水土保持研究2012，Vol.19Issue(2)：1-6,6.
不同土壤抗蚀性指标对侵蚀泥沙影响的灰色关联度分析
Effects of Different Anti-erodibility Parameters on Soil Erosion Based on Grey Correlation Degree Analysis
摘要
Abstract
There are many parameters which can reflect soil anti-erodibility,such as soil particle dispersivity and stability of soil water-stable aggregates.To analyze the effects of different anti-erodibility parameters on soil erosion modulus,grey correlation analysis was used to study the anti-erodibility of red soil in 15 slope runoff plots with typical soil and water conservation measurements in Jiangxi Eco-science Park of Soil and Water Conservation.The results indicated that in the 10 anti-erodibility parameters,the first 3 factors affecting soil erosion modulus was soil agglomeration,soil erodibility index,and soil erosion rate.Soil agglomeration had the greatest effect on soil erosion,with the equal weighted grey correlation value 0.744.The descending rank of the last 3 factors affecting sediment yield is WSA,MWDC,and EMWD.EMWD had the smallest effect on soil erosion with the equal weighted grey correlation value 0.594.The effects of soil particle dispersivity on sediment yield is better than that of stability of soil water-stable aggregates,their average grey correlation values were 0.705 and 0.621,respectively.This study is helpful to provide information for the order of different factors′ effects on soil erosion modulus and for further study in the future.关键词
灰色关联/土壤抗蚀性/水土保持/土壤侵蚀模数Key words
grey correlation/soil anti-erodibility/soil and water conservation/soil erosion modulus分类
农业科技引用本文复制引用
汤崇军,郑海金,谢颂华..不同土壤抗蚀性指标对侵蚀泥沙影响的灰色关联度分析[J].水土保持研究,2012,19(2):1-6,6.基金项目
水利公益性行业科研专项经费项目 （）
