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[1]HUO Yun-pei,ZHU Bing-bing.Analysis on the Benefits of Level Terrace on Soil and Water Conservation in Loess Hilly Areas[J].Research of Soil and Water Conservation,2013,20(05):24-28.

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Analysis on the Benefits of Level Terrace on Soil and Water Conservation in Loess Hilly Areas

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 05 Page number: 24-28 Column: Public date: 2013-10-28

Title:: Analysis on the Benefits of Level Terrace on Soil and Water Conservation in Loess Hilly Areas

Author(s):: HUO Yun-pei¹, ZHU Bing-bing²; 1. Department of Environment & Resources Management, Shaanxi Xueqian Normal University, Xi’an 710100, China;
2. College of Tourism and Environment, Shaanxi Normal University, Xi’an 710062, China

Keywords:: loess hilly areas; level terrace; soil and water conservation; ¹³⁷Cs tracing

CLC:: S157.3

DOI:: -

Abstract:: Level terrace is an effective way to prevent soil and water loss. A parcel of terrace and slope land in Wangmaogou watershed in Suide was chosen and soil samples were collected. The soil water moisture and ¹³⁷Cs contents were measured to study the benefits on soil and water conservation of level terrace. The results showed that the change of soil moisture of level terrace can be divided into 3 layers, changing drastically in 0—20 cm layer, changing actively in 20—30 cm layer and changing regulatively below 30 cm depth. The soil moisture content from each layer showed the inner which is the first ladder is a little higher than the middle, and the middle higher than the outer. The soil moisture content is slightly influenced by slope aspect. The water storage of terrace in 0—20 cm layer is 7.2% higher than slopeland and is 1.8 mm higher in 0—40 cm layer. The erosion degrees are extremely intensive erosion on slope land and intensive erosion on terrace. The average soil and water conservation benefit of terrace is 53%. The suggestions of improving the design standard of terrace and maintaining carefully for farm surface and ridge were put out to realize the long-term benefits for soil and water conservation of terrace.

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