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    Tree-ring isotopes capture interannual vegetation productivity dynamics at the biome scale

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    s41467-019-08634-y.pdf
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    Author
    Levesque, Mathieu
    Andreu-Hayles, Laia
    Smith, William Kolby
    Williams, A Park
    Hobi, Martina L
    Allred, Brady W
    Pederson, Neil cc
    Affiliation
    Univ Arizona, Sch Nat Resources & Environm
    Issue Date
    2019-02-14
    
    Metadata
    Show full item record
    Publisher
    NATURE PUBLISHING GROUP
    Citation
    Levesque, M., Andreu-Hayles, L., Smith, W. K., Williams, A. P., Hobi, M. L., Allred, B. W., & Pederson, N. (2019). Tree-ring isotopes capture interannual vegetation productivity dynamics at the biome scale. Nature communications, 10(1), 742.
    Journal
    NATURE COMMUNICATIONS
    Rights
    © The Author(s) 2019.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Historical and future trends in net primary productivity (NPP) and its sensitivity to global change are largely unknown because of the lack of long-term, high-resolution data. Here we test whether annually resolved tree-ring stable carbon (δ13C) and oxygen (δ18O) isotopes can be used as proxies for reconstructing past NPP. Stable isotope chronologies from four sites within three distinct hydroclimatic environments in the eastern United States (US) were compared in time and space against satellite-derived NPP products, including the long-term Global Inventory Modeling and Mapping Studies (GIMMS3g) NPP (1982-2011), the newest high-resolution Landsat NPP (1986-2015), and the Moderate Resolution Imaging Spectroradiometer (MODIS, 2001-2015) NPP. We show that tree-ring isotopes, in particular δ18O, correlate strongly with satellite NPP estimates at both local and large geographical scales in the eastern US. These findings represent an important breakthrough for estimating interannual variability and long-term changes in terrestrial productivity at the biome scale.
    Note
    Open access journal
    ISSN
    2041-1723
    PubMed ID
    30765694
    DOI
    10.1038/s41467-019-08634-y
    Version
    Final published version
    Sponsors
    Lamont-Doherty Earth Observatory Climate Center grant; National Science Foundation [PLR 15-04134]; Swiss National Science Foundation [P2EZP2_152213, P300P2_164637]; Columbia University's Center for Climate and Life
    Additional Links
    https://www.nature.com/articles/s41467-019-08634-y
    ae974a485f413a2113503eed53cd6c53
    10.1038/s41467-019-08634-y
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