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  Recent patterns and mechanisms of carbon exchange by terrestrial ecosystems

Schimel, D. S., House, J. I., Hibbard, K. A., Bousquet, P., Ciais, P., Peylin, P., et al. (2001). Recent patterns and mechanisms of carbon exchange by terrestrial ecosystems. Nature, 414(6860), 169-172. doi:10.1038/35102500.

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BGC0408.pdf (Verlagsversion), 143KB
 
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Schimel, D. S.1, Autor           
House, J. I.2, Autor           
Hibbard, K. A., Autor
Bousquet, P., Autor
Ciais, P., Autor
Peylin, P., Autor
Braswell, B. H., Autor
Apps, M. J., Autor
Baker, D., Autor
Bondeau, A., Autor
Canadell, J., Autor
Churkina, G.3, Autor           
Cramer, W., Autor
Denning, A. S., Autor
Field, C. B., Autor
Friedlingstein, P., Autor
Goodale, C., Autor
Heimann, M.3, Autor           
Houghton, R. A., Autor
Melillo, J. M., Autor
Moore Iii, B., AutorMurdiyarso, D., AutorNoble, I., AutorPacala, S. W., AutorPrentice, I. C.2, Autor           Raupach, M. R., AutorRayner, P. J., AutorScholes, R. J., AutorSteffen, W. L., AutorWirth, C.4, Autor            mehr..
Affiliations:
1Department Biogeochemical Systems, Prof. D. Schimel, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497754              
2Department Biogeochemical Synthesis, Prof. C. Prentice, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497753              
3Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497755              
4Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497751              

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Schlagwörter: Atmospheric CO2; interannual variability; dioxide; fluxes; models; land; temperature; biomass; forests; budget
 Zusammenfassung: Knowledge of carbon exchange between the atmosphere, land and the oceans is important, given that the terrestrial and marine environments are currently absorbing about half of the carbon dioxide that is emitted by fossil-fuel combustion. This carbon uptake is therefore limiting the extent of atmospheric and climatic change, but its long-term nature remains uncertain. Here we provide an overview of the current state of knowledge of global and regional patterns of carbon exchange by terrestrial ecosystems. Atmospheric carbon dioxide and oxygen data confirm that the terrestrial biosphere was largely neutral with respect to net carbon exchange during the 1980s, but became a net carbon sink in the 1990s. This recent sink can be largely attributed to northern extratropical areas, and is roughly split between North America and Eurasia. Tropical land areas, however, were approximately in balance with respect to carbon exchange, implying a carbon sink that offset emissions due to tropical deforestation. The evolution of the terrestrial carbon sink is largely the result of changes in land use over time, such as regrowth on abandoned agricultural land and fire prevention, in addition to responses to environmental changes, such as longer growing seasons, and fertilization by carbon dioxide and nitrogen. Nevertheless, there remain considerable uncertainties as to the magnitude of the sink in different regions and the contribution of different processes.

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Sprache(n): eng - English
 Datum: 2001
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Identifikatoren: Anderer: BGC0408
DOI: 10.1038/35102500
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Titel: Nature
  Kurztitel : Nature
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: London : Nature Publishing Group
Seiten: - Band / Heft: 414 (6860) Artikelnummer: - Start- / Endseite: 169 - 172 Identifikator: ISSN: 0028-0836
CoNE: https://pure.mpg.de/cone/journals/resource/954925427238