盐湖水化学类型的判别分析研究

Methods of Discriminant Analysis Classification of Hydrochemical Types of Salt Lakes

应用判别分析分类技术研究了盐湖水化学类型。结果表明,用统计分析方法筛选出的变量(X1～X8)对区分盐湖水化学类型有显著作用。考虑这些变量,依据判别分析分类技术建立了盐湖水化学类型的数学模型。其判别函数可以成功地对盐湖样品进行水化学类型的判别或预测。

Hydrochemical types of salt lakes by methods of discriminant analysis classification,stepwise diseriminant analysis and distance discriminant analysis,are studied in this paper. The results show that the variables selected by the statistical methods play an important part in distinguishing hydrochemical types of salt lakes. A mathematical model,in which the influences of the multi-facters (X_1-X_8) were considered,has been proposed based on the method of discriminant analysis classification. The discriminant functions of hydrochemical types were established successfully. The function of judgement model are very useful to classify and predict the hydrochemical types of salt lakes.