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Experimental research on the influence of two cultivation practices on rainfall runoff- and
Pei Xu1,2; Yukuan Wang1; Bin Fu1
Corresponding AuthorPei Xu
2008
Source PublicationActa Geochimica
ISSN2096-0956
Volume27Issue:4Pages:370-376
Abstract

Rainfall simulations have been conducted to study the soil erosion process of purple soil in two cultivation practices—contour cultivation and downslope cultivation. Results showed that under the two cultivation practices, the surface runoff can be described by the logarithmic function formula. In the initial period of rainfall, the amount of runoff increased with the rainfall duration and 20 minutes later it became relatively constant. The changing process of soil erosion rate may be described by the logarithmic function formula. The erosion rate increased with the rainfall duration and 20 minutes later it also became constant. Under downslope cultivation condition, the soil erosion rate increased more significantly than that under contour cultivation condition in the case of gentle rainfall intensity, and there is no obvious difference in erosion rate for downslope cultivation and contour cultivation practices. However, with increasing rainfall intensity the soil erosion rate under the downslope cultivation condition could be more than 30 times that under the contour cultivation condition. But this kind of difference would be reduced to some extent in the case of heavy rain.

KeywordRainfall Simulation Contour Cultivation And Downslope Cultivation Runoff And Sediment Generation Soil Erosion Rate
DOI10.1007/s11631-008-0370-1
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18911
Collection成都山地所知识仓储(2009年以前)
山区发展研究中心
Affiliation1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences,Chengdu 610041,China
2.Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Pei Xu,Yukuan Wang,Bin Fu. Experimental research on the influence of two cultivation practices on rainfall runoff- and[J]. Acta Geochimica,2008,27(4):370-376.
APA Pei Xu,Yukuan Wang,&Bin Fu.(2008).Experimental research on the influence of two cultivation practices on rainfall runoff- and.Acta Geochimica,27(4),370-376.
MLA Pei Xu,et al."Experimental research on the influence of two cultivation practices on rainfall runoff- and".Acta Geochimica 27.4(2008):370-376.
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