Soil Moisture Characteristics on Microrel ief of Dry South-slope on the Loess Plateau
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    Abstract:

    On the loess plateau, fluctuating land surface forms microrelief . Using the difference of soil moisture content on microrelief to improve the survival rate of vegetation has become an important method in ecological restoration and construction. Using probe-type TDR, we measure the soil water content on microrelief and the corresponding original slope in Hejia valley, Wuqi County, Shaanxi Province. Results show that microrelief has a significant impact on soil moisture content . In terms of soil water on sunny slope, landform units may be ranked in the descendant order of collap se, gully bottom, platform, shallow gully bottom, original slope, and scarp . The variation coefficient of soil water (0 —20 cm surface soil) at gully bottom is the biggest (0. 405) and on platform, the smallest (0. 226) . The variation coefficient of soil water on shady original slope is less than that on microrelief of sunny slope. Therefore, in the vegetation restoration of the Loess Plateau, we should configure vegetation types in the vegetation restoration units determined by the traditional principles according to the soil water characteristic on microrelief .

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赵荟,朱清科,秦伟,刘中奇,王晶,邝高明.黄土高原干旱阳坡微地形土壤水分特征研究[J].水土保持通报英文版,2010,(3):64-68

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History
  • Received:December 25,2009
  • Revised:January 14,2010
  • Adopted:
  • Online: November 26,2014
  • Published: