FERNÁNDEZ-MARTÍNEZ, M.; VICCA, S.; JANSSENS, I. A.; CIAIS, Philippe; OBERSTEINER, M.; BARTRONS, M.; SARDANS, J.; VERGER, A.; CANADELL, J. G.; CHEVALLIER, F.; WANG, X.; BERNHOFER, C.; CURTIS, P. S.; GIANELLE, D.; GRÜNWALD, T.; HEINESCH, B.; IBROM, A.; KNOHL, A.; LAURILA, T.; LAW, B. E.; LIMOUSIN, J. M.; LONGDOZ, Bernard; LOUSTAU, Denis; MAMMARELLA, I.; MATTEUCCI, G.; MONSON, R. K.; MONTAGNANI, L.; MOORS, E. J.; MUNGER, J. W.; PAPALE, D.; PIAO, S. L.; PEÑUELAS, J.

doi:10.1038/s41598-017-08755-8

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FERNÁNDEZ-MARTÍNEZ, M.
Global Ecology Unit, CREAF-CSIC-UAB
Centre de Recerca Ecològica i Aplicacions Forestals [CREAF]

VICCA, S.
Excellence PLECO (Plant and Vegetation Ecology), Department of Biology

JANSSENS, I. A.
Excellence PLECO (Plant and Vegetation Ecology), Department of Biology

FERNÁNDEZ-MARTÍNEZ, M.
Global Ecology Unit, CREAF-CSIC-UAB
Centre de Recerca Ecològica i Aplicacions Forestals [CREAF]

VICCA, S.
Excellence PLECO (Plant and Vegetation Ecology), Department of Biology

JANSSENS, I. A.
Excellence PLECO (Plant and Vegetation Ecology), Department of Biology

CIAIS, Philippe
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
ICOS-ATC [ICOS-ATC]

OBERSTEINER, M.
International Institute for Applied Systems Analysis [IIASA]

BARTRONS, M.
Global Ecology Unit, CREAF-CSIC-UAB
Centre de Recerca Ecològica i Aplicacions Forestals [CREAF]

SARDANS, J.
Global Ecology Unit, CREAF-CSIC-UAB
Centre de Recerca Ecològica i Aplicacions Forestals [CREAF]

VERGER, A.
Global Ecology Unit, CREAF-CSIC-UAB
Centre de Recerca Ecològica i Aplicacions Forestals [CREAF]

CANADELL, J. G.
Global Carbon Project

CHEVALLIER, F.
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Modélisation INVerse pour les mesures atmosphériques et SATellitaires [SATINV]

WANG, X.
Sino-French Institute of Earth System Science, College of Urban and Environmental Sciences
Laboratoire de Météorologie Dynamique (UMR 8539) [LMD]

BERNHOFER, C.
Institut für Hydrologie und Meteorologie [Dresden]

CURTIS, P. S.
Department of Evolution, Ecology, and Organismal Biology

GIANELLE, D.
Foxlab Joint CNR-FEM Initiative
Fondazione Edmund Mach - Edmund Mach Foundation [Italie] [FEM]

GRÜNWALD, T.
Institut für Hydrologie und Meteorologie [Dresden]

HEINESCH, B.
Department of Biosystem Engineering (BioSE), Gembloux Agro-Bio Tech

IBROM, A.
Department of Environmental Engineering

KNOHL, A.
Bioclimatology, Faculty of Forest Sciences and Forest Ecology

LAURILA, T.
Finnish Meteorological Institute [FMI]

LAW, B. E.
Department of Forest Ecosystems & Society

LIMOUSIN, J. M.
Centre d’Ecologie Fonctionnelle et Evolutive [CEFE]
Université de Montpellier [UM]

LONGDOZ, Bernard
Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] [EEF]

LOUSTAU, Denis
Interactions Sol Plante Atmosphère [UMR ISPA]

MAMMARELLA, I.
Department of Physics [Helsinki]

MATTEUCCI, G.
National Research Council of Italy [CNR]
National Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]

MONSON, R. K.
Laboratory of Tree-Ring Research [University of Arizona] [LTRR]

MONTAGNANI, L.
Forest Services
Faculty of Science and Technology

MOORS, E. J.
Alterra Wageningen
Vrije Universiteit Amsterdam [Amsterdam] [VU]

MUNGER, J. W.
Harvard John A. Paulson School of Engineering and Applied Sciences [SEAS]

PAPALE, D.
DIBAF

PIAO, S. L.
Sino-French Institute of Earth System Science, College of Urban and Environmental Sciences
Institute of Tibetan Plateau Research

PEÑUELAS, J.
Global Ecology Unit, CREAF-CSIC-UAB
Centre de Recerca Ecològica i Aplicacions Forestals [CREAF]

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Scientific Reports. 2017, vol. 7, n° 1, p. 1-13

Nature Publishing Group

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Concentrations of atmospheric carbon dioxide (CO2) have continued to increase whereas atmospheric deposition of sulphur and nitrogen has declined in Europe and the USA during recent decades. Using time series of flux observations from 23 forests distributed throughout Europe and the USA, and generalised mixed models, we found that forest-level net ecosystem production and gross primary production have increased by 1% annually from 1995 to 2011. Statistical models indicated that increasing atmospheric CO2 was the most important factor driving the increasing strength of carbon sinks in these forests. We also found that the reduction of sulphur deposition in Europe and the USA lead to higher recovery in ecosystem respiration than in gross primary production, thus limiting the increase of carbon sequestration. By contrast, trends in climate and nitrogen deposition did not significantly contribute to changing carbon fluxes during the studied period. Our findings support the hypothesis of a general CO2-fertilization effect on vegetation growth and suggest that, so far unknown, sulphur deposition plays a significant role in the carbon balance of forests in industrialized regions. Our results show the need to include the effects of changing atmospheric composition, beyond CO2, to assess future dynamics of carbon-climate feedbacks not currently considered in earth system/climate modelling.< Réduire

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forêt

europe

états-unis

carbone

dépôt atmosphérique

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forest

usa

carbon

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Atmospheric deposition, CO2, and change in the land carbon sink

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