基于灰色关联理论的钱塘江河口段水质评价研究  

Study on Water Quality Assessment of Qian Tang River Based on Grey Correlation Theory

作　　者：沈陆娟[1] 周念[2] 蔡建平[1] SHEN Lu-juan;ZHOU Nian;CAI Jian-ping(Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China;Ningbo Dahongying University, Ningbo 315175, China)

机构地区：[1]浙江水利水电学院应用数学研究所,浙江杭州310018 [2]宁波大红鹰学院基础学院,浙江宁波315175

出　　处：《数学的实践与认识》2017年第21期165-171,共7页Mathematics in Practice and Theory

基　　金：浙江省水利厅科技项目(RC1405;RC1304)

摘　　要：基于钱塘江河口段水质污染的系统分析,建立了水质污染评价指标体系,利用灰色关联理论构建了水质污染评价数学模型,提出了5级-6区间指标归一化方法,使得超标水质的影响能得到真实反映.根据水质实测数据,对该河段水质状况做出了综合评价,提出了防治污染,改善水质状况的对策.Based on the analysis of water pollution in the estuary of Qian Tang River, the evaluation index system of water pollution is established. By using the grey relational analysis theory, the mathematical model of water quality pollution assessment is constructed. A piecewise linear normalization method with 5 stages and 6 intervals is proposed, which can reflect the effect of water quality exceeding pollution standards. Based on the measured data of water quality, the comprehensive evaluation of water quality of this river is made by using this model, and the countermeasures to prevent and control the pollution and improve the water quality are proposed.

关 键 词：灰色关联 水污染 评价指标体系 阈值矩阵 

分 类 号：N941.5[自然科学总论—系统科学] X824[环境科学与工程—环境工程]