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    CO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century

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    Article (98.27Kb)
    Additional file information (2.642Kb)
    Table S1: Data for 50% fire with CO2 fertilization effects (555bytes)
    Table S2: Data for 50% fire with no CO2 fertilization effects (131bytes)
    Table S3: Data for 100% fire with CO2 fertilization effects (128bytes)
    Table S4: Data for 100% fire with no CO2 fertilization effects (126bytes)
    Table S5: Data for 150% fire with CO2 fertilization effects (125bytes)
    Table S6: Data for 150% fire with no CO2 fertilization effects (120bytes)
    Date
    2006-09-15
    Author
    Zhuang, Qianlai  Concept link
    Melillo, Jerry M.  Concept link
    Sarofim, Marcus C.  Concept link
    Kicklighter, David W.  Concept link
    McGuire, A. David  Concept link
    Felzer, Benjamin S.  Concept link
    Sokolov, Andrei P.  Concept link
    Prinn, Ronald G.  Concept link
    Steudler, Paul A.  Concept link
    Hu, Shaomin  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/1264
    As published
    https://doi.org/10.1029/2006GL026972
    DOI
    10.1029/2006GL026972
    Abstract
    Terrestrial ecosystems of the northern high latitudes (above 50oN) exchange large amounts of CO2 and CH4 with the atmosphere each year. Here we use a process-based model to estimate the budget of CO2 and CH4 of the region for current climate conditions and for future scenarios by considering effects of permafrost dynamics, CO2 fertilization of photosynthesis and fire. We find that currently the region is a net source of carbon to the atmosphere at 276 Tg C yr-1. We project that throughout the 21st century, the region will most likely continue as a net source of carbon and the source will increase by up to 473 Tg C yr-1 by the end of the century compared to the current emissions. However our coupled carbon and climate model simulations show that these emissions will exert relatively small radiative forcing on global climate system compared to large amounts of anthropogenic emissions.
    Description
    Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 33 (2006): L17403, doi:10.1029/2006GL026972.
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    • Ecosystems Center
    Suggested Citation
    Article: Zhuang, Qianlai, Melillo, Jerry M., Sarofim, Marcus C., Kicklighter, David W., McGuire, A. David, Felzer, Benjamin S., Sokolov, Andrei P., Prinn, Ronald G., Steudler, Paul A., Hu, Shaomin, "CO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century", Geophysical Research Letters 33 (2006): L17403, DOI:10.1029/2006GL026972, https://hdl.handle.net/1912/1264
     

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