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    • Journal of Range Management, Volume 50 (1997)
    • Journal of Range Management, Volume 50, Number 2 (March 1997)
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    Bladeploughing and exclosure influence soil properties in a semi-arid Australian woodland

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    Author
    Eldridge, D. J.
    Robson, A. D.
    Issue Date
    1997-03-01
    Keywords
    blade plowing
    New South Wales
    crusts
    hydrology
    semiarid grasslands
    soil erosion
    runoff
    grazing intensity
    shrubs
    sediment yield
    range management
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    Citation
    Eldridge, D. J., & Robson, A. D. (1997). Bladeploughing and exclosure influence soil properties in a semi-arid Australian woodland. Journal of Range Management, 50(2), 191-198.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644057
    DOI
    10.2307/4002380
    Additional Links
    https://rangelands.org/
    Abstract
    Runoff and sediment yield were evaluated on a sandplain dominated by woody perennial shrubs in north-western NSW, Australia. The site was bladeploughed; and some plots were grazed by sheep and cattle and others exclosed from grazing. Two years after ploughing and exclosure, grazed plots had significantly lower levels of aggregate stability and organic carbon compared with ungrazed plots, but there was no effect of ploughing. Surface pH levels were significantly greater on unploughed plots compared with ploughed plots. Two years after treatment, runoff and sediment yield were greatest on plots with the least disturbance (unploughed and ungrazed) and least on sites with the greatest disturbance (ploughed and grazed). We attribute differences in soil hydrology to the development of a thin physical soil crust on the unploughed-ungrazed plots, which restricted infiltration. On the ungrazed plots, increases in plant cover and biomass, and colonisation of the physical crust by biological elements, are hypothesised to lead to reduced runoff and sediment yield over time.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002380
    Scopus Count
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    Journal of Range Management, Volume 50, Number 2 (March 1997)

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