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[1]TANG Chong-jun,ZHENG Hai-jin,XIE Song-hua.Effects of Different Anti-erodibility Parameters on Soil Erosion Based on Grey Correlation Degree Analysis[J].Research of Soil and Water Conservation,2012,19(02):1-6.

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Effects of Different Anti-erodibility Parameters on Soil Erosion Based on Grey Correlation Degree Analysis

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 02 Page number: 1-6 Column: Public date: 2012-04-20

Title:: Effects of Different Anti-erodibility Parameters on Soil Erosion Based on Grey Correlation Degree Analysis

Author(s):: TANG Chong-jun¹, ZHENG Hai-jin^1,2, XIE Song-hua^1,3; 1. Jiangxi Institute of Soil and Water Conservation, Nanchang 330029, China;
2. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;
3. College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, China

Keywords:: grey correlation; soil anti-erodibility; soil and water conservation; soil erosion modulus

CLC:: S157.1

DOI:: -

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 E_MWD.E_MWD 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.

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