The dominant role of semi-arid ecosystems in the trend and variability of the land CO 2 sink
Ahlstrom, A.; Raupach, Michael; Schurgers, Guy; Smith, Benjamin; Arneth, Almut; Jung, Martin; Reichstein, M; Canadell, Josep G.; Friedlingstein , P.; Jain, A.K.; Kato, Etsushi; Poulter, B.; Sitch, Stephen; Stocker, B.D.; Viovy, N.; Wang, Ying Ping; Wiltshire, Andy; Zaehle, S.; Zeng, N.
The growth rate of atmospheric carbon dioxide (CO<inf>2</inf>) concentrations since industrialization is characterized by large interannual variability, mostly resulting from variability in CO<inf>2</inf> uptake by terrestrial ecosystems (typically termed carbon sink). However, the contributions of regional ecosystems to that variability are not well known. Using an ensemble of ecosystem and landsurface models and an empirical observation-based product of global gross primary production, we...[Show more]
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