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| Design and verification of water erosion scale simulation experiment on slop |
| Li Shuqin1,2,Gao Jian'en1,Zhao Chunhong1,Shao Hui1,Liang Gaige1 |
| 1.Northwest Agricultural and Forestry University,Institute of Soil and Water Conservation,CAS and MWR,National Engineering Research Centre for Water Saving Irrigation at Yangling,712100,Yangling,Shaanxi;2.Ma'anshan Institute of Mining Research,243004,Ma'anshan,Anhui: China |
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Abstract This paper introduced the water erosion scale simulation experiment on the loess slop,further verifying experiments were conducted on the similarities of the runoff and erosion processes.Based on the theories of the small watershed simulation experiment,a design method and verification of water erosion simulation experiment were given.The results showed that: the undistorted sloping model was similar to the antetype in the rainfall,the flow rate processes,mean velocity,runoff depth,drag coefficient,sediment production and sediment transport and bed deformation under complying with the similarities of geometric,rainfall,flow,erosion production,sediment transport and bed deformation etc.,in despite of some difference of flow patterns in model and antitype experiment.So it can be applied as a tool in soil erosion control plan,optimizing conservation measures and utilizing water and soil resource efficiently.
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Received: 02 March 2009
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