IMHE OpenIR  > 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
Alternative TitleSoil 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
Corresponding AuthorLI Guang-lu
2017-07
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:7Pages:1373-1383
Subtype期刊论文
AbstractRainfall 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.
Other AbstractRainfall 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.
KeywordShallow Overland Flow Rainfall Energy Runoff Energy Sediment Detachment Disturbance Coefficient
DOI10.1007/s11629-016-3938-y
Indexed BySCI
Language英语
CSCD IDCSCD:6023310
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18930
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.7
Recommended Citation
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.
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