In order to identify the river health status and explore the possible causes of river damage,the Xiangxi River,the first larg-est tributary of the dam head in the Three Gorges Reservoir,was taken as the research object.Considering the distribution characteris-tics of human activities and natural attributes in the basin,the Xiangxi River was divided into four evaluation river sections.Based on the hierarchical correlation index system,the fuzzy mathematics comprehensive evaluation method was used to study the health status of Xiangxi River.The results showed that when constructing the evaluation index system,priority should be given to the relevant indicators that maintained the ecological function of the river itself.The overall health status of Xiangxi River was very healthy,but the difference between the calculation indexes of the fuzzy mathematics comprehensive evaluation method reflected the heterogeneity of the evaluation results of different river sections.On the whole,this method could better evaluate the health level of rivers and identify key factors.
关键词
模糊数学综合评价法/指标体系/异质性/健康评价/香溪河
Key words
fuzzy mathematics comprehensive evaluation method/index system/heterogeneity/health evaluation/Xiangxi River
维普
万方数据