GCA Between Sediment Yield and Its Impact Factors Under Simulated Rainfall Conditions

GUAN Xin-jian; ZHANG Wen-ge; LI Mian; SHENG Zhen-zhou

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GCA Between Sediment Yield and Its Impact Factors Under Simulated Rainfall Conditions

- GCA Between Sediment Yield and Its Impact Factors Under Simulated Rainfall Conditions
- Bulletin of Soiland Water Conservation Vol. 30, Issue 2, Pages: 168-171(2011)
- 作者机构：
  
  1. 郑州大学水利与环境学院
  2. 黄河水利科学研究院
- 作者简介：
- 基金信息：
- DOI：
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- Published：2011
- 稿件说明：
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GUAN Xin-jian, ZHANG Wen-ge, LI Mian, et al. GCA Between Sediment Yield and Its Impact Factors Under Simulated Rainfall Conditions[J]. Bulletin of Soiland Water Conservation, 2011, 30(2): 168-171.
DOI：

GUAN Xin-jian, ZHANG Wen-ge, LI Mian, et al. GCA Between Sediment Yield and Its Impact Factors Under Simulated Rainfall Conditions[J]. Bulletin of Soiland Water Conservation, 2011, 30(2): 168-171. DOI：

摘要

在20°和25°坡度上

选用4种雨强条件进行人工模拟降雨实验

对土壤水蚀动力过程进行了系统模拟

并运用灰色关联度的分析方法

研究了坡面侵蚀产沙量与其影响因子之间的关联程度。研究结果表明

在实验条件下

雨强与坡面降雨径流产沙量的关联度最大

水流功率次之

可以用雨强和水流功率来描述坡面径流产沙量

并建立了坡面径流产沙量与雨强和水流功率的相关关系式。

Abstract

The hydrodynamic process of soil water erosion was systemically simulated in the study by artificial precipitation experiments with treatments of two slopes(20° and 25°) and four rainfall intensities.The relationship between sediment yield and its impact factors was also studied using gray correlation analysis.The results show that rainfall intensity had the highest correlation coefficient with surface erosion sediment yield.Stream power was the factor with the second highest coefficient.Surface erosion sediment yield was therefore described by rainfall intensity and stream power with established regression equation.

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