Study on Soil Anti-shearing Intensity of Water Erosion in China

ZHANG Ai guo; LI Rui; YANG Qin ke

doi:11894/1005-829x.2001.21(3).5

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Study on Soil Anti-shearing Intensity of Water Erosion in China

- Study on Soil Anti-shearing Intensity of Water Erosion in China
- Bulletin of Soiland Water Conservation Vol. 20, Issue 3, Pages: 5-9(2001)
- 作者机构：
  
  中国科学院水利部水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：11894/1005-829x.2001.21(3).5
  CLC：
- Published：2001
- 稿件说明：
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ZHANG Ai guo, LI Rui, YANG Qin ke. Study on Soil Anti-shearing Intensity of Water Erosion in China[J]. Bulletin of Soiland Water Conservation, 2001, 20(3): 5-9.
DOI：

ZHANG Ai guo, LI Rui, YANG Qin ke. Study on Soil Anti-shearing Intensity of Water Erosion in China[J]. Bulletin of Soiland Water Conservation, 2001, 20(3): 5-9. DOI： 11894/1005-829x.2001.21(3).5.

摘要

利用野外测试数据、土壤样品的室内理化分析数据和参考文献数据，对水蚀区范围内水土流失过程中的土壤抗剪强度进行了初步研究，建立了中国水土流失土壤抗剪强度的回归模型，总结出水蚀区范围内水蚀过程中有关土壤抗剪强度的3条结论 :影响水土流失过程中土壤抗剪强度的主导因素是容重、粉 /黏、土壤含水量、土壤有机质含量 ;抗剪强度随土壤类型发生有规律的变化 ;抗剪强度在中国水蚀区范围内有较明显的空间分异规律（包括水平分异规律和垂直剖面构型规律）。

Abstract

Soil anti-shearing intensity in water erosion process of the whole country is preliminarily researched in the article by using the firsthand data obtained through field test

indoor analytic data of the physical and chemical propertiesof soil samples and reference data. The regression model of soil anti-shearing intensity is built. The dominate factors impacting on soil anti-shearing intensity in regional water erosion process are soil capacity

ratio of silt to clay

the water content and organic matter content. Soil antishearing intensity regularly changes keeping pace with the soil type

it has obvious space distribution rules in Chinese water erosion region

including horizontal and vertical distribution rules.

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