• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • Marine Biological Laboratory
    • Ecosystems Center
    • View Item
    •   WHOAS Home
    • Marine Biological Laboratory
    • Ecosystems Center
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WHOASCommunities & CollectionsBy Issue DateAuthorsTitlesKeywordsThis CollectionBy Issue DateAuthorsTitlesKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems

    Thumbnail
    View/Open
    GCB-Euskirchen-etal-GCB05-294-manuscript.pdf (800.1Kb)
    Date
    2005-10-07
    Author
    Euskirchen, Eugenie  Concept link
    McGuire, A. David  Concept link
    Kicklighter, David W.  Concept link
    Zhuang, Qianlai  Concept link
    Clein, Joy S.  Concept link
    Dargaville, R. J.  Concept link
    Dye, D. G.  Concept link
    Kimball, John S.  Concept link
    McDonald, Kyle C.  Concept link
    Melillo, Jerry M.  Concept link
    Romanovsky, Vladimir  Concept link
    Smith, N. V.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/909
    As published
    https://doi.org/10.1111/j.1365-2486.2006.01113.x
    Keyword
     Growing season; Carbon sequestration; Productivity; Respiration; Snow cover; Permafrost; Climate change; Terrestrial ecosystem model 
    Abstract
    In terrestrial high-latitude regions, observations indicate recent changes in snow cover, permafrost, and soil freeze-thaw transitions due to climate change. These modifications may result in temporal shifts in the growing season and the associated rates of terrestrial productivity. Changes in productivity will influence the ability of these ecosystems to sequester atmospheric CO2. We use the Terrestrial Ecosystem Model (TEM), which simulates the soil thermal regime, in addition to terrestrial carbon, nitrogen and water dynamics, to explore these issues over the years 1960-2100 in extratropical regions (30°-90°N). Our model simulations show decreases in snow cover and permafrost stability from 1960 to 2100. Decreases in snow cover agree well with NOAA satellite observations collected between the years 1972-2000, with Pearson rank correlation coefficients between 0.58-0.65. Model analyses also indicate a trend towards an earlier thaw date of frozen soils and the onset of the growing season in the spring by approximately 2-4 days from 1988-2000. Between 1988 and 2000, satellite records yield a slightly stronger trend in thaw and the onset of the growing season, averaging between 5-8 days earlier. In both the TEM simulations and satellite records, trends in day of freeze in the autumn are weaker, such that overall increases in growing season length are due primarily to earlier thaw. Although regions with the longest snow cover duration displayed the greatest increase in growing season length, these regions maintained smaller increases in productivity and heterotrophic respiration than those regions with shorter duration of snow cover and less of an increase in growing season length. Concurrent with increases in growing season length, we found a reduction in soil carbon and increases in vegetation carbon, with greatest losses of soil carbon occurring in those areas with more vegetation, but simulations also suggest that this trend could reverse in the future. Our results reveal noteworthy changes in snow, permafrost, growing season length, productivity, and net carbon uptake, indicating that prediction of terrestrial carbon dynamics from one decade to the next will require that large-scale models adequately take into account the corresponding changes in soil thermal regimes.
    Description
    Author Posting. © The Authors, 2005. This is the author's version of the work. It is posted here by permission of Blackwell for personal use, not for redistribution. The definitive version was published in Global Change Biology 12 (2006): 731-750, doi:10.1111/j.1365-2486.2006.01113.x.
    Collections
    • Ecosystems Center
    Suggested Citation
    Preprint: Euskirchen, Eugenie, McGuire, A. David, Kicklighter, David W., Zhuang, Qianlai, Clein, Joy S., Dargaville, R. J., Dye, D. G., Kimball, John S., McDonald, Kyle C., Melillo, Jerry M., Romanovsky, Vladimir, Smith, N. V., "Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystems", 2005-10-07, https://doi.org/10.1111/j.1365-2486.2006.01113.x, https://hdl.handle.net/1912/909
     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Effects of ozone on net primary production and carbon sequestration in the conterminous United States using a biogeochemistry model 

      Felzer, Benjamin S.; Kicklighter, David W.; Melillo, Jerry M.; Wang, C.; Zhuang, Qianlai; Prinn, Ronald G. (2003-11-25)
      The effects of air pollution on vegetation may provide an important control on the carbon cycle that has not yet been widely considered. Prolonged exposure to high levels of ozone, in particular, has been observed to ...
    • Thumbnail

      Effects of tropospheric ozone pollution on net primary productivity and carbon storage in terrestrial ecosystems of China 

      Ren, Wei; Tian, Hanqin; Liu, Mingliang; Zhang, Chi; Chen, Guangsheng; Pan, Shufen; Felzer, Benjamin S.; Xu, Xiaofeng (American Geophysical Union, 2007-11-17)
      We investigated the potential effects of elevated ozone (O3) along with climate variability, increasing CO2, and land use change on net primary productivity (NPP) and carbon storage in China's terrestrial ecosystems for ...
    • Thumbnail

      Importance of soil thermal regime in terrestrial ecosystem carbon dynamics in the circumpolar north 

      Jiang, Yueyang; Zhuang, Qianlai; Sitch, Stephen; O'Donnell, Jonathan A.; Kicklighter, David W.; Sokolov, Andrei P.; Melillo, Jerry M. (2016-04-19)
      In the circumpolar north (45-90°N), permafrost plays an important role in vegetation and carbon (C) dynamics. Permafrost thawing has been accelerated by the warming climate and exerts a positive feedback to climate through ...
    All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
    A service of the MBLWHOI Library | About WHOAS
    Contact Us | Send Feedback | Privacy Policy
    Core Trust Logo