Quantitative Evaluation Model Study on Ecological Effect of Soil and Water Conservation based on Combination Weighting
GUO Yan-na;Huludao Municipal Water and Soil Conservation Office;
The soil and water ecological effect model is of great significance for evaluating the rationality of soil and water conservation measures and establishing the control system of ecological effect. Taking the Daling River as an example,this paper was to think over the impact of soil erosion,surface runoff,vegetation coverage ratio and atmospheric environment on the ecological effects of soil and water conservation effects,and established a project evaluation index system. Afterwards,weighting analyses and calculation were conducted with the combination weighting method,introducing the ecological response indexes to exhibit the degree improved due to the research objects,and the overall response trend of the comprehensive evaluation index. The results show that the combination weighting method can more accurately characterize the weight of each index,and the response time of soil and water conservation and water transfer is short,which is beneficial to improve the ecological environment.
【CateGory Index】： S157