Evaluation of Water Environment Quality in River Networks Based on Entropy Weight Cloud Model Theory
Aiming at the deficiency of current evaluation methods of water environment quality in river network,tak-ing the Yaozhuang River network in Jiashan County,Zhejiang Province as an example.this study chose DO,NH3-N,TN,TP,and COD as evaluation indicators.The Yaozhuang River network was divided into four polder areas,and 18 water quality monitoring sections were selected for on-site sampling and testing.The cloud model theory was integrated into entropy weight method to evaluate the water environment quality of different monitoring sections.The results show that the DO and NH3-N have weights of 0.344 and 0.201,respectively,indicating that they are the primary factors influ-encing the water environment quality assessment of the Yaozhuang River network;The half of the measurement points within Yaozhuang Weiqu are categorized as Class Ⅳ water,underscoring the urgent need for improvement of the water environment quality.This research can provide reference for water environment quality assessment of the southern plain river network.
entropy weightcloud modelplain river networkwater environment quality assessment
万方数据
维普
