Soil detachment and transport under the combined action of rainfall and runoff energy on shallow overland flow

doi:10.1007/s11629-016-3938-y

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2017 > Vol14 No.7

	Soil detachment and transport under the combined action of rainfall and runoff energy on shallow overland flow
	LI Guang-lu; ZHENG Teng-hui; FU Yu; LI Bai-qiao; ZHANG Teng
刊名	Journal of Mountain Science
	2017-07
卷号	14 期号:7 页码:1373-1383
关键词	Shallow Overland Flow Rainfall Energy Runoff Energy Sediment Detachment Disturbance Coefficient
ISSN号	1672-6316
DOI	10.1007/s11629-016-3938-y
通讯作者	LI Guang-lu
文献子类	期刊论文
英文摘要	Rainfall and runoff energy results in soil erosion. This paper presents new the concepts of rainfall and runoff energyand analyzes the relationship ofrainfall energy and runoff energy with sediment transportbased on the conversion theory of kinetic and potential energy using artificial rainfall and mechanical calculation. The results show that the ratio of sediment detachment in sloping fallow overland flow increases with the slope gradient, rainfall energy and runoff energy, while the sediment detachment ratio under raindrop impact are significantly higher than those under no raindrop impact. The sediment concentration increases with the slope gradient and rainfall energy; when the slope gradient and rainfall energy are constant, the sediment concentration decreases as the runoff energy increases. Rainfall disturbance coefficients have a logarithmic correlation with the rate of rainfall energy and runoff energy. On the same slope gradient, when the rainfall energy is constant, the disturbance coefficient decreases as the runoff energy increases, while when the runoff energy is constant, the disturbance coefficient increases as the rainfall energy increases. Rainfall energy results in sediment detachment, and runoff energy is the transportation for erosion sediment. This showed thatrainfall energy and runoff energy are important in the sediment detachment and transportation of shallow overland flow.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18930]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.7
推荐引用方式 GB/T 7714	LI Guang-lu,ZHENG Teng-hui,FU Yu,et al. Soil detachment and transport under the combined action of rainfall and runoff energy on shallow overland flow[J]. Journal of Mountain Science,2017,14(7):1373-1383.
APA	LI Guang-lu,ZHENG Teng-hui,FU Yu,LI Bai-qiao,&ZHANG Teng.(2017).Soil detachment and transport under the combined action of rainfall and runoff energy on shallow overland flow.Journal of Mountain Science,14(7),1373-1383.
MLA	LI Guang-lu,et al."Soil detachment and transport under the combined action of rainfall and runoff energy on shallow overland flow".Journal of Mountain Science 14.7(2017):1373-1383.