Change in surface micro-relief during the course of sheet erosion and inter-rill erosion
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    Abstract:

    A study was carried out using the method of indoor simulated rainfall combined with geostatistical analysis to investigate characteristics of the change in surface micro-relief under four different kinds of management during the course of sheet erosion and inter-rill erosion. Results show that under the effect of rainfall, regardless of intensity, the surface micro-relieves of slopelands, regardless of management pattern, all demonstrated a certain extent of irregularity and inter-grade transfer in elevation in the process of sheet erosion and inter-rill erosion. GradeⅠ and GradeⅡ were dominated with moving-out, and only a little was transferred back into Grade Ⅰand GradeⅡ even after the inter-rill erosion phase. Little elevation of the surface micro-relief of Grade III moved out, but instead, most of the elevations of other grades moved into Grade Ⅲ, suggesting that in the regions between 0~0.01 m and 0.01~0.03 m deposition of silts occurs readily during the process of sheet erosion and inter-rill erosion.

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zhengzicheng. Change in surface micro-relief during the course of sheet erosion and inter-rill erosion[J]. Acta Pedologica Sinica,2011,48(5):931-937.

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History
  • Received:April 12,2010
  • Revised:October 25,2010
  • Adopted:November 01,2010
  • Online: June 13,2011
  • Published: