利用灰色聚类法评价大同县地下水水质

通过白化权函数以及灰色聚类权的计算,得到聚类系数,从而对观测对象进行分类,构建了基于灰色聚类法的评价指标体系.以山西省大同县地下水水质监测资料为基础,依据国家地下水环境质量标准,评价了地下水水质,并分析了主要污染物的成因.结果表明,在所有监测点中,水质达到质量标准Ⅲ类水及更高要求的占46％,水质不达标占54％.研究结果比较客观地反映了当地地下水质量的类别,可为地下水的科学合理的开发利用提供依据.

Groundwater Quality Assessment in Datong County based on Grey Clustering Method

The clustering coefficient is obtained by calculating the whitening weight function and gray-clustering weight, thus the observation object is classified and the evaluation index system is established based on the grey clustering method. As the groundwater quality monitoring data of Datong county, Shanxi province and based on the quality standard for groundwater, groundwater quality is evaluated and the main pollutants are analysed. The results show that: In all of monitoring stations, groundwater quality that reach Ⅲ grade or better just account for 46%, while 54% do not. The results objectively reflect the categories of groundwater quality in Datong county, and could underlie the reasonable utilization and exploitation of groundwater.