
- Inventory and Monitoring Program, National Park Service, Fredericksburg, VA, USA
- Smithsonian Conservation Biology Institute, Washington, DC, USA
| | - David A Coomes
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, UK
| | | | - Diego F Correa
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
- The University of Queensland, Brisbane, Queensland, Australia
| | - Flávia R C Costa
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Pierre Couteron
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Heike Culmsee
- State Agency for Environment, Nature Conservation and Geology, Güstrow, Germany
| | - Aida Cuni-Sanchez
- Department of Environment and Geography, University of York, York, UK
- Department of International Environmental and Development Studies (NORAGRIC), Norwegian University of Life Sciences, Ås, Norway
| | - Francisco Dallmeier
- Center for Conservation and Sustainability, Smithsonian Conservation Biology Institute, Washington, DC, USA
| | - Gabriel Damasco
- Gothenburg Global Biodiversity Centre, University of Gothenburg, Gothenburg, Sweden
| | - Gilles Dauby
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Nállarett Dávila
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | | | - Jose Don T De Alban
- Centre for Nature-Based Climate Solutions, Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Phillipines Programme, Fauna and Flora International, Cambridge, UK
| | - Rafael L de Assis
- Biodiversity and Ecosystem Services, Instituto Tecnológico Vale, Belém, Brazil
| | - Charles De Canniere
- Landscape Ecology and Vegetal Production Systems Unit, Universite Libre de Bruxelles, Brussels, Belgium
| | | | | | - Layon O Demarchi
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Kyle G Dexter
- School of Geosciences, University of Edinburgh, Edinburgh, UK
- Royal Botanic Garden Edinburgh, Edinburgh, UK
| | - Anthony Di Fiore
- Department of Anthropology, University of Texas at Austin, Austin, TX, USA
- Estación de Biodiversidad Tiputini, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Quito, Ecuador
| | - Hazimah Haji Mohammad Din
- Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam
| | | | - Brice Yannick Djiofack
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Institut National pour l'Etude et la Recherche Agronomiques (INERA), Wood Laboratory of Yangambi, Yangambi, Democratic Republic of the Congo
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Marie-Noël K Djuikouo
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Faculty of Science, Department of Plant Science, University of Buea, Buea, Cameroon
| | - Tran Van Do
- Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam
| | - Jean-Louis Doucet
- Forest Is Life, TERRA, Gembloux Agro-Bio Tech, Liège University, Liège, Belgium
| | - Freddie C Draper
- Department of Geography and Planning, University of Liverpool, Liverpool, UK
| | - Vincent Droissart
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Joost F Duivenvoorden
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Julien Engel
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- Florida International University, Miami, FL, USA
| | - Vittoria Estienne
- Congo Programme, Wildlife Conservation Society, Brazzaville, Republic of Congo
| | - William Farfan-Rios
- Living Earth Collaborative, Washington University in Saint Louis, St Louis, MO, USA
- Missouri Botanical Garden, St Louis, MO, USA
| | - Sophie Fauset
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, UK
| | - Kenneth J Feeley
- Department of Biology, University of Miami, Coral Gables, FL, USA
- Fairchild Tropical Botanic Garden, Coral Gables, FL, USA
| | - Yuri Oliveira Feitosa
- Programa de Pós-Graduação em Biologia (Botânica), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Ted R Feldpausch
- University of Leeds, Leeds, UK
- Department of Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Cid Ferreira
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Joice Ferreira
- Empresa Brasileira de Pesquisa Agropecuária, Embrapa Amazônia Oriental, Belém, Brazil
| | | | | | | | | | - Ernest G Foli
- Forestry Research Institute of Ghana (FORIG), Kumasi, Ghana
| | - Émile Fonty
- Direction Régionale de la Guyane, Office National des Forêts, Cayenne, French Guiana
- Université de Montpellier, Montpellier, France
| | | | - Alfredo Fuentes
- Missouri Botanical Garden, St Louis, MO, USA
- Herbario Nacional de Bolivia, Instituto de Ecología, Carrera de Biología, Universidad Mayor de San Andrés, La Paz, Bolivia
| | | | | | - Karina Garcia-Cabrera
- Biology Department and Center for Energy, Environment and Sustainability, Wake Forest University, Winston Salem, NC, USA
| | - Roosevelt García-Villacorta
- Programa Restauración de Ecosistemas (PRE), Centro de Innovación Científica Amazónica (CINCIA), Tambopata, Peru
- Peruvian Center for Biodiversity and Conservation (PCBC), Iquitos, Peru
| | - Vitor H F Gomes
- Escola de Negócios Tecnologia e Inovação, Centro Universitário do Pará, Belém, Brazil
- Universidade Federal do Pará, Belém, Brazil
| | - Ricardo Zárate Gómez
- PROTERRA, Instituto de Investigaciones de la Amazonía Peruana (IIAP), Iquitos, Peru
| | | | - Rogerio Gribel
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Juan Ernesto Guevara
- Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud-BIOMAS, Universidad de las Américas, Quito, Ecuador
- The Field Museum, Chicago, IL, USA
| | - Khalid Rehman Hakeem
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jefferson S Hall
- Forest Global Earth Observatory (ForestGEO), Smithsonian Tropical Research Institute, Washington, DC, USA
| | | | - Alan C Hamilton
- Honorary Professor, Kunming Institute of Botany, Chinese Academy of Science, Kunming, China
| | | | | | - Terese B Hart
- Lukuru Wildlife Research Foundation, Kinshasa, Democratic Republic of the Congo
- Division of Vertebrate Zoology, Yale Peabody Museum of Natural History, New Haven, CT, USA
| | - Andy Hector
- Department of Plant Sciences, University of Oxford, Oxford, UK
| | - Terry W Henkel
- Department of Biological Sciences, California State Polytechnic University, Humboldt, Arcata, CA, USA
| | - John Herbohn
- Tropical Forests and People Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia
| | | | | | - Milena Holmgren
- Resource Ecology Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Euridice N Honorio Coronado
- Instituto de Investigaciones de la Amazonía Peruana (IIAP), Iquitos, Peru
- University of St Andrews, St Andrews, UK
| | | | - Wannes Hubau
- School of Geography, University of Leeds, Leeds, UK
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Department of Environment, Laboratory of Wood Technology (Woodlab), Ghent University, Ghent, Belgium
| | - Nobuo Imai
- Department of Forest Science, Tokyo University of Agriculture, Tokyo, Japan
| | - Mariana Victória Irume
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Patrick A Jansen
- Smithsonian Tropical Research Institute, Ancon, Panama
- Department of Environmental Sciences, Wageningen University and Research, Wageningen, The Netherlands
| | - Kathryn J Jeffery
- Department of Biological and Environmental Sciences, University of Stirling, Stirling, UK
| | - Eliana M Jimenez
- Grupo de Ecología y Conservación de Fauna y Flora Silvestre, Instituto Amazónico de Investigaciones Imani, Universidad Nacional de Colombia sede Amazonia, Leticia, Colombia
| | - Tommaso Jucker
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - André Braga Junqueira
- Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Michelle Kalamandeen
- School of Earth, Environment and Society, McMaster University, Hamilton, Ontario, Canada
| | - Narcisse G Kamdem
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Kuswata Kartawinata
- Integrative Research Center, The Field Museum of Natural History, Chicago, IL, USA
| | - Emmanuel Kasongo Yakusu
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
- Faculté de Gestion de Ressources Naturelles Renouvelables, Université de Kisangani, Kisangani, Democratic Republic of the Congo
| | - John M Katembo
- Laboratory of Ecology and Forest Management, Faculty of Sciences, University of Kisangani, Kisangani, Democratic Republic of the Congo
| | - Elizabeth Kearsley
- Computational and Applied Vegetation Ecology (CAVElab), Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - David Kenfack
- Forest Global Earth Observatory (ForestGEO), Smithsonian Tropical Research Institute, Washington, DC, USA
| | - Michael Kessler
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - Thiri Toe Khaing
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, China
- University of the Chinese Academy of Sciences, Beijing, China
| | | | | | - Bente Klitgaard
- Department for Accelerated Taxonomy, Royal Botanic Gardens, Richmond, UK
| | - Nicolas Labrière
- Laboratoire Évolution et Diversité Biologique, CNRS and Université Paul Sabatier, Toulouse, France
| | - Yves Laumonier
- Forest and Environment Program, Center for International Forestry Research (CIFOR), Bogor, Indonesia
| | - Susan G W Laurance
- Centre for Tropical Environmental and Sustainability Science and College of Science and Engineering, James Cook University, Cairns, Queensland, Australia
| | - William F Laurance
- Centre for Tropical Environmental and Sustainability Science and College of Science and Engineering, James Cook University, Cairns, Queensland, Australia
| | - Félix Laurent
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Institut National pour l'Etude et la Recherche Agronomiques (INERA), Wood Laboratory of Yangambi, Yangambi, Democratic Republic of the Congo
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Tinh Cong Le
- Viet Nature Conservation Centre, Hanoi, Viet Nam
| | | | - Miguel E Leal
- Uganda Programme, Wildlife Conservation Society, Kampala, Uganda
| | | | | | - Moses B Libalah
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
- Department of Plant Biology, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Juan Carlos Licona
- Instituto Boliviano de Investigacion Forestal, Santa Cruz, Santa Cruz, Bolivia
| | | | | | - Aline Lopes
- Department of Ecology, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | | | - Jon C Lovett
- School of Geography, University of Leeds, Leeds, UK
- Herbarium, Royal Botanic Gardens Kew, Richmond, UK
| | - Richard Lowe
- Botany Department, University of Ibadan, Ibadan, Nigeria
| | - José Rafael Lozada
- Facultad de Ciencias Forestales y Ambientales, Instituto de Investigaciones para el Desarrollo Forestal, Universidad de los Andes, Mérida, Mérida, Venezuela
| | - Xinghui Lu
- Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Nestor K Luambua
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Institut National pour l'Etude et la Recherche Agronomiques (INERA), Wood Laboratory of Yangambi, Yangambi, Democratic Republic of the Congo
- Faculty of Renewable Natural Resources Management, University of Kisangani, Kisangani, Democratic Republic of the Congo
- Faculté des sciences Agronomiques, Université Officielle de Mbujimayi, Mbujimayi, Democratic Republic of the Congo
| | - Bruno Garcia Luize
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Paul Maas
- Naturalis Biodiversity Center, Leiden, The Netherlands
| | - José Leonardo Lima Magalhães
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, Brazil
- Embrapa Amazônia Oriental, Belém, Brazil
| | - William E Magnusson
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Jean-Remy Makana
- Faculté des Sciences, Laboratoire d'Écologie et Aménagement Forestier, Université de Kisangani, Kisangani, Democratic Republic of the Congo
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Lorena Maniguaje Rincón
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Asyraf Mansor
- School of Biological Sciences, Universiti Sains Malaysia, George Town, Malaysia
- Centre for Marine and Coastal Studies, Universiti Sains Malaysia, George Town, Malaysia
| | | | - Beatriz S Marimon
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso, Nova Xavantina, Brazil
| | - Ben Hur Marimon-Junior
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso, Nova Xavantina, Brazil
| | - Andrew R Marshall
- Department of Environment and Geography, University of York, York, UK
- Flamingo Land, Kirby Misperton, UK
- Forest Research Institute, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - Maria Pires Martins
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | | | - Italo Mesones
- Department of Integrative Biology, University of California, Berkeley, CA, USA
| | - Faizah Metali
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam
| | - Vianet Mihindou
- Agence Nationale des Parcs Nationaux, Libreville, Gabon
- Ministère de la Forêt, de la Mer, de l'Environnement, Chargé du Plan Climat, Libreville, Gabon
| | - Jerome Millet
- Office français de la biodiversité, Vincennes, France
| | - William Milliken
- Department for Ecosystem Stewardship, Royal Botanic Gardens, Richmond, UK
| | | | - Jean-François Molino
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | | | - Abel Monteagudo Mendoza
- Jardín Botánico de Missouri, Oxapampa, Peru
- Herbario Vargas, Universidad Nacional de San Antonio Abad del Cusco, Cuzco, Peru
| | - Juan Carlos Montero
- Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Instituto Boliviano de Investigacion Forestal, Santa Cruz, Santa Cruz, Bolivia
| | - Sam Moore
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Bonifacio Mostacedo
- Facultad de Ciencias Agrícolas, Universidad Autónoma Gabriel René Moreno, Santa Cruz, Santa Cruz, Bolivia
| | | | - Sharif Ahmed Mukul
- Tropical Forests and People Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia
- Department of Environment and Development Studies, United International University, Dhaka, Bangladesh
| | - Pantaleo K T Munishi
- Department of Ecosystems and Conservation, Sokoine University of Agriculture, Morogoro, Tanzania
| | | | | | - Marcelo Trindade Nascimento
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goyatacazes, Brazil
| | - David Neill
- Universidad Estatal Amazónica, Puyo, Ecuador
| | | | | | - Laurent Nsenga
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Percy Núñez Vargas
- Herbario Vargas, Universidad Nacional de San Antonio Abad del Cusco, Cuzco, Peru
| | - Lucas Ojo
- University of Abeokuta, Abeokuta, Nigeria
| | - Alexandre A Oliveira
- Instituto de Biociências, Departamento de Ecologia, Universidade de Sao Paulo (USP), São Paulo, Brazil
| | - Edmar Almeida de Oliveira
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade do Estado de Mato Grosso, Nova Xavantina, Brazil
| | | | | | - Susamar Pansini
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia PPG-Bionorte, Universidade Federal de Rondônia, Porto Velho, Brazil
| | - Marcelo Petratti Pansonato
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Instituto de Biociências, Departamento de Ecologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | | | - Ekananda Paudel
- Centre for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Daniela Pauletto
- Instituto de Biodiversidade e Florestas, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | - Richard G Pearson
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, UK
| | | | - R Toby Pennington
- Royal Botanic Garden Edinburgh, Edinburgh, UK
- Department of Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Carlos A Peres
- School of Environmental Sciences, University of East Anglia, Norwich, UK
| | | | - Pascal Petronelli
- Cirad UMR Ecofog, AgrosParisTech, CNRS, INRAE, Université Guyane, Kourou Cedex, France
| | | | | | | | | | - Maria Teresa Fernandez Piedade
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Pierre Ploton
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Andreas Popelier
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- UGent-Woodlab, Laboratory of Wood Technology, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
- Faculté de Gestion de Ressources Naturelles Renouvelables, Université de Kisangani, Kisangani, Democratic Republic of the Congo
| | - John R Poulsen
- Nicholas School of the Environment, Duke University, Durham, NC, USA
- The Nature Conservancy, Boulder, CO, USA
| | - Adriana Prieto
- Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - Hari Priyadi
- Department of Resource and Environmental Economics (ESL), IPB University, Bogor, Indonesia
| | - Lan Qie
- School of Geography, University of Leeds, Leeds, UK
- School of Life Sciences, University of Lincoln, Lincoln, UK
| | - Adriano Costa Quaresma
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Wetland Department, Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Rastatt, Germany
| | - Helder Lima de Queiroz
- Diretoria Técnico-Científica, Instituto de Desenvolvimento Sustentável Mamirauá, Tefé, Brazil
| | - Hirma Ramirez-Angulo
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Mérida, Mérida, Venezuela
| | - José Ferreira Ramos
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Neidiane Farias Costa Reis
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia PPG-Bionorte, Universidade Federal de Rondônia, Porto Velho, Brazil
| | - Jan Reitsma
- Waardenburg Ecology, Culemborg, The Netherlands
| | | | - Terhi Riutta
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
- College of Life Sciences, University of Exeter, Exeter, UK
| | - Gonzalo Rivas-Torres
- Estación de Biodiversidad Tiputini, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito (USFQ), Quito, Ecuador
- University of Florida, Gainesville, FL, USA
| | - Iyan Robiansyah
- Department of Biological Sciences, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
- Center for Plant Conservation Bogor Botanic Gardens, Indonesian Institute of Science, Bogor, Indonesia
| | - Maira Rocha
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - M Elizabeth Rodriguez-Ronderos
- Centre for Nature-Based Climate Solutions, Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Department of Geography, National University of Singapore, Singapore, Singapore
| | - Francesco Rovero
- Deparment of Biology, University of Florence, Sesto Fiorentino, Italy
- Tropical Biodiversity Section, Museo delle Scienze (MUSE), Trento, Italy
| | - Andes H Rozak
- Research Center for Plant Conservation, Botanic Gardens and Forestry, National Research and Innovation Agency (BRIN), Bogor, Indonesia
| | - Agustín Rudas
- Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - Daniel Sabatier
- AMAP, Université de Montpellier, IRD, Cirad, CNRS, INRAE, Montpellier, France
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
| | - Le Bienfaiteur Sagang
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
- Institute of the Environment and Sustainability, University of California, Los Angeles, CA, USA
| | - Adeilza Felipe Sampaio
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia PPG-Bionorte, Universidade Federal de Rondônia, Porto Velho, Brazil
| | - Ismayadi Samsoedin
- Forest Research and Development Center, Research, Development and Innovation Agency, Ministry of Environment and Forestry, Bogor, Indonesia
| | - Manichanh Satdichanh
- Centre for Mountain Ecosystem Studies, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Juliana Schietti
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Jochen Schöngart
- Ecology, Monitoring and Sustainable Use of Wetlands (MAUA), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Veridiana Vizoni Scudeller
- Departamento de Biologia, Universidade Federal do Amazonas (UFAM)-Instituto de Ciências Biológicas (ICB1), Manaus, Brazil
| | | | - Douglas Sheil
- Forest Ecology and Forest Management Group, Wageningen University and Research, Wageningen, The Netherlands
| | | | - Miles R Silman
- Biology Department and Center for Energy, Environment and Sustainability, Wake Forest University, Winston Salem, NC, USA
| | | | | | - Murielle Simo-Droissart
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | | | - Plinio Sist
- Cirad-ES, Campus International de Baillarguet, TA C-105/D, Montpellier, France
| | - Thaiane R Sousa
- Programa de Pós-Graduação em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Emanuelle de Sousa Farias
- Laboratório de Ecologia de Doenças Transmissíveis da Amazônia (EDTA), Instituto Leônidas e Maria Deane, Fiocruz, Manaus, Brazil
- Instituto Oswaldo Cruz (IOC/FIOCRUZ), Rio de Janeiro, Brazil
| | - Luiz de Souza Coelho
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Suzanne M Stas
- School of Earth and Environment, University of Leeds, Leeds, UK
| | | | - Pablo R Stevenson
- Laboratorio de Ecología de Bosques Tropicales y Primatología, Universidad de los Andes, Bogotá, Colombia
| | - Juliana Stropp
- Biogeography Department, Trier University, Trier, Germany
| | - Rahayu S Sukri
- Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam
| | - Terry C H Sunderland
- Center for International Forestry Research (CIFOR), Bogor, Indonesia
- Faculty of Forestry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Eizi Suzuki
- Research Center for the Pacific Islands, Kagoshima University, Kagoshima, Japan
| | - Michael D Swaine
- Department of Plant and Soil Science, School of Biological Sciences, University of Aberdeen, Aberdeen, UK
| | - Jianwei Tang
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China
| | - James Taplin
- UK Research and Innovation, Innovate UK, London, UK
| | - David M Taylor
- Department of Geography, National University of Singapore, Singapore, Singapore
| | - J Sebastián Tello
- Center for Conservation and Sustainable Development, Missouri Botanical Garden, St Louis, MO, USA
| | - John Terborgh
- Department of Biology and Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- James Cook University, Cairns, Queensland, Australia
| | | | - Ida Theilade
- Department of Food and Resource Economics, University of Copenhagen, Copenhagen, Denmark
| | - Duncan W Thomas
- School of Biological Sciences, Washington State University, Vancouver, WA, USA
| | - Raquel Thomas
- Iwokrama International Centre for Rain Forest Conservation and Development, Georgetown, Guyana
| | - Sean C Thomas
- Institute of Forestry and Conservation, University of Toronto, Toronto, Ontario, Canada
| | | | - Benjamin Toirambe
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Ministère de l'Environnement et Développement Durable, Kinshasa, Democratic Republic of the Congo
| | | | - Kyle W Tomlinson
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, China
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, China
| | - Armando Torres-Lezama
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Mérida, Mérida, Venezuela
| | | | - John Tshibamba Mukendi
- Service of Wood Biology, Royal Museum for Central Africa, Tervuren, Belgium
- Faculté de Gestion de Ressources Naturelles Renouvelables, Université de Kisangani, Kisangani, Democratic Republic of the Congo
- Faculté des Sciences Appliquées, Université de Mbujimayi, Mbujimayi, Democratic Republic of the Congo
| | - Roven D Tumaneng
- Phillipines Programme, Fauna and Flora International, Cambridge, UK
- Emerging Technology Development Division, Department of Science and Technology Philippine Council for Industry, Energy and Emerging Technology Research and Development (DOST-PCIEERD), Taguig City, Philippines
| | - Maria Natalia Umaña
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - Peter M Umunay
- Wildlife Conservation Society, New York, NY, USA
- Yale School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA
| | | | - Elvis H Valderrama Sandoval
- Department of Biology, University of Missouri, St Louis, MO, USA
- Universidad Nacional de la Amazonia Peruana, Iquitos, Peru
| | | | - Tinde R Van Andel
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Wageningen University, Wageningen, The Netherlands
| | - Martin van de Bult
- Doi Tung Development Project, Social Development Department, Chiang Rai, Thailand
| | | | | | | | - César I A Vela
- Escuela Profesional de Ingeniería Forestal, Universidad Nacional de San Antonio Abad del Cusco, Puerto Maldonado, Peru
| | | | - Hans Verbeeck
- CAVElab-Computational and Applied Vegetation Ecology, Department of Environment, Ghent University, Ghent, Belgium
| | | | - Alberto Vicentini
- Coordenação de Pesquisas em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | | | - Emilio Vilanova Torre
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de los Andes, Mérida, Mérida, Venezuela
- Wildlife Conservation Society, New York, NY, USA
| | - Daniel Villarroel
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel Rene Moreno, Santa Cruz, Santa Cruz, Bolivia
- Fundación Amigos de la Naturaleza (FAN), Santa Cruz, Bolivia
| | | | - Jason Vleminckx
- International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, FL, USA
- Faculté des Sciences, Service d'Évolution Biologique et Écologie, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Vincent Antoine Vos
- Instituto de Investigaciones Forestales de la Amazonía, Universidad Autónoma del Beni José Ballivián, Riberalta, Beni, Bolivia
| | | | - Edward L Webb
- Viikki Tropical Resources Institute, Department of Forest Sciences, University of Helsinki, Helsinki, Finland
- Helsinki Institute of Sustainability Science (HELSUS), Helsinki, Finland
| | - Lee J T White
- Ministry of Forests, Seas, Environment and Climate, Libreville, Gabon
- Department of Biological and Environmental Sciences, University of Stirling, Stirling, UK
- Institut de Recherche en Écologie Tropicale, Libreville, Gabon
| | - Serge Wich
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Florian Wittmann
- Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
- Wetland Department, Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Rastatt, Germany
| | | | - Runguo Zang
- Key Laboratory of Forest Ecology and Environment of State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Charles Eugene Zartman
- Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Lise Zemagho
- International Joint Laboratory DYCOFAC, IRD-UYI-IRGM, Yaoundé, Cameroon
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - Egleé L Zent
- Laboratory of Human Ecology, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela
| | - Stanford Zent
- Laboratory of Human Ecology, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela
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Artaxo P. Amazon deforestation implications in local/regional climate change. Proc Natl Acad Sci U S A 2023; 120:e2317456120. [PMID: 38032950 PMCID: PMC10722968 DOI: 10.1073/pnas.2317456120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023] Open
Affiliation(s)
- Paulo Artaxo
- Center of Studies for Amazonian Sustainability, University of São Paulo, São Paulo05508-090, Brazil
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Feng H, Wang S, Zou B, Yang Z, Wang S, Wang W. Contribution of land use and cover change (LUCC) to the global terrestrial carbon uptake. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165932. [PMID: 37532046 DOI: 10.1016/j.scitotenv.2023.165932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 07/11/2023] [Accepted: 07/29/2023] [Indexed: 08/04/2023]
Abstract
Terrestrial carbon uptake is critical to the removal of greenhouse gases and mitigation of global warming, which are closely related to land use and cover change (LUCC). However, understanding terrestrial carbon uptake and the LUCC contribution remains unclear because of complex interactions with other drivers (particularly climate change). By proposing an innovative approach of "trajectory analysis", this study aimed to isolate the LUCC contribution to terrestrial carbon uptake over different scales. Methodologically, global land was first divided into sub-regions of land transformations and stable land trajectories. Then, the carbon uptake change in the stable land trajectory was taken as a synthetic influence of climate change, which was used as a reference to isolate the carbon uptake alternation generated from the LUCC contribution in the land transformation trajectories. Finally, future LUCC and the terrestrial carbon uptake response were predicted under different development pathways. The results showed the global mean net ecosystem production (NEP) was 27.44 ± 36.51 g C m-2 yr-1 in the past two decades (2001-2019), generating 3.15 ± 0.88 Pg C yr-1 of the total terrestrial carbon uptake. Both the NEP and total carbon uptake showed significant increasing trends. Specifically, the mean NEP increased from 17.96 g C m-2 yr-1 in 2001 to 37.37 g C m-2 yr-1 in 2019, with the trend written as y = 1.20× + 15.20 (R2 = 0.62, p < 0.01). Meanwhile, the total carbon uptake increased from 2.35 Pg C yr-1 in 2001 to 4.13 Pg C yr-1 in 2019, which could be written as y = 0.12× + 1.93 (R2 = 0.56, p < 0.01). Climate change acted as the dominant factor for the trends at the global scale, which contributed 21.26 g C m-2 yr-1 and 1.59 Pg C yr-1 of the mean NEP and total carbon uptake changes in the stable land trajectories (94.30 million km2 that covered 63.29 % of the global land area), and the historical LUCC contributed -6.30 g C m-2 yr-1 (-40.85 %) and - 0.046 Pg C yr-1 (-57.50 %) of the mean NEP and the total carbon uptake change in the land transformation trajectories (6.64 million km2 that covered 4.46 % of the global land area), respectively. The maximum LUCC contribution (-61.85 g C m-2 yr-1) to the mean NEP occurred in the land transformations from evergreen needleleaf forests to woody savannas, while the maximum contribution (-0.034 Pg C y-1) to total carbon uptake was in the deforested regions from evergreen broadleaf forests to woody savannas. Eight SSP-RCP scenarios predictions demonstrated that future terrestrial carbon uptake would increase by an average of 0.015 Pg C yr-1 in 2100 due to global afforestation. SSP4-3.4 and SSP5-3.4 had the greatest potential for increasing carbon uptake, which is expected to reach a maximum increase (0.045 Pg C yr-1) in 2100. In contrast, the minimum terrestrial carbon uptake would occur in SSP5-8.5, which had the highest CO2 emissions. In conclusion, although relatively limited at the global scale, LUCC (particularly forest change) exerted an unneglectable role on terrestrial carbon uptake in land transformation regions. The results of this study will help to clarify terrestrial carbon uptake dynamics and provide a basis for carbon neutral and climatic adaptation.
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Affiliation(s)
- Huihui Feng
- School of Geosciences and Info-Physics, Central South University, Changsha 410083, China; Key Laboratory of Spatio-temporal Information and Intelligent Services, Chinese Ministry of Natural Resources, Changsha 410083, China
| | - Shu Wang
- School of Geosciences and Info-Physics, Central South University, Changsha 410083, China; Key Laboratory of Urban Land Resources Monitoring and Simulation, Ministry of Natural Resources, Shenzhen 518000, China
| | - Bin Zou
- School of Geosciences and Info-Physics, Central South University, Changsha 410083, China; Key Laboratory of Spatio-temporal Information and Intelligent Services, Chinese Ministry of Natural Resources, Changsha 410083, China.
| | - Zhuoling Yang
- School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
| | - Shihan Wang
- School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
| | - Wei Wang
- School of Geosciences and Info-Physics, Central South University, Changsha 410083, China; Key Laboratory of Spatio-temporal Information and Intelligent Services, Chinese Ministry of Natural Resources, Changsha 410083, China.
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Heinrich V, House J, Gibbs DA, Harris N, Herold M, Grassi G, Cantinho R, Rosan TM, Zimbres B, Shimbo JZ, Melo J, Hales T, Sitch S, Aragão LEOC. Mind the gap: reconciling tropical forest carbon flux estimates from earth observation and national reporting requires transparency. CARBON BALANCE AND MANAGEMENT 2023; 18:22. [PMID: 37982938 PMCID: PMC10662451 DOI: 10.1186/s13021-023-00240-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/18/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND The application of different approaches calculating the anthropogenic carbon net flux from land, leads to estimates that vary considerably. One reason for these variations is the extent to which approaches consider forest land to be "managed" by humans, and thus contributing to the net anthropogenic flux. Global Earth Observation (EO) datasets characterising spatio-temporal changes in land cover and carbon stocks provide an independent and consistent approach to estimate forest carbon fluxes. These can be compared against results reported in National Greenhouse Gas Inventories (NGHGIs) to support accurate and timely measuring, reporting and verification (MRV). Using Brazil as a primary case study, with additional analysis in Indonesia and Malaysia, we compare a Global EO-based dataset of forest carbon fluxes to results reported in NGHGIs. RESULTS Between 2001 and 2020, the EO-derived estimates of all forest-related emissions and removals indicate that Brazil was a net sink of carbon (- 0.2 GtCO2yr-1), while Brazil's NGHGI reported a net carbon source (+ 0.8 GtCO2yr-1). After adjusting the EO estimate to use the Brazilian NGHGI definition of managed forest and other assumptions used in the inventory's methodology, the EO net flux became a source of + 0.6 GtCO2yr-1, comparable to the NGHGI. Remaining discrepancies are due largely to differing carbon removal factors and forest types applied in the two datasets. In Indonesia, the EO and NGHGI net flux estimates were similar (+ 0.6 GtCO2 yr-1), but in Malaysia, they differed in both magnitude and sign (NGHGI: -0.2 GtCO2 yr-1; Global EO: + 0.2 GtCO2 yr-1). Spatially explicit datasets on forest types were not publicly available for analysis from either NGHGI, limiting the possibility of detailed adjustments. CONCLUSIONS By adjusting the EO dataset to improve comparability with carbon fluxes estimated for managed forests in the Brazilian NGHGI, initially diverging estimates were largely reconciled and remaining differences can be explained. Despite limited spatial data available for Indonesia and Malaysia, our comparison indicated specific aspects where differing approaches may explain divergence, including uncertainties and inaccuracies. Our study highlights the importance of enhanced transparency, as set out by the Paris Agreement, to enable alignment between different approaches for independent measuring and verification.
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Affiliation(s)
- Viola Heinrich
- School of Geographical Sciences, University of Bristol, Bristol, UK.
- Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK.
- Section 1.4 Remote Sensing and Geoinformatics, Helmholtz GFZ German Research Centre of Geosciences, Telegrafenberg, Potsdam, Germany.
| | - Jo House
- School of Geographical Sciences, University of Bristol, Bristol, UK
| | | | | | - Martin Herold
- Section 1.4 Remote Sensing and Geoinformatics, Helmholtz GFZ German Research Centre of Geosciences, Telegrafenberg, Potsdam, Germany
- Wageningen University and Research, Wageningen, The Netherlands
| | - Giacomo Grassi
- Joint Research Centre, European Commission, Ispra, Italy
| | - Roberta Cantinho
- Centre for Sustainable Development (CDS), University of Brasília (UnB), Brasília, Brazil
| | - Thais M Rosan
- Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
| | - Barbara Zimbres
- Amazon Environmental Research Institute (IPAM), Brasília, Brazil
| | - Julia Z Shimbo
- Amazon Environmental Research Institute (IPAM), Brasília, Brazil
| | - Joana Melo
- Joint Research Centre, European Commission, Ispra, Italy
| | - Tristram Hales
- School of Earth and Environmental Sciences, Cardiff University, Cardiff, UK
| | - Stephen Sitch
- Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
| | - Luiz E O C Aragão
- Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK
- Earth Observation and Geoinformatics Division, National Institute for Space Research (INPE), São José Dos Campos, Brazil
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Ladd SN, Daber LE, Bamberger I, Kübert A, Kreuzwieser J, Purser G, Ingrisch J, Deleeuw J, van Haren J, Meredith LK, Werner C. Leaf-level metabolic changes in response to drought affect daytime CO2 emission and isoprenoid synthesis pathways. TREE PHYSIOLOGY 2023; 43:1917-1932. [PMID: 37552065 PMCID: PMC10643046 DOI: 10.1093/treephys/tpad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/28/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
In the near future, climate change will cause enhanced frequency and/or severity of droughts in terrestrial ecosystems, including tropical forests. Drought responses by tropical trees may affect their carbon use, including production of volatile organic compounds (VOCs), with implications for carbon cycling and atmospheric chemistry that are challenging to predict. It remains unclear how metabolic adjustments by mature tropical trees in response to drought will affect their carbon fluxes associated with daytime CO2 production and VOC emission. To address this gap, we used position-specific 13C-pyruvate labeling to investigate leaf CO2 and VOC fluxes from four tropical species before and during a controlled drought in the enclosed rainforest of Biosphere 2 (B2). Overall, plants that were more drought-sensitive had greater reductions in daytime CO2 production. Although daytime CO2 production was always dominated by non-mitochondrial processes, the relative contribution of CO2 from the tricarboxylic acid cycle tended to increase under drought. A notable exception was the legume tree Clitoria fairchildiana R.A. Howard, which had less anabolic CO2 production than the other species even under pre-drought conditions, perhaps due to more efficient refixation of CO2 and anaplerotic use for amino acid synthesis. The C. fairchildiana was also the only species to allocate detectable amounts of 13C label to VOCs and was a major source of VOCs in B2. In C. fairchildiana leaves, our data indicate that intermediates from the mevalonic acid (MVA) pathway are used to produce the volatile monoterpene trans-β-ocimene, but not isoprene. This apparent crosstalk between the MVA and methylerythritol phosphate pathways for monoterpene synthesis declined with drought. Finally, although trans-β-ocimene emissions increased under drought, it was increasingly sourced from stored intermediates and not de novo synthesis. Unique metabolic responses of legumes may play a disproportionate role in the overall changes in daytime CO2 and VOC fluxes in tropical forests experiencing drought.
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Affiliation(s)
- S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, Basel 4056, Switzerland
| | - L Erik Daber
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
| | - Ines Bamberger
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Atmospheric Chemistry Group, University of Bayreuth (BayCEER), Dr–Hans–Frisch–Straße 1–3, Bayreuth 95448, Germany
| | - Angelika Kübert
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Institute for Atmospheric and Earth System Research, University of Helsinki, Pietari Kalmin katu 5, Helsinki 00014, Finland
| | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
| | - Gemma Purser
- School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik EH26 0QB, UK
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Department of Ecology, University of Innsbruck, Sternwartestrasse 15, Innsbruck 6020, Austria
| | - Jason Deleeuw
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
| | - Joost van Haren
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- Honors College, University of Arizona, 1101 E. Mabel Street, Tucson, AZ 85719, USA
| | - Laura K Meredith
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ, 85721, USA
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
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Castillo-Figueroa D, González-Melo A, Posada JM. Wood density is related to aboveground biomass and productivity along a successional gradient in upper Andean tropical forests. FRONTIERS IN PLANT SCIENCE 2023; 14:1276424. [PMID: 38023915 PMCID: PMC10665531 DOI: 10.3389/fpls.2023.1276424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Wood density (WD) is a key functional trait related to ecological strategies and ecosystem carbon dynamics. Despite its importance, there is a considerable lack of information on WD in tropical Andean forests, particularly regarding its relationship with forest succession and ecosystem carbon cycling. Here, we quantified WD in 86 upper Andean tree and shrub species in central Colombia, with the aim of determining how WD changes with forest succession and how it is related to productivity. We hypothesized that WD will increase with succession because early successional forests will be colonized by acquisitive species, which typically have low WD, while the shaded understory of older forests should favor higher WD. We measured WD in 481 individuals from 27 shrub and 59 tree species, and quantified aboveground biomass (AGB), canopy height, net primary production (NPP) and species composition and abundance in 14, 400-m2, permanent plots. Mean WD was 0.513 ± 0.114 (g/cm3), with a range between 0.068 and 0.718 (g/cm3). Shrubs had, on average, higher WD (0.552 ± 0.095 g/cm3) than trees (0.488 ± 0.104 g/cm3). Community weighted mean WD (CWMwd) decreased with succession (measured as mean canopy height, AGB, and basal area); CWMwd also decreased with aboveground NPP and stem growth. In contrast, the percentage of NPP attributed to litter and the percent of shrubs in plots increased with CWMwd. Thus, our hypothesis was not supported because early successional forests had higher CWMwd than late successional forests. This was related to a high proportion of shrubs (with high WD) early in succession, which could be a consequence of: 1) a low seed availability of trees due to intense land use in the landscape and/or 2) harsh abiotic conditions early in succession that filter out trees. Forest with high CWMwd had a high %NPP attributed to litter because they were dominated by shrubs, which gain little biomass in their trunks. Our findings highlight the links between WD, succession and carbon cycling (biomass and productivity) in this biodiversity hotspot. Thus, WD is an important trait that can be used to understand upper Andean forest recovery and improve forest restoration and management practices.
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Affiliation(s)
| | | | - Juan M. Posada
- Biology Department, Faculty of Natural Sciences, Universidad del Rosario, Bogota, Colombia
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Binks O, Cernusak LA, Liddell M, Bradford M, Coughlin I, Bryant C, Palma AC, Hoffmann L, Alam I, Carle HJ, Rowland L, Oliveira RS, Laurance SGW, Mencuccini M, Meir P. Vapour pressure deficit modulates hydraulic function and structure of tropical rainforests under nonlimiting soil water supply. THE NEW PHYTOLOGIST 2023; 240:1405-1420. [PMID: 37705460 DOI: 10.1111/nph.19257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 08/07/2023] [Indexed: 09/15/2023]
Abstract
Atmospheric conditions are expected to become warmer and drier in the future, but little is known about how evaporative demand influences forest structure and function independently from soil moisture availability, and how fast-response variables (such as canopy water potential and stomatal conductance) may mediate longer-term changes in forest structure and function in response to climate change. We used two tropical rainforest sites with different temperatures and vapour pressure deficits (VPD), but nonlimiting soil water supply, to assess the impact of evaporative demand on ecophysiological function and forest structure. Common species between sites allowed us to test the extent to which species composition, relative abundance and intraspecific variability contributed to site-level differences. The highest VPD site had lower midday canopy water potentials, canopy conductance (gc ), annual transpiration, forest stature, and biomass, while the transpiration rate was less sensitive to changes in VPD; it also had different height-diameter allometry (accounting for 51% of the difference in biomass between sites) and higher plot-level wood density. Our findings suggest that increases in VPD, even in the absence of soil water limitation, influence fast-response variables, such as canopy water potentials and gc , potentially leading to longer-term changes in forest stature resulting in reductions in biomass.
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Affiliation(s)
- Oliver Binks
- CREAF, Cerdanyola del Vallès, Barcelona, 08193, Spain
- Research School of Biology, The Australian National University, Canberra, 2601, ACT, Australia
| | - Lucas A Cernusak
- Centre for Tropical Environmental and Sustainability Science, College of Science and Engineering, James Cook University, Cairns, 4878, Qld, Australia
| | - Michael Liddell
- Centre for Tropical Environmental and Sustainability Science, College of Science and Engineering, James Cook University, Cairns, 4878, Qld, Australia
| | - Matt Bradford
- CSIRO Land and Water, Atherton, 4883, Qld, Australia
| | - Ingrid Coughlin
- Research School of Biology, The Australian National University, Canberra, 2601, ACT, Australia
| | - Callum Bryant
- Research School of Biology, The Australian National University, Canberra, 2601, ACT, Australia
| | - Ana C Palma
- Centre for Tropical Environmental and Sustainability Science, College of Science and Engineering, James Cook University, Cairns, 4878, Qld, Australia
| | - Luke Hoffmann
- Centre for Tropical Environmental and Sustainability Science, College of Science and Engineering, James Cook University, Cairns, 4878, Qld, Australia
| | - Iftakharul Alam
- Centre for Tropical Environmental and Sustainability Science, College of Science and Engineering, James Cook University, Cairns, 4878, Qld, Australia
| | - Hannah J Carle
- Research School of Biology, The Australian National University, Canberra, 2601, ACT, Australia
| | - Lucy Rowland
- Geography, Faculty of Environment Science and Economy, University of Exeter, Laver Building, Exeter, EX4 4QE, UK
| | - Rafael S Oliveira
- Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, 13083-970, SP, Brazil
| | - Susan G W Laurance
- Centre for Tropical Environmental and Sustainability Science, College of Science and Engineering, James Cook University, Cairns, 4878, Qld, Australia
| | | | - Patrick Meir
- Research School of Biology, The Australian National University, Canberra, 2601, ACT, Australia
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3FF, UK
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Phillips OL. Sensing Forests Directly: The Power of Permanent Plots. PLANTS (BASEL, SWITZERLAND) 2023; 12:3710. [PMID: 37960066 PMCID: PMC10648163 DOI: 10.3390/plants12213710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/10/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023]
Abstract
The need to measure, monitor, and understand our living planet is greater than ever. Yet, while many technologies are applied to tackle this need, one developed in the 19th century is transforming tropical ecology. Permanent plots, in which forests are directly sensed tree-by-tree and species-by-species, already provide a global public good. They could make greater contributions still by unlocking our potential to understand future ecological change, as the more that computational and remote technologies are deployed the greater the need to ground them with direct observations and the physical, nature-based skills of those who make them. To achieve this requires building profound connections with forests and disadvantaged communities and sustaining these over time. Many of the greatest needs and opportunities in tropical forest science are therefore not to be found in space or in silico, but in vivo, with the people, places and plots who experience nature directly. These are fundamental to understanding the health, predicting the future, and exploring the potential of Earth's richest ecosystems. Now is the time to invest in the tropical field research communities who make so much possible.
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Müller J, Mitesser O, Schaefer HM, Seibold S, Busse A, Kriegel P, Rabl D, Gelis R, Arteaga A, Freile J, Leite GA, de Melo TN, LeBien J, Campos-Cerqueira M, Blüthgen N, Tremlett CJ, Böttger D, Feldhaar H, Grella N, Falconí-López A, Donoso DA, Moriniere J, Buřivalová Z. Soundscapes and deep learning enable tracking biodiversity recovery in tropical forests. Nat Commun 2023; 14:6191. [PMID: 37848442 PMCID: PMC10582010 DOI: 10.1038/s41467-023-41693-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/07/2023] [Indexed: 10/19/2023] Open
Abstract
Tropical forest recovery is fundamental to addressing the intertwined climate and biodiversity loss crises. While regenerating trees sequester carbon relatively quickly, the pace of biodiversity recovery remains contentious. Here, we use bioacoustics and metabarcoding to measure forest recovery post-agriculture in a global biodiversity hotspot in Ecuador. We show that the community composition, and not species richness, of vocalizing vertebrates identified by experts reflects the restoration gradient. Two automated measures - an acoustic index model and a bird community composition derived from an independently developed Convolutional Neural Network - correlated well with restoration (adj-R² = 0.62 and 0.69, respectively). Importantly, both measures reflected composition of non-vocalizing nocturnal insects identified via metabarcoding. We show that such automated monitoring tools, based on new technologies, can effectively monitor the success of forest recovery, using robust and reproducible data.
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Affiliation(s)
- Jörg Müller
- Field Station Fabrikschleichach, Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Glashüttenstr. 5, 96181, Rauhenebrach, Germany.
- Bavarian Forest National Park, Freyungerstr. 2, 94481, Grafenau, Germany.
| | - Oliver Mitesser
- Field Station Fabrikschleichach, Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Glashüttenstr. 5, 96181, Rauhenebrach, Germany
| | - H Martin Schaefer
- Fundación Jocotoco, Valladolid N24-414 y Luis Cordero, Quito, Ecuador
| | - Sebastian Seibold
- Technical University of Munich, School of Life Sciences, Ecosystem Dynamics and Forest Management Research Group, Hans-Carl-von-Carlowitz-Platz 2, 85354, Freising, Germany
- Berchtesgaden National Park, Doktorberg 6, Berchtesgaden, 83471, Germany
| | - Annika Busse
- Saxon-Switzerland National Park, An der Elbe 4, 01814, Bad Schandau, Germany
| | - Peter Kriegel
- Field Station Fabrikschleichach, Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Glashüttenstr. 5, 96181, Rauhenebrach, Germany
| | - Dominik Rabl
- Field Station Fabrikschleichach, Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Glashüttenstr. 5, 96181, Rauhenebrach, Germany
| | - Rudy Gelis
- Yanayacu Research Center, Cosanga, Ecuador
| | | | - Juan Freile
- Pasaje El Moro E4-216 y Norberto Salazar, EC 170902, Tumbaco, DMQ, Ecuador
| | - Gabriel Augusto Leite
- Rainforest Connection, Science Department, 440 Cobia Drive, Suite 1902, Katy, TX, 77494, USA
| | | | - Jack LeBien
- Rainforest Connection, Science Department, 440 Cobia Drive, Suite 1902, Katy, TX, 77494, USA
| | | | - Nico Blüthgen
- Ecological Networks Lab, Department of Biology, Technische Universität Darmstadt, Schnittspahnstr. 3, 64287, Darmstadt, Germany
| | - Constance J Tremlett
- Ecological Networks Lab, Department of Biology, Technische Universität Darmstadt, Schnittspahnstr. 3, 64287, Darmstadt, Germany
| | - Dennis Böttger
- Phyletisches Museum, Institute for Zoology and Evolutionary Research, Friedrich-Schiller-University Jena, Jena, Germany
| | - Heike Feldhaar
- Animal Population Ecology, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440, Bayreuth, Germany
| | - Nina Grella
- Animal Population Ecology, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440, Bayreuth, Germany
| | - Ana Falconí-López
- Field Station Fabrikschleichach, Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Glashüttenstr. 5, 96181, Rauhenebrach, Germany
- Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud-BIOMAS-Universidad de las Américas, Quito, Ecuador
| | - David A Donoso
- Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud-BIOMAS-Universidad de las Américas, Quito, Ecuador
- Departamento de Biología, Facultad de Ciencias, Escuela Politécnica Nacional, Av. Ladrón de Guevara E11-253, CP 17-01-2759, Quito, Ecuador
| | - Jerome Moriniere
- AIM - Advanced Identification Methods GmbH, Niemeyerstr. 1, 04179, Leipzig, Germany
| | - Zuzana Buřivalová
- University of Wisconsin-Madison, Department of Forest and Wildlife Ecology and The Nelson Institute for Environmental Studies, 1630 Linden Drive, Madison, WI, 53706, USA
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Oyedoh OP, Yang W, Dhanasekaran D, Santoyo G, Glick BR, Babalola OO. Rare rhizo-Actinomycetes: A new source of agroactive metabolites. Biotechnol Adv 2023; 67:108205. [PMID: 37356598 DOI: 10.1016/j.biotechadv.2023.108205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 06/27/2023]
Abstract
Numerous biotic and abiotic stress in some geographical regions predisposed their agricultural matrix to challenges threatening plant productivity, health, and quality. In curbing these threats, different customary agrarian principles have been created through research and development, ranging from chemical inputs and genetic modification of crops to the recently trending smart agricultural technology. But the peculiarities associated with these methods have made agriculturists rely on plant rhizospheric microbiome services, particularly bacteria. Several bacterial resources like Proteobacteria, Firmicutes, Acidobacteria, and Actinomycetes (Streptomycetes) are prominent as bioinoculants or the application of their by-products in alleviating biotic/abiotic stress have been extensively studied, with a dearth in the application of rare Actinomycetes metabolites. Rare Actinomycetes are known for their colossal genome, containing well-preserved genes coding for prolific secondary metabolites with many agroactive functionalities that can revolutionize the agricultural industry. Therefore, the imperativeness of this review to express the occurrence and distributions of rare Actinomycetes diversity, plant and soil-associated habitats, successional track in the rhizosphere under diverse stress, and their agroactive metabolite characteristics and functionalities that can remediate the challenges associated with agricultural productivity.
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Affiliation(s)
- Oghoye Priscilla Oyedoh
- Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa
| | - Wei Yang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Dharumadurai Dhanasekaran
- Department of Microbiology, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Gustavo Santoyo
- Instituto de Investigaciones Químico-Biolόgicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58030, Michoacán, Mexico
| | - Bernard R Glick
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Olubukola Oluranti Babalola
- Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa.
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38
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Gatti LV, Cunha CL, Marani L, Cassol HLG, Messias CG, Arai E, Denning AS, Soler LS, Almeida C, Setzer A, Domingues LG, Basso LS, Miller JB, Gloor M, Correia CSC, Tejada G, Neves RAL, Rajao R, Nunes F, Filho BSS, Schmitt J, Nobre C, Corrêa SM, Sanches AH, Aragão LEOC, Anderson L, Von Randow C, Crispim SP, Silva FM, Machado GBM. Increased Amazon carbon emissions mainly from decline in law enforcement. Nature 2023; 621:318-323. [PMID: 37612502 DOI: 10.1038/s41586-023-06390-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 06/30/2023] [Indexed: 08/25/2023]
Abstract
The Amazon forest carbon sink is declining, mainly as a result of land-use and climate change1-4. Here we investigate how changes in law enforcement of environmental protection policies may have affected the Amazonian carbon balance between 2010 and 2018 compared with 2019 and 2020, based on atmospheric CO2 vertical profiles5,6, deforestation7 and fire data8, as well as infraction notices related to illegal deforestation9. We estimate that Amazonia carbon emissions increased from a mean of 0.24 ± 0.08 PgC year-1 in 2010-2018 to 0.44 ± 0.10 PgC year-1 in 2019 and 0.52 ± 0.10 PgC year-1 in 2020 (± uncertainty). The observed increases in deforestation were 82% and 77% (94% accuracy) and burned area were 14% and 42% in 2019 and 2020 compared with the 2010-2018 mean, respectively. We find that the numbers of notifications of infractions against flora decreased by 30% and 54% and fines paid by 74% and 89% in 2019 and 2020, respectively. Carbon losses during 2019-2020 were comparable with those of the record warm El Niño (2015-2016) without an extreme drought event. Statistical tests show that the observed differences between the 2010-2018 mean and 2019-2020 are unlikely to have arisen by chance. The changes in the carbon budget of Amazonia during 2019-2020 were mainly because of western Amazonia becoming a carbon source. Our results indicate that a decline in law enforcement led to increases in deforestation, biomass burning and forest degradation, which increased carbon emissions and enhanced drying and warming of the Amazon forests.
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Affiliation(s)
- Luciana V Gatti
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil.
- Nuclear and Energy Research Institute (IPEN), São Paulo, Brazil.
| | - Camilla L Cunha
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Luciano Marani
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Henrique L G Cassol
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Cassiano Gustavo Messias
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Egidio Arai
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | | | - Luciana S Soler
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Claudio Almeida
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Alberto Setzer
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Lucas Gatti Domingues
- Nuclear and Energy Research Institute (IPEN), São Paulo, Brazil
- National Isotope Centre, GNS Science, Lower Hutt, New Zealand
| | - Luana S Basso
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - John B Miller
- Global Monitoring Laboratory, National Oceanic and Atmospheric Administration (NOAA), Boulder, CO, USA
| | - Manuel Gloor
- School of Geography, University of Leeds, Leeds, UK
| | - Caio S C Correia
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
- Nuclear and Energy Research Institute (IPEN), São Paulo, Brazil
| | - Graciela Tejada
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Raiane A L Neves
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Raoni Rajao
- Remote Sensing Center, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Felipe Nunes
- Remote Sensing Center, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Britaldo S S Filho
- Remote Sensing Center, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Jair Schmitt
- Remote Sensing Center, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carlos Nobre
- Instituto de Estudos Avançados (IEA), University of São Paulo (USP), São Paulo, Brazil
| | - Sergio M Corrêa
- Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil
| | - Alber H Sanches
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Luiz E O C Aragão
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Liana Anderson
- Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN), São José dos Campos, Brazil
| | - Celso Von Randow
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Stephane P Crispim
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Francine M Silva
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
| | - Guilherme B M Machado
- General Coordination of Earth Science (CGCT), National Institute for Space Research (INPE), São José dos Campos, Brazil
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39
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Doughty CE, Keany JM, Wiebe BC, Rey-Sanchez C, Carter KR, Middleby KB, Cheesman AW, Goulden ML, da Rocha HR, Miller SD, Malhi Y, Fauset S, Gloor E, Slot M, Oliveras Menor I, Crous KY, Goldsmith GR, Fisher JB. Tropical forests are approaching critical temperature thresholds. Nature 2023; 621:105-111. [PMID: 37612501 DOI: 10.1038/s41586-023-06391-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 06/30/2023] [Indexed: 08/25/2023]
Abstract
The critical temperature beyond which photosynthetic machinery in tropical trees begins to fail averages approximately 46.7 °C (Tcrit)1. However, it remains unclear whether leaf temperatures experienced by tropical vegetation approach this threshold or soon will under climate change. Here we found that pantropical canopy temperatures independently triangulated from individual leaf thermocouples, pyrgeometers and remote sensing (ECOSTRESS) have midday peak temperatures of approximately 34 °C during dry periods, with a long high-temperature tail that can exceed 40 °C. Leaf thermocouple data from multiple sites across the tropics suggest that even within pixels of moderate temperatures, upper canopy leaves exceed Tcrit 0.01% of the time. Furthermore, upper canopy leaf warming experiments (+2, 3 and 4 °C in Brazil, Puerto Rico and Australia, respectively) increased leaf temperatures non-linearly, with peak leaf temperatures exceeding Tcrit 1.3% of the time (11% for more than 43.5 °C, and 0.3% for more than 49.9 °C). Using an empirical model incorporating these dynamics (validated with warming experiment data), we found that tropical forests can withstand up to a 3.9 ± 0.5 °C increase in air temperatures before a potential tipping point in metabolic function, but remaining uncertainty in the plasticity and range of Tcrit in tropical trees and the effect of leaf death on tree death could drastically change this prediction. The 4.0 °C estimate is within the 'worst-case scenario' (representative concentration pathway (RCP) 8.5) of climate change predictions2 for tropical forests and therefore it is still within our power to decide (for example, by not taking the RCP 6.0 or 8.5 route) the fate of these critical realms of carbon, water and biodiversity3,4.
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Affiliation(s)
- Christopher E Doughty
- School of Informatics, Computing, and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA.
| | - Jenna M Keany
- School of Informatics, Computing, and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
| | - Benjamin C Wiebe
- School of Informatics, Computing, and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA
| | - Camilo Rey-Sanchez
- Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC, USA
| | - Kelsey R Carter
- College of Forest Resources and Environmental Sciences, Michigan Technological University, Houghton, MI, USA
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Kali B Middleby
- Centre for Tropical Environmental and Sustainability Science, James Cook University, Cairns, Queensland, Australia
| | - Alexander W Cheesman
- Centre for Tropical Environmental and Sustainability Science, James Cook University, Cairns, Queensland, Australia
| | - Michael L Goulden
- Department of Earth System Science, University of California, Irvine, CA, USA
| | - Humberto R da Rocha
- Departamento de Ciencias Atmosfericas, Universidade de São Paulo, São Paulo, Brazil
| | - Scott D Miller
- Atmospheric Sciences Research Center, State University of New York at Albany, Albany, NY, USA
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Sophie Fauset
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, UK
| | | | - Martijn Slot
- Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
| | - Imma Oliveras Menor
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, UK
- AMAP (Botanique et Modélisation de l'Architecture des Plantes et des Végétations), CIRAD, CNRS, INRA, IRD, Université de Montpellier, Montpellier, France
| | - Kristine Y Crous
- Western Sydney University, Hawkesbury Institute for the Environment, Penrith, New South Wales, Australia
| | - Gregory R Goldsmith
- Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Joshua B Fisher
- Schmid College of Science and Technology, Chapman University, Orange, CA, USA
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40
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Nölte A, Yousefpour R, Cifuentes-Jara M, Hanewinkel M. Sharp decline in future productivity of tropical reforestation above 29°C mean annual temperature. SCIENCE ADVANCES 2023; 9:eadg9175. [PMID: 37611114 PMCID: PMC10446480 DOI: 10.1126/sciadv.adg9175] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 07/21/2023] [Indexed: 08/25/2023]
Abstract
Tropical reforestation is among the most powerful tools for carbon sequestration. Yet, climate change impacts on productivity are often not accounted for when estimating its mitigation potential. Using the process-based forest growth model 3-PGmix, we analyzed future productivity of tropical reforestation in Central America. Around 29°C mean annual temperature, productivity sharply and consistently declined (-11% per 1°C of warming) across all tropical lowland climate zones and five tree species spanning a wide range of ecological characteristics. Under a high-emission scenario (SSP3-7.0), productivity of dry tropical reforestation nearly halved and tropical moist and rain forest sites showed moderate losses around 10% by the end of the century. Under SSP2-4.5, tropical moist and rain forest sites were resilient and tropical dry forest sites showed moderate losses (-17%). Increased vapor pressure deficit, caused by increasing temperatures, was the main driver of growth decline. Thus, to continue following high-emission pathways could reduce the effectiveness of reforestation as climate action tool.
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Affiliation(s)
- Anja Nölte
- University of Freiburg, Tennenbacherstr. 4, Freiburg 79106, Germany
| | - Rasoul Yousefpour
- University of Freiburg, Tennenbacherstr. 4, Freiburg 79106, Germany
- Institute of Forestry and Forest Conservation, John H. Daniels Faculty of Architecture, Landscape, and Design, University of Toronto, 33 Willcocks Street, Toronto, ON M5S3B3, Canada
| | - Miguel Cifuentes-Jara
- Conservation International, 2011 Crystal Dr., Ste 600, Arlington, VA 22202, USA
- CATIE—Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba 30501, Costa Rica
| | - Marc Hanewinkel
- University of Freiburg, Tennenbacherstr. 4, Freiburg 79106, Germany
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41
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Crous KY, Cheesman AW, Middleby K, Rogers EIE, Wujeska-Klause A, Bouet AYM, Ellsworth DS, Liddell MJ, Cernusak LA, Barton CVM. Similar patterns of leaf temperatures and thermal acclimation to warming in temperate and tropical tree canopies. TREE PHYSIOLOGY 2023; 43:1383-1399. [PMID: 37099805 PMCID: PMC10423462 DOI: 10.1093/treephys/tpad054] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/22/2023] [Accepted: 04/17/2023] [Indexed: 06/19/2023]
Abstract
As the global climate warms, a key question is how increased leaf temperatures will affect tree physiology and the coupling between leaf and air temperatures in forests. To explore the impact of increasing temperatures on plant performance in open air, we warmed leaves in the canopy of two mature evergreen forests, a temperate Eucalyptus woodland and a tropical rainforest. The leaf heaters consistently maintained leaves at a target of 4 °C above ambient leaf temperatures. Ambient leaf temperatures (Tleaf) were mostly coupled to air temperatures (Tair), but at times, leaves could be 8-10 °C warmer than ambient air temperatures, especially in full sun. At both sites, Tleaf was warmer at higher air temperatures (Tair > 25 °C), but was cooler at lower Tair, contrary to the 'leaf homeothermy hypothesis'. Warmed leaves showed significantly lower stomatal conductance (-0.05 mol m-2 s-1 or -43% across species) and net photosynthesis (-3.91 μmol m-2 s-1 or -39%), with similar rates in leaf respiration rates at a common temperature (no acclimation). Increased canopy leaf temperatures due to future warming could reduce carbon assimilation via reduced photosynthesis in these forests, potentially weakening the land carbon sink in tropical and temperate forests.
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Affiliation(s)
- K Y Crous
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales 2751, Australia
| | - A W Cheesman
- Centre for Tropical Environmental and Sustainability Science (TESS) and College of Science and Engineering, James Cook University, Cairns, Queensland 4878, Australia
| | - K Middleby
- Centre for Tropical Environmental and Sustainability Science (TESS) and College of Science and Engineering, James Cook University, Cairns, Queensland 4878, Australia
| | - E I E Rogers
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales 2751, Australia
| | - A Wujeska-Klause
- Urban Studies, School of Social Science, Western Sydney University, Penrith, New South Wales 2751, Australia
| | - A Y M Bouet
- Centre for Tropical Environmental and Sustainability Science (TESS) and College of Science and Engineering, James Cook University, Cairns, Queensland 4878, Australia
| | - D S Ellsworth
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales 2751, Australia
| | - M J Liddell
- Centre for Tropical Environmental and Sustainability Science (TESS) and College of Science and Engineering, James Cook University, Cairns, Queensland 4878, Australia
| | - L A Cernusak
- Centre for Tropical Environmental and Sustainability Science (TESS) and College of Science and Engineering, James Cook University, Cairns, Queensland 4878, Australia
| | - C V M Barton
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales 2751, Australia
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42
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Grossman D. 'We are killing this ecosystem': the scientists tracking the Amazon's fading health. Nature 2023; 620:712-716. [PMID: 37612400 DOI: 10.1038/d41586-023-02599-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
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43
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Bennett EL, Robinson JG. To avoid carbon degradation in tropical forests, conserve wildlife. PLoS Biol 2023; 21:e3002262. [PMID: 37643160 PMCID: PMC10464947 DOI: 10.1371/journal.pbio.3002262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023] Open
Abstract
Loss of large-bodied wildlife, typically from hunting, degrades the ecological processes in tropical forests that sequester and store carbon. Carbon-based markets that incentivize wildlife conservation can generate revenues to support necessary forest and hunting management.
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Affiliation(s)
| | - John G. Robinson
- Wildlife Conservation Society, Bronx, New York, United States of America
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44
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Rius BF, Filho JPD, Fleischer K, Hofhansl F, Blanco CC, Rammig A, Domingues TF, Lapola DM. Higher functional diversity improves modeling of Amazon forest carbon storage. Ecol Modell 2023. [DOI: 10.1016/j.ecolmodel.2023.110323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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45
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Witteveen NH, White C, Sanchez Martinez BA, Booij R, Philip A, Gosling WD, Bush MB, McMichael CNH. Phytolith assemblages reflect variability in human land use and the modern environment. VEGETATION HISTORY AND ARCHAEOBOTANY 2023; 33:221-236. [PMID: 38404455 PMCID: PMC10884070 DOI: 10.1007/s00334-023-00932-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 04/22/2023] [Indexed: 02/27/2024]
Abstract
Phytoliths preserved in soils and sediments can be used to provide unique insights into past vegetation dynamics in response to human and climate change. Phytoliths can reconstruct local vegetation in terrestrial soils where pollen grains typically decay, providing a range of markers (or lack thereof) that document past human activities. The ca. 6 million km2 of Amazonian forests have relatively few baseline datasets documenting changes in phytolith representation across gradients of human disturbances. Here we show that phytolith assemblages vary on local scales across a gradient of (modern) human disturbance in tropical rainforests of Suriname. Detrended correspondence analysis showed that the phytolith assemblages found in managed landscapes (shifting cultivation and a garden), unmanaged forests, and abandoned reforesting sites were clearly distinguishable from intact forests and from each other. Our results highlight the sensitivity and potential of phytoliths to be used in reconstructing successional trajectories after site usage and abandonment. Percentages of specific phytolith morphotypes were also positively correlated with local palm abundances derived from UAV data, and with biomass estimated from MODIS satellite imagery. This baseline dataset provides an index of likely changes that can be observed at other sites that indicate past human activities and long-term forest recovery in Amazonia. Supplementary Information The online version contains supplementary material available at 10.1007/s00334-023-00932-2.
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Affiliation(s)
- Nina H. Witteveen
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 GE Amsterdam, Netherlands
| | - Cheryl White
- Department of History, Faculty of Humanities, Anton de Kom University, Universiteitscomplex, Gebouw 7, Leysweg 86, Paramaribo, Suriname
| | - Barbara A. Sanchez Martinez
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 GE Amsterdam, Netherlands
| | - Roemer Booij
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 GE Amsterdam, Netherlands
| | - Annemarie Philip
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 GE Amsterdam, Netherlands
| | - William D. Gosling
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 GE Amsterdam, Netherlands
| | - Mark B. Bush
- Institute for Global Ecology, Florida Institute of Technology, Melbourne, FL 32901 USA
| | - Crystal N. H. McMichael
- Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098 GE Amsterdam, Netherlands
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46
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Rowland L, Ramírez-Valiente JA, Hartley IP, Mencuccini M. How woody plants adjust above- and below-ground traits in response to sustained drought. THE NEW PHYTOLOGIST 2023. [PMID: 37306017 DOI: 10.1111/nph.19000] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/01/2023] [Indexed: 06/13/2023]
Abstract
Future increases in drought severity and frequency are predicted to have substantial impacts on plant function and survival. However, there is considerable uncertainty concerning what drought adjustment is and whether plants can adjust to sustained drought. This review focuses on woody plants and synthesises the evidence for drought adjustment in a selection of key above-ground and below-ground plant traits. We assess whether evaluating the drought adjustment of single traits, or selections of traits that operate on the same plant functional axis (e.g. photosynthetic traits) is sufficient, or whether a multi-trait approach, integrating across multiple axes, is required. We conclude that studies on drought adjustments in woody plants might overestimate the capacity for adjustment to drier environments if spatial studies along gradients are used, without complementary experimental approaches. We provide evidence that drought adjustment is common in above-ground and below-ground traits; however, whether this is adaptive and sufficient to respond to future droughts remains uncertain for most species. To address this uncertainty, we must move towards studying trait integration within and across multiple axes of plant function (e.g. above-ground and below-ground) to gain a holistic view of drought adjustments at the whole-plant scale and how these influence plant survival.
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Affiliation(s)
- Lucy Rowland
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RJ, UK
| | | | - Iain P Hartley
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RJ, UK
| | - Maurizio Mencuccini
- CREAF, Campus de Bellaterra (UAB), Cerdanyola del Vallés, Barcelona, 08193, Spain
- ICREA, Barcelona, 08010, Spain
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47
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Barros FDV, Lewis K, Robertson AD, Pennington RT, Hill TC, Matthews C, Lira-Martins D, Mazzochini GG, Oliveira RS, Rowland L. Cost-effective restoration for carbon sequestration across Brazil's biomes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162600. [PMID: 36871717 DOI: 10.1016/j.scitotenv.2023.162600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Tropical ecosystems are central to the global focus on halting and reversing habitat destruction as a means of mitigating carbon emissions. Brazil has been highlighted as a vital part of global climate agreements because, whilst ongoing land-use change causes it to be the world's fifth biggest greenhouse gas emitting country, it also has one of the greatest potentials to implement ecosystem restoration. Global carbon markets provide the opportunity of a financially viable way to implement restoration projects at scale. However, except for rainforests, the restoration potential of many major tropical biomes is not widely recognised, with the result that carbon sequestration potential may be squandered. We synthesize data on land availability, land degradation status, restoration costs, area of native vegetation remaining, carbon storage potential and carbon market prices for 5475 municipalities across Brazil's major biomes, including the savannas and tropical dry forests. Using a modelling analysis, we determine how fast restoration could be implemented across these biomes within existing carbon markets. We argue that even with a sole focus on carbon, we must restore other tropical biomes, as well as rainforests, to effectively increase benefits. The inclusion of dry forests and savannas doubles the area which could be restored in a financially viable manner, increasing the potential CO2e sequestered >40 % above that offered by rainforests alone. Importantly, we show that in the short-term avoiding emissions through conservation will be necessary for Brazil to achieve it's 2030 climate goal, because it can sequester 1.5 to 4.3 Pg of CO2e by 2030, relative to 0.127 Pg CO2e from restoration. However, in the longer term, restoration across all biomes in Brazil could draw down between 3.9 and 9.8 Pg of CO2e from the atmosphere by 2050 and 2080.
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Affiliation(s)
- F de V Barros
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4RJ, UK.
| | - K Lewis
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4RJ, UK
| | - A D Robertson
- Department of Soil and Crop Sciences Colorado State University, Fort Collins, CO 80523, USA; Natural Resources Ecology Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - R T Pennington
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4RJ, UK; Royal Botanic Garden Edinburgh, Edinburgh EH3 5LR, UK
| | - T C Hill
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4RJ, UK
| | - C Matthews
- Independent Research, 3 Cultins Rd, Edinburgh EH11 4DF, UK
| | - D Lira-Martins
- Instituto de Biologia, University of Campinas (UNICAMP), Campinas, SP 13083-970, Brazil
| | - G G Mazzochini
- Instituto de Biologia, University of Campinas (UNICAMP), Campinas, SP 13083-970, Brazil
| | - R S Oliveira
- Instituto de Biologia, University of Campinas (UNICAMP), Campinas, SP 13083-970, Brazil
| | - L Rowland
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4RJ, UK
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48
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Zuleta D, Arellano G, McMahon SM, Aguilar S, Bunyavejchewin S, Castaño N, Chang-Yang CH, Duque A, Mitre D, Nasardin M, Pérez R, Sun IF, Yao TL, Valencia R, Krishna Moorthy SM, Verbeeck H, Davies SJ. Damage to living trees contributes to almost half of the biomass losses in tropical forests. GLOBAL CHANGE BIOLOGY 2023; 29:3409-3420. [PMID: 36938951 DOI: 10.1111/gcb.16687] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 02/11/2023] [Indexed: 05/16/2023]
Abstract
Accurate estimates of forest biomass stocks and fluxes are needed to quantify global carbon budgets and assess the response of forests to climate change. However, most forest inventories consider tree mortality as the only aboveground biomass (AGB) loss without accounting for losses via damage to living trees: branchfall, trunk breakage, and wood decay. Here, we use ~151,000 annual records of tree survival and structural completeness to compare AGB loss via damage to living trees to total AGB loss (mortality + damage) in seven tropical forests widely distributed across environmental conditions. We find that 42% (3.62 Mg ha-1 year-1 ; 95% confidence interval [CI] 2.36-5.25) of total AGB loss (8.72 Mg ha-1 year-1 ; CI 5.57-12.86) is due to damage to living trees. Total AGB loss was highly variable among forests, but these differences were mainly caused by site variability in damage-related AGB losses rather than by mortality-related AGB losses. We show that conventional forest inventories overestimate stand-level AGB stocks by 4% (1%-17% range across forests) because assume structurally complete trees, underestimate total AGB loss by 29% (6%-57% range across forests) due to overlooked damage-related AGB losses, and overestimate AGB loss via mortality by 22% (7%-80% range across forests) because of the assumption that trees are undamaged before dying. Our results indicate that forest carbon fluxes are higher than previously thought. Damage on living trees is an underappreciated component of the forest carbon cycle that is likely to become even more important as the frequency and severity of forest disturbances increase.
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Affiliation(s)
- Daniel Zuleta
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Washington, District of Columbia, USA
| | - Gabriel Arellano
- Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, USA
- Oikobit LLC, Albuquerque, New Mexico, USA
| | - Sean M McMahon
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Washington, District of Columbia, USA
- Smithsonian Environmental Research Center, Edgewater, Maryland, 21037, USA
| | - Salomón Aguilar
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, República de Panamá
| | - Sarayudh Bunyavejchewin
- Department of National Parks, Forest Research Office, Wildlife and Plant Conservation, Bangkok, 10900, Thailand
| | - Nicolas Castaño
- Herbario Amazónico Colombiano, Instituto Amazónico de Investigaciones Científicas Sinchi, Bogotá, Colombia
| | - Chia-Hao Chang-Yang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Alvaro Duque
- Departamento de Ciencias Forestales, Universidad Nacional de Colombia Sede Medellín, Medellín, Colombia
| | - David Mitre
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, República de Panamá
| | - Musalmah Nasardin
- Forestry and Environment Division, Forest Research Institute Malaysia, 52109, Kepong, Selangor, Malaysia
| | - Rolando Pérez
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, República de Panamá
| | - I-Fang Sun
- Center for Interdisciplinary Research on Ecology and Sustainability, National Dong Hwa University, Hualien, 94701, Taiwan
| | - Tze Leong Yao
- Forestry and Environment Division, Forest Research Institute Malaysia, 52109, Kepong, Selangor, Malaysia
| | - Renato Valencia
- Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Sruthi M Krishna Moorthy
- Department of Geographical Sciences, University of Maryland, College Park, Maryland, USA
- Department of Environment, Ghent University, Ghent, Belgium
| | - Hans Verbeeck
- Department of Environment, Ghent University, Ghent, Belgium
| | - Stuart J Davies
- Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Washington, District of Columbia, USA
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49
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Cox AJF, Hartley IP, Meir P, Sitch S, Dusenge ME, Restrepo Z, González-Caro S, Villegas JC, Uddling J, Mercado LM. Acclimation of photosynthetic capacity and foliar respiration in Andean tree species to temperature change. THE NEW PHYTOLOGIST 2023; 238:2329-2344. [PMID: 36987979 DOI: 10.1111/nph.18900] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/13/2023] [Indexed: 05/19/2023]
Abstract
Climate warming is causing compositional changes in Andean tropical montane forests (TMFs). These shifts are hypothesised to result from differential responses to warming of cold- and warm-affiliated species, with the former experiencing mortality and the latter migrating upslope. The thermal acclimation potential of Andean TMFs remains unknown. Along a 2000 m Andean altitudinal gradient, we planted individuals of cold- and warm-affiliated species (under common soil and irrigation), exposing them to the hot and cold extremes of their thermal niches, respectively. We measured the response of net photosynthesis (Anet ), photosynthetic capacity and leaf dark respiration (Rdark ) to warming/cooling, 5 months after planting. In all species, Anet and photosynthetic capacity at 25°C were highest when growing at growth temperatures (Tg ) closest to their thermal means, declining with warming and cooling in cold-affiliated and warm-affiliated species, respectively. When expressed at Tg , photosynthetic capacity and Rdark remained unchanged in cold-affiliated species, but the latter decreased in warm-affiliated counterparts. Rdark at 25°C increased with temperature in all species, but remained unchanged when expressed at Tg . Both species groups acclimated to temperature, but only warm-affiliated species decreased Rdark to photosynthetic capacity ratio at Tg as temperature increased. This could confer them a competitive advantage under future warming.
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Affiliation(s)
- Andrew J F Cox
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RKJ, UK
| | - Iain P Hartley
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RKJ, UK
| | - Patrick Meir
- School of Geosciences, University of Edinburgh, Edinburgh, EH9 3JN, UK
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Stephen Sitch
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RKJ, UK
| | - Mirindi Eric Dusenge
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RKJ, UK
- Department of Biological and Environmental Sciences, University of Gothenburg, PO Box 461, Gothenburg, SE-405 30, Sweden
- Department of Biology, The University of Western Ontario, London, ON, N6A 3K7, Canada
| | - Zorayda Restrepo
- Grupo de Investigación en Ecología Aplicada, Universidad de Antioquia, Medellín, Colombia
- UK Centre for Ecology and Hydrology, Crowmarsh-Gifford, Wallingford, OX10 8BB, UK
| | - Sebastian González-Caro
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RKJ, UK
- UK Centre for Ecology and Hydrology, Crowmarsh-Gifford, Wallingford, OX10 8BB, UK
| | - Juan Camilo Villegas
- Grupo de Investigación en Ecología Aplicada, Universidad de Antioquia, Medellín, Colombia
| | - Johan Uddling
- Department of Biological and Environmental Sciences, University of Gothenburg, PO Box 461, Gothenburg, SE-405 30, Sweden
| | - Lina M Mercado
- Geography, Faculty of Environment, Science and Economy, University of Exeter, Exeter, EX4 4RKJ, UK
- UK Centre for Ecology and Hydrology, Crowmarsh-Gifford, Wallingford, OX10 8BB, UK
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50
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Peters RL, Steppe K, Pappas C, Zweifel R, Babst F, Dietrich L, von Arx G, Poyatos R, Fonti M, Fonti P, Grossiord C, Gharun M, Buchmann N, Steger DN, Kahmen A. Daytime stomatal regulation in mature temperate trees prioritizes stem rehydration at night. THE NEW PHYTOLOGIST 2023. [PMID: 37235688 DOI: 10.1111/nph.18964] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 04/16/2023] [Indexed: 05/28/2023]
Abstract
Trees remain sufficiently hydrated during drought by closing stomata and reducing canopy conductance (Gc ) in response to variations in atmospheric water demand and soil water availability. Thresholds that control the reduction of Gc are proposed to optimize hydraulic safety against carbon assimilation efficiency. However, the link between Gc and the ability of stem tissues to rehydrate at night remains unclear. We investigated whether species-specific Gc responses aim to prevent branch embolisms, or enable night-time stem rehydration, which is critical for turgor-dependent growth. For this, we used a unique combination of concurrent dendrometer, sap flow and leaf water potential measurements and collected branch-vulnerability curves of six common European tree species. Species-specific Gc reduction was weakly related to the water potentials at which 50% of branch xylem conductivity is lost (P50 ). Instead, we found a stronger relationship with stem rehydration. Species with a stronger Gc control were less effective at refilling stem-water storage as the soil dries, which appeared related to their xylem architecture. Our findings highlight the importance of stem rehydration for water-use regulation in mature trees, which likely relates to the maintenance of adequate stem turgor. We thus conclude that stem rehydration must complement the widely accepted safety-efficiency stomatal control paradigm.
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Affiliation(s)
- Richard L Peters
- Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, B-9000, Ghent, Belgium
- Forest Dynamics, Swiss Federal Research Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, CH-8903, Birmensdorf, Switzerland
- Forest is Life, TERRA Teaching and Research Centre, Gembloux Agro Bio-Tech, University of Liège, Passage des Déportés 2, 5030, Gembloux, Belgium
| | - Kathy Steppe
- Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, B-9000, Ghent, Belgium
| | - Christoforos Pappas
- Department of Civil Engineering, University of Patras, Rio, Patras, 26504, Greece
| | - Roman Zweifel
- Forest Dynamics, Swiss Federal Research Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, CH-8903, Birmensdorf, Switzerland
| | - Flurin Babst
- School of Natural Resources and the Environment, University of Arizona, East Lowell Street 1064, Tucson, AZ, 85721, USA
- Laboratory of Tree-Ring Research, University of Arizona, East Lowell Street 1215, Tucson, AZ, 857121, USA
| | - Lars Dietrich
- Department of Environmental Sciences - Botany, University of Basel, Schönbeinstrasse 6, CH-4056, Basel, Switzerland
| | - Georg von Arx
- Forest Dynamics, Swiss Federal Research Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, CH-8903, Birmensdorf, Switzerland
- Oeschger Centre for Climate Change Research, University of Bern, 3012, Bern, Switzerland
| | - Rafael Poyatos
- CREAF, E08193 Bellaterra (Cerdanyola del Vallès), Catalonia, Spain
- Universitat Autònoma de Barcelona, E08193 Bellaterra (Cerdanyola del Vallès), Catalonia, Spain
| | - Marina Fonti
- Forest Dynamics, Swiss Federal Research Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, CH-8903, Birmensdorf, Switzerland
| | - Patrick Fonti
- Forest Dynamics, Swiss Federal Research Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, CH-8903, Birmensdorf, Switzerland
| | - Charlotte Grossiord
- Plant Ecology Research Laboratory PERL, School for Architecture, Civil and Environmental Engineering, EPFL, CH-1015, Lausanna, Switzerland
- Community Ecology Unit, Swiss Federal Institute for Forest, Snow and Landscape WSL, CH-1015, Lausanne, Switzerland
| | - Mana Gharun
- Department of Environmental Systems Science, ETH Zurich, Universitatstrasse 2, CH-8092, Zurich, Switzerland
- Department of Geosciences, University of Münster, Heisenbergstrasse 2, 48149, Münster, Germany
| | - Nina Buchmann
- Department of Environmental Systems Science, ETH Zurich, Universitatstrasse 2, CH-8092, Zurich, Switzerland
| | - David N Steger
- Department of Environmental Sciences - Botany, University of Basel, Schönbeinstrasse 6, CH-4056, Basel, Switzerland
| | - Ansgar Kahmen
- Department of Environmental Sciences - Botany, University of Basel, Schönbeinstrasse 6, CH-4056, Basel, Switzerland
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