Title: Terrestrial Gross Carbon Dioxide Uptake: Global Distribution and Covariation with Climate
Authors: BEER ChristianREICHSTEIN MarkusTOMELLERI EnricoCIAIS PhilippeJUNG MartinCARVALHAIS NunoRODENBECK ChristianARAIN AltafBALDOCCHI DennisBONAN Gordon B.BONDEAU AlberteCESCATTI AlessandroLASSLOP GittaLINDROTH AndersLOMAS MarkLUYSSAERT SebastiaanMARGOLIS HankOLESON Keith W.ROUPSARD OlivierVEENENDAAL ElmarVIOVY NicolasWILLIAMS ChristopherWOODWARD F. IanPAPALE Dario
Citation: SCIENCE vol. 329 no. 5993 p. 834-838
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Publication Year: 2010
JRC Publication N°: JRC59049
ISSN: 0036-8075
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC59049
DOI: 10.1126/science.1184984
Type: Articles in Journals
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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