1
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Rineau F, Groh J, Claes J, Grosjean K, Mench M, Moreno-Druet M, Povilaitis V, Pütz T, Rutkowska B, Schröder P, Soudzilovskaia NA, Swinnen X, Szulc W, Thijs S, Vandenborght J, Vangronsveld J, Vereecken H, Verhaege K, Žydelis R, Loit E. Limited effects of crop foliar Si fertilization on a marginal soil under a future climate scenario. Heliyon 2024; 10:e23882. [PMID: 38192753 PMCID: PMC10772710 DOI: 10.1016/j.heliyon.2023.e23882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 01/10/2024] Open
Abstract
Growing crops on marginal lands is a promising solution to alleviate the increasing pressure on agricultural land in Europe. Such crops will however be at the same time exposed to increased drought and pathogen prevalence, on already challenging soil conditions. Some sustainable practices, such as Silicon (Si) foliar fertilization, have been proposed to alleviate these two stress factors, but have not been tested under controlled, future climate conditions. We hypothesized that Si foliar fertilization would be beneficial for crops under future climate, and would have cascading beneficial effects on ecosystem processes, as many of them are directly dependent on plant health. We tested this hypothesis by exposing spring barley growing on marginal soil macrocosms (three with, three without Si treatment) to 2070 climate projections in an ecotron facility. Using the high-capacity monitoring of the ecotron, we estimated C, water, and N budgets of every macrocosm. Additionally, we measured crop yield, the biomass of each plant organ, and characterized bacterial communities using metabarcoding. Despite being exposed to water stress conditions, plants did not produce more biomass with the foliar Si fertilization, whatever the organ considered. Evapotranspiration (ET) was unaffected, as well as water quality and bacterial communities. However, in the 10-day period following two of the three Si applications, we measured a significant increase in C sequestration, when climate conditions where significantly drier, while ET remained the same. We interpreted these results as a less significant effect of Si treatment than expected as compared with literature, which could be explained by the high CO2 levels under future climate, that reduces need for stomata opening, and therefore sensitivity to drought. We conclude that making marginal soils climate proof using foliar Si treatments may not be a sufficient strategy, at least in this type of nutrient-poor, dry, sandy soil.
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Affiliation(s)
- Francois Rineau
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Jannis Groh
- Institute of Crop Science and Resource Conservation – Soil Science and Soil Ecology, University of Bonn, Bonn, Germany
- Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany
- Research Area 1 “Landscape Functioning,” Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany
| | - Julie Claes
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Kristof Grosjean
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Michel Mench
- Univ. Bordeaux, INRAE, Biogeco, Bat B2, Allée G. St-Hilaire, F-33615 Pessac cedex, France
| | - Maria Moreno-Druet
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Virmantas Povilaitis
- Lithuanian Research Centre for Agriculture and Forestry, Akademija, LT-58344, Kedainiai distr. Lithuania
| | - Thomas Pütz
- Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Beata Rutkowska
- Warsaw University of Life Sciences - SGGW, 02-787 Warsaw, Poland
| | - Peter Schröder
- Research Unit Environmental Simulation, Helmholtz Center for Environmental Health, German Research Center for Environmental Health, Neuherberg, Germany
| | | | - Xander Swinnen
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Wieslaw Szulc
- Warsaw University of Life Sciences - SGGW, 02-787 Warsaw, Poland
| | - Sofie Thijs
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Jan Vandenborght
- Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Jaco Vangronsveld
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Harry Vereecken
- Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Kasper Verhaege
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Renaldas Žydelis
- Lithuanian Research Centre for Agriculture and Forestry, Akademija, LT-58344, Kedainiai distr. Lithuania
| | - Evelin Loit
- Estonian University of Life Sciences, Chair of Field Crops and Plant Biology, 51006 Tartu, Estonia
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2
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Graf A, Wohlfahrt G, Aranda-Barranco S, Arriga N, Brümmer C, Ceschia E, Ciais P, Desai AR, Di Lonardo S, Gharun M, Grünwald T, Hörtnagl L, Kasak K, Klosterhalfen A, Knohl A, Kowalska N, Leuchner M, Lindroth A, Mauder M, Migliavacca M, Morel AC, Pfennig A, Poorter H, Terán CP, Reitz O, Rebmann C, Sanchez-Azofeifa A, Schmidt M, Šigut L, Tomelleri E, Yu K, Varlagin A, Vereecken H. Joint optimization of land carbon uptake and albedo can help achieve moderate instantaneous and long-term cooling effects. COMMUNICATIONS EARTH & ENVIRONMENT 2023; 4:298. [PMID: 38665193 PMCID: PMC11041785 DOI: 10.1038/s43247-023-00958-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 08/07/2023] [Indexed: 04/28/2024]
Abstract
Both carbon dioxide uptake and albedo of the land surface affect global climate. However, climate change mitigation by increasing carbon uptake can cause a warming trade-off by decreasing albedo, with most research focusing on afforestation and its interaction with snow. Here, we present carbon uptake and albedo observations from 176 globally distributed flux stations. We demonstrate a gradual decline in maximum achievable annual albedo as carbon uptake increases, even within subgroups of non-forest and snow-free ecosystems. Based on a paired-site permutation approach, we quantify the likely impact of land use on carbon uptake and albedo. Shifting to the maximum attainable carbon uptake at each site would likely cause moderate net global warming for the first approximately 20 years, followed by a strong cooling effect. A balanced policy co-optimizing carbon uptake and albedo is possible that avoids warming on any timescale, but results in a weaker long-term cooling effect.
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Affiliation(s)
- Alexander Graf
- Institute of Bio- and Geosciences: Agrosphere (IBG-3), Research Centre Jülich, Jülich, Germany
| | - Georg Wohlfahrt
- Universität Innsbruck, Institut für Ökologie, Innsbruck, Austria
| | - Sergio Aranda-Barranco
- Andalusian Institute for Earth System Research (IISTA-CEAMA), 18071 Granada, Spain
- Departament of Ecology, University of Granada, 18071 Granada, Spain
| | - Nicola Arriga
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Christian Brümmer
- Thünen Institute of Climate-Smart Agriculture, Braunschweig, Germany
| | - Eric Ceschia
- CESBIO, Université de Toulouse, CNES/CNRS/INRA/IRD/UPS, Toulouse, France
| | - Philippe Ciais
- Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91191 France
| | - Ankur R. Desai
- Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI USA
| | - Sara Di Lonardo
- Research Institute on Terrestrial Ecosystems-National Research Council (IRET-CNR), Sesto Fiorentino, Italy
| | - Mana Gharun
- Institute of Landscape Ecology, University of Münster, Münster, Germany
| | - Thomas Grünwald
- Technische Universität Dresden, Institute of Hydrology and Meteorology, Dresden, Germany
| | - Lukas Hörtnagl
- Department of Environmental Systems Science, ETH Zürich, Universitätstrasse 2, Zürich, 8092 Switzerland
| | - Kuno Kasak
- Department of Geography, University of Tartu, Tartu, Estonia
| | | | | | - Natalia Kowalska
- Global Change Research Institute CAS, Bělidla 986/4a, CZ-60300 Brno, Czech Republic
| | - Michael Leuchner
- Physical Geography and Climatology, Institute of Geography, RWTH Aachen University, Aachen, Germany
| | - Anders Lindroth
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden
| | - Matthias Mauder
- Technische Universität Dresden, Institute of Hydrology and Meteorology, Dresden, Germany
| | | | - Alexandra C. Morel
- Division of Energy, Environment and Society, University of Dundee, Dundee, UK
| | - Andreas Pfennig
- Department of Chemical Engineering, University of Liège, Liège, Belgium
| | - Hendrik Poorter
- Institute of Bio- and Geosciences: Plant Sciences (IBG-2), Research Centre Jülich, Jülich, Germany
- Department of Natural Sciences, Macquarie University, North Ryde, NSW 2109 Australia
| | - Christian Poppe Terán
- Institute of Bio- and Geosciences: Agrosphere (IBG-3), Research Centre Jülich, Jülich, Germany
| | - Oliver Reitz
- Physical Geography and Climatology, Institute of Geography, RWTH Aachen University, Aachen, Germany
| | - Corinna Rebmann
- Department Computational Hydrosystems, Helmholtz Centre for Environmental Research (UFZ), Permoserstr. 15, 04318 Leipzig, Germany
| | - Arturo Sanchez-Azofeifa
- Earth and Atmospheric Sciences Department, Centre for Earth Observation Sciences (CEOS), Edmonton, AB Canada
| | - Marius Schmidt
- Institute of Bio- and Geosciences: Agrosphere (IBG-3), Research Centre Jülich, Jülich, Germany
| | - Ladislav Šigut
- Global Change Research Institute CAS, Bělidla 986/4a, CZ-60300 Brno, Czech Republic
| | - Enrico Tomelleri
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università 5, 39100 Bolzano, Italy
| | - Ke Yu
- Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91191 France
| | - Andrej Varlagin
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071 Leninsky pr.33, Moscow, Russia
| | - Harry Vereecken
- Institute of Bio- and Geosciences: Agrosphere (IBG-3), Research Centre Jülich, Jülich, Germany
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3
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Pohl F, Rakovec O, Rebmann C, Hildebrandt A, Boeing F, Hermanns F, Attinger S, Samaniego L, Kumar R. Long-term daily hydrometeorological drought indices, soil moisture, and evapotranspiration for ICOS sites. Sci Data 2023; 10:281. [PMID: 37179354 PMCID: PMC10183025 DOI: 10.1038/s41597-023-02192-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Eddy covariance sites are ideally suited for the study of extreme events on ecosystems as they allow the exchange of trace gases and energy fluxes between ecosystems and the lower atmosphere to be directly measured on a continuous basis. However, standardized definitions of hydroclimatic extremes are needed to render studies of extreme events comparable across sites. This requires longer datasets than are available from on-site measurements in order to capture the full range of climatic variability. We present a dataset of drought indices based on precipitation (Standardized Precipitation Index, SPI), atmospheric water balance (Standardized Precipitation Evapotranspiration Index, SPEI), and soil moisture (Standardized Soil Moisture Index, SSMI) for 101 ecosystem sites from the Integrated Carbon Observation System (ICOS) with daily temporal resolution from 1950 to 2021. Additionally, we provide simulated soil moisture and evapotranspiration for each site from the Mesoscale Hydrological Model (mHM). These could be utilised for gap-filling or long-term research, among other applications. We validate our data set with measurements from ICOS and discuss potential research avenues.
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Affiliation(s)
- Felix Pohl
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany.
| | - Oldrich Rakovec
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, Praha-Suchdol, 165 00, Czech Republic
| | - Corinna Rebmann
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
| | - Anke Hildebrandt
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
- Friedrich Schiller University Jena, Institute of Geoscience, Burgweg 11, 07749, Jena, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103, Leipzig, Germany
| | - Friedrich Boeing
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
| | - Floris Hermanns
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
| | - Sabine Attinger
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
- University of Potsdam, Institute of Environmental Science and Geography, Am Neuen Palais 10, 14469, Potsdam, Germany
| | - Luis Samaniego
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
- University of Potsdam, Institute of Environmental Science and Geography, Am Neuen Palais 10, 14469, Potsdam, Germany
| | - Rohini Kumar
- Helmholtz-Centre for Environmental Research, Permoserstraße 15, 04318, Leipzig, Germany
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4
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Jiang F, He W, Ju W, Wang H, Wu M, Wang J, Feng S, Zhang L, Chen JM. The status of carbon neutrality of the world's top 5 CO 2 emitters as seen by carbon satellites. FUNDAMENTAL RESEARCH 2022; 2:357-366. [PMID: 38933397 PMCID: PMC11197612 DOI: 10.1016/j.fmre.2022.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/24/2021] [Accepted: 02/06/2022] [Indexed: 11/23/2022] Open
Abstract
China, the Unite States (US), the European Union (EU), India, and Russia are the world's top 5 fossil fuel and cement CO2 (FFC) emitting countries or regions (CRs). It is very important to understand their status of carbon neutrality, and to monitor their future changes of net carbon fluxes (NCFs). In this study, we implemented a well-established global carbon assimilation system (GCAS, Version 2) to infer global surface carbon fluxes from May 2009 to December 2019 using both GOSAT and OCO-2 XCO2 retrievals. The reductions of flux uncertainty and XCO2 bias, and the evaluation of posterior flux show that GCAS has comparable and good performance in the 5 CRs. The results suggest that Russia has achieved carbon neutrality, but the other 4 are still far from being carbon neutral, especially China. The mean annual NCFs in China, the US, the EU, India, and Russia are 2.33 ± 0.29, 0.82 ± 0.20, 0.42 ± 0.16, 0.50 ± 0.12, and -0.33 ± 0.23 PgC yr-1, respectively. From 2010 to 2019, the NCFs showed an increasing trend in the US and India, a slight downward trend after 2013 in China, and were stable in the EU. The changes of land sinks in China and the US might be the main reason for their trends. India's trend was mainly due to the increase of FFC emission. The relative contributions of NCFs to the global land net carbon emission of China and the EU have decreased, while those of the US and India have increased, implying the US and India must take more active measures to control carbon emissions or increase their sinks. This study indicates that satellite XCO2 could be successfully used to monitor the changes of regional NCFs, which is of great significance for major countries to achieve greenhouse gas control goals.
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Affiliation(s)
- Fei Jiang
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
- Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, China
| | - Wei He
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
| | - Weimin Ju
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
| | - Hengmao Wang
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
| | - Mousong Wu
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
| | - Jun Wang
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
| | - Shuzhuang Feng
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
| | - Lingyu Zhang
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
| | - Jing M. Chen
- Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210023, China
- Department of Geography, University of Toronto, Toronto, Ontario M5S3G3, Canada
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5
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de Oliveira ML, Dos Santos CAC, de Oliveira G, Perez-Marin AM, Santos CAG. Effects of human-induced land degradation on water and carbon fluxes in two different Brazilian dryland soil covers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 792:148458. [PMID: 34465045 DOI: 10.1016/j.scitotenv.2021.148458] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/10/2021] [Accepted: 06/10/2021] [Indexed: 06/13/2023]
Abstract
The Brazilian semiarid region presents a physical water scarcity and high seasonal and interannual irregularities of precipitation, known as a region with periodic droughts. This region is mainly covered by the Caatinga biome, recognized as a Seasonally Dry Tropical Forest (SDTF). Soil water availability directly impacts the ecosystem's functioning, characterized by low fertility and sparse vegetation cover during the dry season, making it a fragile ecosystem vulnerable to climatic variations. Additionally, this region has been suffering from several issues due to human activities over the centuries, which has resulted in extensive areas being severely degraded, which aggravates the impacts from climatic variations and the susceptibility to desertification. Thus, studying the soil-plant-atmosphere continuum in this region can help better understand the seasonal and annual behavior of the water and carbon fluxes. This study investigated the dynamics of water and carbon fluxes during four years (2013-2016) by using eddy covariance (EC) measurements within two areas of Caatinga (dense Caatinga (DC) and sparse Caatinga (SC)) that suffered anthropic pressures. The two study areas showed similar behavior in relation to physical parameters (air temperature, incoming radiation, vapor pressure deficit, and relative humidity), except for soil temperature. The SC area presented a surface temperature of 3 °C higher than the DC, related to their vegetation cover differences. The SC area had higher annual evapotranspiration, representing 74% of the precipitation for the DC area and 90% for the SC area. The two areas acted as a carbon sink during the study period, with the SC area showing a lower CO2 absorption capacity. On average, the DC area absorbs 2.5 times more carbon than the SC area, indicating that Caatinga deforestation affects evaporative fluxes, reducing atmospheric carbon fixation and influencing the ability to mitigate the effects of increased greenhouse gas concentrations in the atmosphere.
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Affiliation(s)
- Michele L de Oliveira
- Graduate Program in Engineering and Natural Resources Management, Federal University of Campina Grande, Campina Grande, Paraíba 58109-970, Brazil
| | - Carlos A C Dos Santos
- Graduate Program in Engineering and Natural Resources Management, Federal University of Campina Grande, Campina Grande, Paraíba 58109-970, Brazil; Academic Unit of Atmospheric Sciences, Federal University of Campina Grande, Campina Grande, Paraíba 58109-970, Brazil.
| | - Gabriel de Oliveira
- Department of Earth Sciences, University of South Alabama, Mobile, AL 36688, USA
| | | | - Celso A G Santos
- Department of Civil and Environmental Engineering, Federal University of Paraíba, Paraíba, João Pessoa 58051-900, Brazil
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6
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Soil Nitrogen Dynamics in a Managed Temperate Grassland Under Changed Climatic Conditions. WATER 2021. [DOI: 10.3390/w13070931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Grasslands are one of the most common biomes in the world with a wide range of ecosystem services. Nevertheless, quantitative data on the change in nitrogen dynamics in extensively managed temperate grasslands caused by a shift from energy- to water-limited climatic conditions have not yet been reported. In this study, we experimentally studied this shift by translocating undisturbed soil monoliths from an energy-limited site (Rollesbroich) to a water-limited site (Selhausen). The soil monoliths were contained in weighable lysimeters and monitored for their water and nitrogen balance in the period between 2012 and 2018. At the water-limited site (Selhausen), annual plant nitrogen uptake decreased due to water stress compared to the energy-limited site (Rollesbroich), while nitrogen uptake was higher at the beginning of the growing period. Possibly because of this lower plant uptake, the lysimeters at the water-limited site showed an increased inorganic nitrogen concentration in the soil solution, indicating a higher net mineralization rate. The N2O gas emissions and nitrogen leaching remained low at both sites. Our findings suggest that in the short term, fertilizer should consequently be applied early in the growing period to increase nitrogen uptake and decrease nitrogen losses. Moreover, a shift from energy-limited to water-limited conditions will have a limited effect on gaseous nitrogen emissions and nitrate concentrations in the groundwater in the grassland type of this study because higher nitrogen concentrations are (over-) compensated by lower leaching rates.
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Peters W, Bastos A, Ciais P, Vermeulen A. A historical, geographical and ecological perspective on the 2018 European summer drought. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190505. [PMID: 32892723 DOI: 10.1098/rstb.2019.0505] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Wouter Peters
- Department of Meteorology and Air Quality, Wageningen University, Wageningen, The Netherlands.,Centre for Isotope Research Groningen, Groningen University, Groningen, The Netherlands
| | - Ana Bastos
- Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Philippe Ciais
- Laboratoire des Sciences du Climat et de l'Environnement, Gif-sur-Yvette, France
| | - Alex Vermeulen
- Integrated Carbon Observing System (ICOS ERIC), Carbon Portal, Lund, Sweden
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8
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Gourlez de la Motte L, Beauclaire Q, Heinesch B, Cuntz M, Foltýnová L, Šigut L, Kowalska N, Manca G, Ballarin IG, Vincke C, Roland M, Ibrom A, Lousteau D, Siebicke L, Neiryink J, Longdoz B. Non-stomatal processes reduce gross primary productivity in temperate forest ecosystems during severe edaphic drought. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190527. [PMID: 32892725 DOI: 10.1098/rstb.2019.0527] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Severe drought events are known to cause important reductions of gross primary productivity (GPP) in forest ecosystems. However, it is still unclear whether this reduction originates from stomatal closure (Stomatal Origin Limitation) and/or non-stomatal limitations (Non-SOL). In this study, we investigated the impact of edaphic drought in 2018 on GPP and its origin (SOL, NSOL) using a dataset of 10 European forest ecosystem flux towers. In all stations where GPP reductions were observed during the drought, these were largely explained by declines in the maximum apparent canopy scale carboxylation rate VCMAX,APP (NSOL) when the soil relative extractable water content dropped below around 0.4. Concurrently, we found that the stomatal slope parameter (G1, related to SOL) of the Medlyn et al. unified optimization model linking vegetation conductance and GPP remained relatively constant. These results strengthen the increasing evidence that NSOL should be included in stomatal conductance/photosynthesis models to faithfully simulate both GPP and water fluxes in forest ecosystems during severe drought. This article is part of the theme issue 'Impacts of the 2018 severe drought and heatwave in Europe: from site to continental scale'.
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Affiliation(s)
- Louis Gourlez de la Motte
- Terra Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Quentin Beauclaire
- Terra Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Bernard Heinesch
- Terra Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Mathias Cuntz
- Université de Lorraine, AgroParisTech, INRA, UMR Silva, 54000 Nancy, France
| | | | - Ladislav Šigut
- Global Change Research Institute CAS, Brno, Czech Republic
| | | | - Giovanni Manca
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | | | - Caroline Vincke
- Earth and Life Institute, UCLouvain, Louvain-la-Neuve, Belgium
| | - Marilyn Roland
- Plants and Ecosystems, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Andreas Ibrom
- Department of Environmental Engineering, Technical University of Denmark (DTU), Bygningstorvet 115, 2800 Lyngby, Denmark
| | | | - Lukas Siebicke
- Bioclimatology, University of Goettingen, Büsgenweg 2, 37077 Goettingen, Germany
| | - Johan Neiryink
- Institute for Nature and Forest Research, INBO, Havenlaan 88 Box 73, 1000 Brussels, Belgium
| | - Bernard Longdoz
- Terra Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
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9
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Smith NE, Kooijmans LMJ, Koren G, van Schaik E, van der Woude AM, Wanders N, Ramonet M, Xueref-Remy I, Siebicke L, Manca G, Brümmer C, Baker IT, Haynes KD, Luijkx IT, Peters W. Spring enhancement and summer reduction in carbon uptake during the 2018 drought in northwestern Europe. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190509. [PMID: 32892721 PMCID: PMC7485100 DOI: 10.1098/rstb.2019.0509] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We analysed gross primary productivity (GPP), total ecosystem respiration (TER) and the resulting net ecosystem exchange (NEE) of carbon dioxide (CO2) by the terrestrial biosphere during the summer of 2018 through observed changes across the Integrated Carbon Observation System (ICOS) network, through biosphere and inverse modelling, and through remote sensing. Highly correlated yet independently-derived reductions in productivity from sun-induced fluorescence, vegetative near-infrared reflectance, and GPP simulated by the Simple Biosphere model version 4 (SiB4) suggest a 130–340 TgC GPP reduction in July–August–September (JAS) of 2018. This occurs over an area of 1.6 × 106 km2 with anomalously low precipitation in northwestern and central Europe. In this drought-affected area, reduced GPP, TER, NEE and soil moisture at ICOS ecosystem sites are reproduced satisfactorily by the SiB4 model. We found that, in contrast to the preceding 5 years, low soil moisture is the main stress factor across the affected area. SiB4’s NEE reduction by 57 TgC for JAS coincides with anomalously high atmospheric CO2 observations in 2018, and this is closely matched by the NEE anomaly derived by CarbonTracker Europe (52 to 83 TgC). Increased NEE during the spring (May–June) of 2018 (SiB4 −52 TgC; CTE −46 to −55 TgC) largely offset this loss, as ecosystems took advantage of favourable growth conditions. This article is part of the theme issue ‘Impacts of the 2018 severe drought and heatwave in Europe: from site to continental scale’.
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Affiliation(s)
- Naomi E Smith
- Meteorology and Air Quality, Wageningen University and Research, Wageningen, The Netherlands
| | - Linda M J Kooijmans
- Meteorology and Air Quality, Wageningen University and Research, Wageningen, The Netherlands
| | - Gerbrand Koren
- Meteorology and Air Quality, Wageningen University and Research, Wageningen, The Netherlands
| | - Erik van Schaik
- Meteorology and Air Quality, Wageningen University and Research, Wageningen, The Netherlands
| | - Auke M van der Woude
- Meteorology and Air Quality, Wageningen University and Research, Wageningen, The Netherlands.,Centre for Isotope Research, University of Groningen, Groningen, The Netherlands
| | - Niko Wanders
- Department of Physical Geography, Faculty of Geosciences, Utrecht University, Utrecht, The Netherlands
| | - Michel Ramonet
- Université Aix Marseille, Université Avignon, CNRS, IRD, Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Marseille, France
| | - Irène Xueref-Remy
- Université Aix Marseille, Université Avignon, CNRS, IRD, Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE), Marseille, France
| | - Lukas Siebicke
- University of Göttingen, Bioclimatology, Büsgenweg 2, 37077 Göttingen, Niedersachsen, Germany
| | - Giovanni Manca
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Christian Brümmer
- Thünen Institute of Climate-Smart Agriculture, Bundesallee 65, 38116 Braunschweig, Germany
| | - Ian T Baker
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
| | - Katherine D Haynes
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
| | - Ingrid T Luijkx
- Meteorology and Air Quality, Wageningen University and Research, Wageningen, The Netherlands
| | - Wouter Peters
- Meteorology and Air Quality, Wageningen University and Research, Wageningen, The Netherlands.,Centre for Isotope Research, University of Groningen, Groningen, The Netherlands
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