<正>本文应用多元统计分析中的主成分分析与有序样品聚类分析方法探讨了生态林型学地体网格图的数值化途径,使定性划分立地条件类型的比较生态学方法立足于定量分类的基础上。该方法在紫金山南坡森林立地分类中应用效果良好。本文对该方法的基本原理、数据处理和计算机程序作了详细介绍。

Using principal component analysis (PCA) and cluster analysis of sequence sample (CASS), the approach to quantatify the site grid system of ecological typology which is well known in Soviet Union and China has been discussed. The theory, data processing and computer programme of this approach has also been introduced in details. Through applying this approach in southern Purple Mountain, a good example has been given.