改进的灰色关联度分析法在饮用地下水水质评价中的应用

Application of Improved Gray Correlation Analysis Method to the Evaluation of Drinking Groundwater Quality

传统的灰色关联度分析方法没有考虑质量标准的区间形式,分辩系数ρ的取值以及关联度的权重而使评价结果存在偏差。改进的灰色关联度分析法,不仅计算简便,而且具有准确性和客观性的特点。以焦作市地下水为例,将改进的灰色关联度分析法应用于饮用地下水水质评价中,得到了良好的评价效果。

Because on the area coverage of quality standards, the size of exculpating coefficient ρ and the weight of correlation degree have not considered in traditional gray correlation analysis method, which leads to the evaluation result＇s bias. The improved gray correlation analysis method has merit not only in simple and convenient calculation, but in veracity and objectivity of evaluation result. As an example, the author has applied the method to the quality evaluation of drinking groundwater of Jiaozuo City, which has got a good evaluation result.