TY - JOUR
T1 - Terrestrial gross carbon dioxide uptake
T2 - Global distribution and covariation with climate
AU - Beer, Christian
AU - Reichstein, Markus
AU - Tomelleri, Enrico
AU - Ciais, Philippe
AU - Jung, Martin
AU - Carvalhais, Nuno
AU - Rödenbeck, Christian
AU - Arain, M. Altaf
AU - Baldocchi, Dennis D.
AU - Bonan, Gordon B.
AU - Bondeau, Alberte
AU - Cescatti, Alessandro
AU - Lasslop, Gitta
AU - Lindroth, Anders
AU - Lomas, Mark
AU - Luyssaert, Sebastiaan
AU - Margolis, Hank
AU - Oleson, Keith W.
AU - Roupsard, Olivier
AU - Veenendaal, Elmar
AU - Viovy, Nicolas
AU - Williams, Christopher M.
AU - Woodward, F. Ian
AU - Papale, Dario
PY - 2010/8/13
Y1 - 2010/8/13
N2 - Terrestrial gross primary production (GPP) is the largest global CO 2 flux driving several ecosystem functions. We provide an observation-based estimate of this flux at 123 ± 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.
AB - Terrestrial gross primary production (GPP) is the largest global CO 2 flux driving several ecosystem functions. We provide an observation-based estimate of this flux at 123 ± 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.
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U2 - 10.1126/science.1184984
DO - 10.1126/science.1184984
M3 - Article
C2 - 20603496
AN - SCOPUS:77955623505
SN - 0036-8075
VL - 329
SP - 834
EP - 838
JO - Science
JF - Science
IS - 5993
ER -