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The role of climate, foliar stoichiometry and plant diversity on ecosystem carbon balance
Fernández-Martínez, Marcos (University of Antwerp. Department of Biology (Belgium))
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Musavi, Talie (Max Planck Institute for Biogeochemistry. Department Biogeochemical Integration (Germany))
Migliavacca, Mirco (Max Planck Institute for Biogeochemistry. Department Biogeochemical Integration (Germany))
Iturrate-Garcia, Maitane (Federal Institute of Metrology. Department of Chemical and Biological Metrology (Switzerland))
Scholes, Robert J. (University of the Witwatersrand. Global Change Institute (South Africa))
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Janssens, Ivan (University of Antwerp. Department of Biology (Belgium))

Data: 2020
Resum: Global change is affecting terrestrial carbon (C) balances. The effect of climate on ecosystem C balance has been largely explored, but the roles of other concurrently changing factors, such as diversity and nutrient availability, remain elusive. We used eddy-covariance C-flux measurements from 62 ecosystems from which we compiled information on climate, ecosystem type, stand age, species abundance and foliar concentrations of N and P of the main species, to assess their importance in the ecosystem C balance. Climate and productivity were the main determinants of ecosystem C balance and its stability. In P-rich sites, increasing N was related to increased gross primary production and respiration and vice versa, but reduced net C uptake. Our analyses did not provide evidence for a strong relation between ecosystem diversity and their productivity and stability. Nonetheless, these results suggest that nutrient imbalances and, potentially, diversity loss may alter future global C balance.
Ajuts: Ministerio de Economía y Competitividad CGL2016-79835-P
European Commission 610028
Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1005
Drets: Tots els drets reservats.
Llengua: Anglès
Document: Article ; recerca ; Versió acceptada per publicar
Matèria: Elemental composition ; Ecosystem functioning ; Nitrogen ; Phosphorus ; Nutrients ; Biodiversity
Publicat a: Global change biology, vol.26 12 (October 2020) p. 7067-7078, ISSN 1365-2486

DOI: 10.1111/gcb.15385


Postprint
29 p, 1.5 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Articles de recerca
Articles > Articles publicats

 Registre creat el 2020-10-09, darrera modificació el 2023-11-12



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