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  Carbon and nitrogen cycle dynamics in the O-CN land surface model, II: The role of the nitrogen cycle in the historical terrestrial carbon balance

Zaehle, S., Friend, A. D., Dentener, F., Friedlingstein, P., Peylin, P., & Schulz, M. (2010). Carbon and nitrogen cycle dynamics in the O-CN land surface model, II: The role of the nitrogen cycle in the historical terrestrial carbon balance. Global Biogeochemical Cycles, 24, GB1006. doi:10.1029/2009GB003522.

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BGC1319.pdf (Publisher version), 476KB
 
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http://dx.doi.org/10.1029/2009GB003522 (Publisher version)
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Zaehle, Sönke1, Author           
Friend, A. D., Author
Dentener, F., Author
Friedlingstein, P., Author
Peylin, P., Author
Schulz, M., Author
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1Terrestrial Biosphere Modelling , Dr. Sönke Zähle, Department Biogeochemical Integration, Prof. Dr. Martin Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497787              

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 Abstract: Global-scale results of the new O-CN terrestrial biosphere model coupling the carbon (C) and nitrogen (N) cycles show that the model produces realistic estimates of present-day C and N stocks and fluxes, despite some regional biases. N availability strongly affects high-latitude foliage area and foliage N, limiting vegetation productivity and present-day high-latitude net C uptake. Anthropogenic N deposition is predicted to have increased net primary productivity due to increases in foliage area and foliage N, contributing 0.2–0.5 Pg C yr−1 to the 1990s global net C uptake. While O‐CN's modeled global 1990s terrestrial net C uptake (2.4 Pg C yr−1) is similar to the estimate not accounting for anthropogenic N inputs and N dynamics (2.6 Pg C yr−1), its latitudinal distribution and the sensitivity of the terrestrial C balance to its driving factors are substantially altered by N dynamics, with important implications for future trajectories of the global carbon cycle.

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 Dates: 2010
 Publication Status: Issued
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 Identifiers: DOI: 10.1029/2009GB003522
Other: BGC1319
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Title: Global Biogeochemical Cycles
Source Genre: Journal
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Publ. Info: Washington, DC : American Geophysical Union
Pages: - Volume / Issue: 24 Sequence Number: - Start / End Page: GB1006 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/954925553383
ISSN: 0886-6236