基于灰色关联的太湖流域水质评价

Water quality evaluation in Taihu lake basin based on the grey relation

采用灰色关联分析法对太湖流域水质进行评价,详细介绍了灰色关联分析法应用于太湖流域湖州新塘港水环境质量进行评价的过程,该方法采用太湖流域浙江湖州新塘港水体断面的影响因子:溶解氧、高锰酸钾指数、氨氮的实测浓度组成参考数列,各因子标准浓度组成比较数列,计算参考数列与比较数列的关联度,按其大小确定综合水质级别。研究表明该地区水环境质量较差,并指出了治理太湖流域的建议性措施。

The paper used grey relation analysis method to evaluate water quality in Taihu lake basin and detailed the gray correlation analysis method used in water environment quality evaluation process of Huzhou Xintang port in Taihu lake basin.The method applied the impact factors of Huzhou Xintang port water cross-section in Taihu lake basin,such as DO,CODMn,NH3-N;these concentration are measured to form the reference sequence,each factor is the sequence of standard concentration,through calculating the correlation degree between the comparison of the sequence and the reference sequence and according to their sizes to determine the comprehensive water quality level.Research showed that the water environmental quality in this area was poorer and pointed out the constructive measures to govern Taihu lake basin.