Terrestrial gross carbon dioxide uptake: Global distribution and covariation with climate

Beer Christian, Reichstein Markus, Tomelleri Enrico, Ciais Philippe, Jung Martin, Carvalhais Nuno, Rödenbeck Christian, Arain M. Altaf, Baldocchi Daniel, Bonan Gordon, Bondeau Alberte, Cescatti Alessandro, Lasslop Gitta, Lindroth Anders, Lomas Mark, Luyssaert Sebastiaan, Margolis Hank, Oleson Keith, Roupsard Olivier, Veenendaal Elmar M., Viovy Nicolas, Williams Christopher, Woodward F. Ian, Papale Dario. 2010. Terrestrial gross carbon dioxide uptake: Global distribution and covariation with climate. Science, 329 : 834-838.

Quartile : Outlier, Sujet : MULTIDISCIPLINARY SCIENCES

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Anthropologie-Ethnologie; Economie-gestion; Psychologie-éthologie-ergonomie; Sociologie-démographie

Résumé : Terrestrial gross primary production (GPP) is the largest global CO2 flux driving several ecosystem functions. We provide an observation-based estimate of this flux at 123 T 8 petagrams of carbon per year (Pg C year?1) using eddy covariance flux data and various diagnostic models. Tropical forests and savannahs account for 60%. GPP over 40% of the vegetated land is associated with precipitation. State-of-the-art process-oriented biosphere models used for climate predictions exhibit a large between-model variation of GPP's latitudinal patterns and show higher spatial correlations between GPP and precipitation, suggesting the existence of missing processes or feedback mechanisms which attenuate the vegetation response to climate. Our estimates of spatially distributed GPP and its covariation with climate can help improve coupled climate-carbon cycle process models.

Mots-clés Agrovoc : dioxyde de carbone, cycle du carbone, changement climatique, modèle de simulation, écosystème, végétation, forêt tropicale, savane

Classification Agris : U10 - Informatique, mathématiques et statistiques
P01 - Conservation de la nature et ressources foncières
K01 - Foresterie - Considérations générales
P40 - Météorologie et climatologie

Champ stratégique Cirad : Axe 6 (2005-2013) - Agriculture, environnement, nature et sociétés

Auteurs et affiliations

• Beer Christian, Max Planck Institut für Biogeochemie (DEU)
• Reichstein Markus, Max Planck Institut für Biogeochemie (DEU)
• Tomelleri Enrico, Max Planck Institut für Biogeochemie (DEU)
• Ciais Philippe, CNRS (FRA)
• Jung Martin, Max Planck Institut für Biogeochemie (DEU)
• Carvalhais Nuno, Max Planck Institut für Biogeochemie (DEU)
• Rödenbeck Christian, Max Planck Institut für Biogeochemie (DEU)
• Arain M. Altaf, McMaster University (CAN)
• Baldocchi Daniel, UC (USA)
• Bonan Gordon, National Center for Atmospheric Research (USA)
• Bondeau Alberte, Potsdam Institute for Climate Impact Research (DEU)
• Cescatti Alessandro, IES (ITA)
• Lasslop Gitta, Max Planck Institut für Biogeochemie (DEU)
• Lindroth Anders, University of Lund (SWE)
• Lomas Mark, University of Sheffield (GBR)
• Luyssaert Sebastiaan, University of Antwerp (BEL)
• Margolis Hank, Université Laval (CAN)
• Oleson Keith, National Center for Atmospheric Research (USA)
• Roupsard Olivier, CIRAD-PERSYST-UPR Ecosystèmes de plantations (CRI)
• Veenendaal Elmar M., Wageningen Agricultural University (NLD)
• Viovy Nicolas, CNRS (FRA)
• Williams Christopher, Clark University (USA)
• Woodward F. Ian, University of Sheffield (GBR)
• Papale Dario, Università degli studi della Tuscia (ITA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/557782/)

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