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    • Rangeland Ecology & Management / Journal of Range Management
    • Rangeland Ecology & Management, Volume 67 (2014)
    • Rangeland Ecology & Management, Volume 67, Number 4 (July 2014)
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    Land management history of Canadian grasslands and the impact on soil carbon storage

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    Name:
    Land-Management-History-of-Can ...
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    Author
    Wang, X. cc
    Vandenbygaart, A. J.
    McConkey, B. C.
    Issue Date
    2014-07
    Keywords
    Canadian grazing grasslands
    Cultivation abandonment
    Grassland carbon restoration
    Grassland deterioration
    Naturalized grasslands
    Soil carbon sequestration
    
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    Citation
    Wang, X., Vandenbygaart, A. J., & McConkey, B. C. (2014). Land management history of Canadian grasslands and the impact on soil carbon storage. Rangeland Ecology & Management, 67(4), 333–343.
    Publisher
    Society for Range Management
    Journal
    Rangeland Ecology & Management
    URI
    http://hdl.handle.net/10150/656994
    DOI
    10.2111/REM-D-14-00006.1
    Additional Links
    https://rangelands.org/
    Abstract
    Grasslands represent a large potential reservoir in storing carbon (C) in plant biomass and soil organic matter via C sequestration, but the potential greatly depends on how grasslands are managed, especially for livestock and wild animal grazing. Positive and negative grazing effects on soil organic carbon have been reported by various studies globally, but it is not known if Canadian grasslands function as a source or a sink for atmospheric C under current management practices. This article examines the effect of grassland management on carbon storage by compiling historical range management facts and measurements from multiple experiments. Results indicate that grazing on grasslands has contributed to a net C sink in the top 15-cm depth under current utilization regimes with a removal rate of CO2 at 0.19 ± 0.02 Mg · C · ha-1 · yr-1 from the atmosphere during recent decades, and net C sequestration was estimated at 5.64 ± 0.97 Mg · C · ha-1 on average. Naturalization of 2.3 M ha of previously cultivated grasslands in the 1930s has also led to C sequestration in the Canadian prairies but has likely abated as the pool has saturated. Efforts made by researchers, policymakers, and the public has successfully led to the restoration of the Canadian prairies to a healthier state and to achieve considerable C sequestration in soils since their severe deterioration in the 1930s. In-depth analysis of management, legislation, and agricultural programs is urgently needed to place the focus on maintaining range health and achieving more C storage in soils, particularly when facing the reduced potential for further C sequestration. © 2014 The Society for Range Management.
    Type
    Article
    text
    Language
    en
    ISSN
    0022-409x
    ae974a485f413a2113503eed53cd6c53
    10.2111/REM-D-14-00006.1
    Scopus Count
    Collections
    Rangeland Ecology & Management, Volume 67, Number 4 (July 2014)

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