Analysis and Evaluation of Conventional Water Quality Indicators and Zoobenthos Index Based on Grey Relational Analysis
In order to explore the relationship between conventional water quality indexes and zoobenthos index in Xuhui District,Shanghai,the water quality was comprehensively considered from the water environmental quality and the water ecological status.This paper selects eight monitoring sections of typical rivers to evaluate their water qualities by using the comprehensive indexes of water quality,zoobenthos index and grey relational analysis.The results of the grey relational analysis show that the dissolved oxygen and fecal coliforms have the greatest influence on the zoobenthos index among the conventional water quality indicators.The best sections of water quality are Yishan road and bridge in Shang'aotang and Lingyun road and bridge in Beichaogang,based on the comprehensive evaluation of conventional water quality indicators and zoobenthos index.According to the research results,some countermeasures and suggestions are put forward for the restoration of river water ecology in Xuhui District,Shanghai.
grey relational analysistypical river sectionwater quality indexzoobenthos index
国家科技期刊平台
NSTL
万方数据
