系统聚类分析是数学分类中的一个主要部分,从五十年代开始就有人用于植物生态学分类等方面,由于这种方法计算工作量大,开始只能用一些简单的方法。随着计算机技术的广泛普及,聚类分析有了真正的活力,已在很多领域得到了应用。陈永宗同志在《我国水土流失的现状和亟须研究的几个问题》一文中认为,目前我国水土流失的科学研究工作首先应研究水土流失的分类和分区问题。因为影响水土流失的因素 System clustering analysis is a major part of mathematical classification. Since the 1950s, some people used for plant ecology classification and so on. Since this method is computationally intensive, only a few simple methods can be used at the beginning. With the popularization of computer technology, clustering analysis has real vitality and has been applied in many fields. Comrade Chen Yongzong pointed out in his article entitled “The Status Quo of Soil and Water Loss in Our Country and Several Issues in an Urgent Need Study,” that the scientific research on soil and water loss in our country should first study the classification and zoning of soil and water loss. Because of the factors that affect soil and water loss