系统聚类法在划分岩溶地下水化学类型中的应用

The application of systematic clustering method to the classification of chemical types of karst groundwater

基于前人的研究及咸宁岩溶地区地下水化学类型判别,知舒卡列夫分类法存在一些不足,提出了系统聚类分析法。文中对系统聚类法的4个过程(矩阵构造、相似程度表征、消除量纲差异和样本系统聚类)进行了详细讨论,编制了相应的程序,并将其应用于咸宁岩溶地区采集的水样,取阈值3.2时可分为10类,最后对每种水化学类型与舒卡列夫分类进行了对比分析,效果较好。

The previous methods for the discrimination of groundwater hydrochemical types in karst areas of Xianning,such as the Shu Kaliefu＇s classification,have some shortcomings. In view of such a situation,this paper proposes the systematic cluster analysis method. The four processes of the system clustering method,i.e.,matrix construction,similarity degree representation,elimination of dimensional difference and sample system clustering,were discussed in this paper. The corresponding programs were compiled for the systematic cluster method,and the groundwater from the karst area of Xianning was taken as an example. When the threshold is 3.2,the hydrochemical type can be divided into 10 categories. Finally,a comparative analysis of each classification was carried out with Shug Kalev classification,and it is proved that the systematic cluster analysis method is effective.