基于熵权—TOPSIS数学模型的松花江流域地表水水质评价研究

Research on Surface Water Quality Evaluation of Songhua River Basin Based on Entropy Weight-TOPSIS Mathematical Model

文章参考《地表水环境质量标准(GB3838-2020)》确定了6项地表水水质评价指标,并选取国家地表水水质自动监测实时数据发布系统所发布的黑龙江省松花江流域14个断面的实时数据。采用熵权法确定各评价指标的客观权重之后,基于TOPSIS模型的数学原理对黑龙江省松花江流域的14个断面的水质情况进行科学评价。利用Matlab运算得到的结果表明:地表水质量由高到低排序依次为汤旺河口内、加格达奇上、海浪、友好、同江、佳木斯上、嘉荫、大顶子山、摆渡镇、佳木斯下、朱顺屯、虎头上、三道、阿什河内口。

The article refers to the "Surface Water Environmental Quality Standard(GB3838-2020)" to determine 6 surface water quality evaluation indicators,and selects the real-time data of 14 sections in the Songhua River Basin of Heilongjiang Province released by the National Surface Water Quality Automatic Monitoring Real-time Data Release System. After adopting the entropy method to determine the objective weight of each evaluation index, based on the mathematical principles of the TOPSIS model, the water quality of 14 sections in the Songhua River Basin in Heilongjiang Province was scientifically evaluated. The results obtained by Matlab calculations show that the surface water quality in descending order is Tangwang River Mouth, Jiagedaqi Upper, Hailang, Youhao,Tongjiang, Jiamusi Upper, Jiayin, Dadingzishan, Baidu Town, Jiamusixia, Zhushuntun, Hutoushang, Sandao, Ashe River mouth.