Health assessment of Xiangxi River based on fuzzy mathematics comprehensive evaluation method

doi:10.14088/j.cnki.issn0439-8114.2024.10.006

Abstract

Abstract: In order to identify the river health status and explore the possible causes of river damage, the Xiangxi River, the first largest tributary of the dam head in the Three Gorges Reservoir, was taken as the research object. Considering the distribution characteristics 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.

Key words: fuzzy mathematics comprehensive evaluation method, index system, heterogeneity, health evaluation, Xiangxi River

CLC Number:

X522

LU Shi-rong, TAN Zhao-xin, RAN Jin-dong, YE Yan, YANG Zi-yi. Health assessment of Xiangxi River based on fuzzy mathematics comprehensive evaluation method[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(10): 29-34.

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