Abstract

This paper adopts the fuzzy comprehensive evaluation method and takes Wangjiaba Reservoir as an example to evaluate the water quality of the reservoir. Our evaluation results show that the main causes of serious water pollution in reservoirs are agricultural non-point source pollution, breeding pollution, domestic sewage discharge, etc. We use the fuzzy comprehensive evaluation method to express the water quality classification boundary through the degree of membership, which can better reflect the fuzzy relationship and correlation between the water quality classifications. This method can also reflect the state of water quality under the joint action of various evaluation factors, and the evaluation results are closer to objective facts. In conclusion, this method can be applied in the water quality evaluation of Wangjiaba Reservoir.

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