聚类分析在太湖地区水稻土物质分类上的应用

THE APPLICATION OF CLUSTER ANALYSIS ON THE MATERIAL CLASSIFICATION FOR PADDY SOILS IN TAI HU AREA

摘要:

近十余年来,数理统计中的多元分析发展很快,并在科学技术的各个领域广泛应用.土壤数值分类,就是多元分析引进土壤分类学的结果.土壤物质分类,可用数值分类为其表达形式.聚类分析(Cluster analysis)是研究“物以类聚”的数学方法.它属于多元分析的重要分支.数学研究者对聚类分析作过比较详尽的介绍.

Abstract:

As far as classification of paddy soils in Tai Hu area is c415oneerned,the character difference between soil individuals i and l

is somewhat better than their Euclidean distance.The mean squared distance between soil classes G_r and G_k

is better than their minimum and maximum distance.