江苏海涂土壤粘土矿物的数值分类

根据江苏海涂土壤及其陆源物质粘土矿物的相对含量、结晶程度等四个性状的聚类分析,将江苏海涂土壤的成土母质分为三大陆源类型:黄河沉积类;长江沉积类和沂沭河沉积类。分类结果与土壤的地理位置有良好一致性。说明在测定数据正确、选用的性状和聚类统计量适当的情况下,对粘土矿物含量和性状进行聚类分析,可得到比较客观和正确的分类,是粘土矿物研究中可采用的分类方法。

NUMERICAL CLASSIFICATION OF CLAY MINERALSIN BEACH SOILS OF JIANGSU

By the main component and cluster analysis of the properties, the relative contents, crystallinity ete of clay minerals in beach soils and their parent materials, the parent materials of the soils were divided into three types, i.e., the deposits of Yellow River, Yanshu River and Yishu River. The results obtained well consisted with the geographical locations of the soil samples, which indicates that under the premises of correct analytic figures, proper selected properties and right grouping statistics, cluster analysis of the contents and characters of clay minerals is practicable for classification of clay minerals in soil.