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|Title:||Terrestrial Gross Carbon Dioxide Uptake: Global Distribution and Covariation with Climate|
|Authors:||BEER Christian; REICHSTEIN Markus; TOMELLERI Enrico; CIAIS Philippe; JUNG Martin; CARVALHAIS Nuno; RODENBECK Christian; ARAIN Altaf; BALDOCCHI Dennis; BONAN Gordon B.; BONDEAU Alberte; CESCATTI Alessandro; LASSLOP Gitta; LINDROTH Anders; LOMAS Mark; LUYSSAERT Sebastiaan; MARGOLIS Hank; OLESON Keith W.; ROUPSARD Olivier; VEENENDAAL Elmar; VIOVY Nicolas; WILLIAMS Christopher; WOODWARD F. Ian; PAPALE Dario|
|Citation:||SCIENCE vol. 329 no. 5993 p. 834-838|
|Publisher:||AMER ASSOC ADVANCEMENT SCIENCE|
|Type:||Articles in periodicals and books|
|Abstract:||Terrestrial gross primary production (GPP) is the largest global CO2 °ux driving several ecosystem functions. We provide an observation- based estimate of this °ux at 123§8 PgCa¡1 using eddy covariance °ux data and various diagnostic models. Tropical forests and sa- vannahs account for 60%. GPP over 40% of the vegetated land is associated with precipitation. State-of-the-art process-oriented bio- sphere models used for climate predictions exhibit a large between- model variation of GPP's latitudinal patterns and show higher spa- tial correlations between GPP and precipitation, suggesting the ex- istence of missing processes or feedback mechanisms which attenu- ate the vegetation response to climate. Our estimates of spatially distributed GPP and its co-variation with climate can help improve coupled climate-carbon cycle process models.|
|JRC Institute:||Institute for Environment and Sustainability|
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