聚类分析是多元分析方法的一种,它通过样本各变量间一系列数学处理,建立聚类谱系,直观清晰地反映了样本之间的亲疏序列,科学地显示出样本的多因素综合特征,据以合理地进行分类.本文就山东省山地丘陵区土壤样品硼、锰、锌、铜、铁5种微量元素有效含量分析结果及有关资料,参照《山东省土壤分类暂行条例》对棕壤、褐土、潮土、盐土和砂 Clustering analysis is a kind of multivariate analysis. Through a series of mathematical processing among the variables in the sample, the clustering pedigree is established, which directly and clearly reflects the sequence of the samples, scientifically shows the multi-factor comprehensive characteristics of the sample, According to the reasonable classification of the soil samples in mountainous areas of Shandong Province, soil samples of boron, manganese, zinc, copper, iron and other five kinds of trace elements of the effective content analysis and related data, with reference to “Shandong Provincial Soil Interim Regulations” on brown soil, Cinnamon, Chao soil, salt and sand