Journal article
Terrestrial Gross Carbon Dioxide Uptake: Global Distribution and Covariation with Climate
Abstract
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 …
Authors
Beer C; Reichstein M; Tomelleri E; Ciais P; Jung M; Carvalhais N; Rödenbeck C; Arain MA; Baldocchi D; Bonan GB
Journal
Science, Vol. 329, No. 5993, pp. 834–838
Publisher
American Association for the Advancement of Science (AAAS)
Publication Date
August 13, 2010
DOI
10.1126/science.1184984
ISSN
0036-8075