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[1]LI Miao-miao,WANG Ke-qin,CHEN Zhi-zhong,et al.Storage of Water and Sediment Reduction Benefits of Reverse-slope Terrace under the Different Slopes[J].Research of Soil and Water Conservation,2011,18(06):100-104.

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Storage of Water and Sediment Reduction Benefits of Reverse-slope Terrace under the Different Slopes

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 06 Page number: 100-104 Column: Public date: 2011-12-20

Title:: Storage of Water and Sediment Reduction Benefits of Reverse-slope Terrace under the Different Slopes

Author(s):: LI Miao-miao¹, WANG Ke-qin¹, CHEN Zhi-zhong², KANG Long²; 1. College of Environmental Science and Engineering, Southwest Forestry University, Kunming 650224, China;
2. Water Conservancy Bureau of Kunming City, Kunming 650224, China

Keywords:: water and sediment reduction; reverse-slope terrace; slope land

CLC:: S157

DOI:: -

Abstract:: The runoff and sediment characteristics were observed and storage of water and sediment reduction benefits were studied on reverse-slope terrace on the different slopes under the natural rainfall conditions in Yizhe Watershed of Songhuaba reservoir in Kunming.The result shows that the rates of runoff reduction have reached to 75.98% and 74.55% on slope land of 5°and 15° in all, the rates of sediment reduction have reached to 85.91% and 80.52% on the reverse-slope terrace, runoff and sediment reduction have reached to 40.48% and 69.15% on the farmland of 25°. In comparison with the water use and sediment reduction under natural slope, it shows that the smaller the degree of slopes, the greater the ratio of the water use to sediment reduction under different slopes of reverse-slope terrace; otherwise, the greater the degree of slopes, the smaller the ratio of the water use to sediment reduction. It shows that reverse-slope terrace has evident effect on runoff and sediment interception when slope is smaller, and that the reverse-slope terrace has a direct effect on soil and water conservation.

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