黄土丘陵区小流域淤地坝系安全评价体系研究

Study on safety evaluation system of warp land dam system in small watershed in loess hilly region

黄土丘陵区水土流失严重,淤地坝系是治理水土流失最重要的水土保持工程措施。研究分析了影响小流域坝系安全的主要因素,建立了小流域淤地坝系安全评价体系,并以黄土丘陵区典型小流域王茂沟为例,对各项评价指标打分赋值。通过Topsis法对王茂沟安全体系进行评价,结果表明,王茂沟小流域大部分淤地坝处于接近安全状态,研究成果以期为黄土高原淤地坝系安全运行提供参考。

Soil and water loss is serious in loess hilly region.The dam system is the most important engineering measure to control soil and water loss.The safety evaluation system of warp land dam system is established by studying the main factors affecting the safety of dam system in small watershed.Taking the example of a typical small Wangmaogou watershed in the Loess Hilly Region,and all evaluation indicators are assigned.The evaluation of the safety system of Wangmaogou watershed through the Topsis method shows that most of warp land dams are in almost safe state.The research results are expected to provide a reference for the safe operation of check dam system in the Loess Plateau.