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.
关键词
熵权/云模型/平原河网/水环境质量评价
Key words
entropy weight/cloud model/plain river network/water environment quality assessment
维普
万方数据