在Matlab中实现熵权TOPSIS法对地下水综合评价

Application of entropy weighted TOPSIS method in groundwater comprehensive evaluation implemented in Matlab

在Matlab中编程实现基于熵权的TOPSIS法综合评价模型。利用此模型对福建省晋江市浅层地下水环境质量进行综合评价,引入《地下水质量标准》中的五类标准值作为虚拟水样监测点来划分水质评价等级,并对水质质量进行优劣排序,评价等级结果与基于因子分析法评价结果基本一致,表明该法具有一定的可行性,且计算简便,代码易于移植复用,也可用于其他方面评价。

Entropy-weight TOPSIS method was implemented in Matlab software. The environmental quality of shallow groundwater in Jinjiang city, Fujian province was evaluated by this method. The five standard values in quality standard for groundwater were used to divide the grade of water quality as virtual water monitoring points. And then the water environmental quality was ranked in this paper. Compared with the factor analysis method, the evaluation results on the two approaches were basically the same. The results showed that entropy weighted TOPSIS method had certain feasibility and the calculation was simple. What＇s more, the programme codes were easy to be transplanted. And this method can be used for other aspects of evaluation.