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[1]ZHAO Hai-bin,CAO Jing-jing,YAO Wen-yi,et al.Experimental Study on Process of Sediment Transport and Overland Flow on the Loess Slope[J].Research of Soil and Water Conservation,2014,21(01):90-94.

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Experimental Study on Process of Sediment Transport and Overland Flow on the Loess Slope

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 01 Page number: 90-94 Column: Public date: 2014-02-28

Title:: Experimental Study on Process of Sediment Transport and Overland Flow on the Loess Slope

Author(s):: ZHAO Hai-bin^1,2, CAO Jing-jing^1,2, YAO Wen-yi³, SHEN Zhen-zhou³; 1. Yellow River Conservancy Technical Institute, Kaifeng, He’nan 475003, China;
2. He’nan Higher Education Engineering Research Center of Water Conservancy for Small Watershed, Kaifeng, He’nan 475003, China;
3. Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China

Keywords:: loess slop; overland flow; runoff scouring; erosion equilibrium; process of sediment transport

CLC:: S157.1

DOI:: -

Abstract:: In order to establish mathematical model for assessing and predicting the development trend of soil erosion, based on the theory of sediment movement, the processes of sediment transport was studied by the scouring experiment on loess slope, and then the theoretical formula of sediment transport was derived. The results show that there is the same trend between average velocity and proportion of sediment yield with scouring time at different combinations of discharge and slope. The slope has an opposite influence on runoff velocity and sediment production in different durations. The rule of sediment transport is restricted to the interaction of flow and slope. The slope becomes steeper; the movement of erosion equilibrium comes much earlier. The formula of sediment transport is verified by experimental date, and then correlation coefficient is 0.799 3.

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