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按照《中华人民共和国水土保持法》及配套法律、法规、规定以及国家对水土保持、环境保护的总体要求,查阅工程监理报告、监测报告、现场抽样调查以及与监测部门、当地水利部门座谈等途径,对该工程水土保持效果进行了评估。结果表明:在水土流失治理方面,治理面积1 547.9hm2,项目区平均扰动土地治理率为99.60%,完成水土流失治理面积594.0hm2,平均水土流失总治理度为98.90%,土壤流失控制比为1.09～1.28,拦渣率为99.68%。生态环境和土地生产力恢复方面,植被恢复系数达到95.90%,成活率和保存率均达95%以上,植被盖度明显增加,公路建设中实现了物种多样性,植被的自然恢复达到预期的目标。公众满意程度好。
In accordance with the Law of Soil and Water Conservation of the People’s Republic of China, supporting laws, rules and regulations as well as the state’s general requirements for water and soil conservation and environmental protection, consult the project supervision reports, monitoring reports, on-site sampling surveys and discussions with monitoring departments and local water conservancy departments , Evaluated the effect of soil and water conservation of this project. The results showed that in the area of soil erosion control, the area under treatment was 1 547.9 hm 2, the average land disturbance rate in the project area was 99.60%, the soil erosion control area was 594.0 hm 2, the average soil erosion control was 98.90% and the soil erosion control ratio was 1.09 ~ 1.28, slag rate was 99.68%. In terms of ecological environment and land productivity restoration, the vegetation restoration coefficient reached 95.90%, the survival rate and the preservation rate reached more than 95%, and the coverage of vegetation increased obviously. Species diversity was realized in road construction and the natural recovery of vegetation reached the expected goal. Public satisfaction is good.