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    • Journal of Range Management, Volume 52 (1999)
    • Journal of Range Management, Volume 52, Number 6 (November 1999)
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    Soil carbon and nitrogen changes following root-plowing of rangeland

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    Author
    Teague, W. R.
    Foy, J. K.
    Cross, B. T.
    Dowhower, S. L.
    Issue Date
    1999-11-01
    Keywords
    Nassella leucotricha
    Sporobolus asper
    Nassella
    Bothriochloa saccharoides
    plowing
    soil organic matter
    Bothriochloa
    Sporobolus
    soil density
    Bouteloua curtipendula
    Buchloe dactyloides
    grassland improvement
    Prosopis
    brush control
    nitrogen content
    Texas
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    Citation
    Teague, W. R., Foy, J. K., Cross, B. T., & Dowhower, S. L. (1999). Soil carbon and nitrogen changes following root-plowing of rangeland. Journal of Range Management, 52(6), 666-670.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644019
    DOI
    10.2307/4003639
    Additional Links
    https://rangelands.org/
    Abstract
    The effects of root-plowing on soil organic carbon and nitrogen were investigated by comparing paired undisturbed native rangeland with root-plowed sites in the southern Great Plains. Time since root-plowing ranged from 4 to 22 years. We hypothesized that following root-plowing (1) soil carbon would initially drop but recover to the level of untreated range within a 5-10 year period, and (2) the permanent removal of mesquite trees, which enhance ecosystem carbon and nitrogen and provide shade that lowers soil temperature, would result in a slow decline in soil carbon and nitrogen in this ecosystem. There were not significant differences due to treatment for either soil carbon mass (g m-2) (P=0.81) or nitrogen mass (P=0.62). There were significant differences in soil carbon mass (P=0.0014) with respect to elapsed time since plowing. The upper soil layer (0-100mm) had higher carbon levels (P=0.0001) than the deeper soil layer (100-200mm)(1422 +/- 210 g m-2 vs. 1111 +/- 206 g m-2). Differences in soil nitrogen were similar to those of soil carbon. There were significant differences in nitrogen among years-since-root-plowing observations (P=0.003) and the upper soil layer had higher nitrogen levels than the deeper soil layer 138 +/- 18 g m-2 vs. 107 +/- 18 g m-2) (P=0.0001). When the data were analyzed using paired native site values as covariate to account for site differences, the sites that had been root-plowed 4 years previously had higher soil carbon (p
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003639
    Scopus Count
    Collections
    Journal of Range Management, Volume 52, Number 6 (November 1999)

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