【摘要】 本文使用三种有序聚类分析方法研究了秦皇岛地区晚更新世以来的孢粉及重矿组合,并对三种分带方法进行了比较分析。此外,叙述了几种二维聚类分析方法,用以分析表土数据。结果表明,几种方法都在环境分区中获得了满意的效果,但又各有特点。更多还原

【Abstract】 In this paper,we apply three methods of ordered clustering analysis to researching the assemblages of pollen and heavy-mineral since later Late Pleistocene in Qinhuangdao area,and give a synthetica and comparative analysis about the three methods for zonafion. In addition, several two dimensional clustering analysis methods are introduced to analysis the surface soil data, The results show that all these methods are effective on researching the enviromental regionalization,but each one has peculiarity.更多还原