摘要
基于对 2 1个样地的群落调查 ,利用等级聚类分析方法对四面山常绿阔叶林群落进行数量分类 ,并讨论了常用的4种聚类策略。结果表明 :组平均是等级聚合分类的最佳策略 ;四面山常绿阔叶林群落可分为 4个群系类型。
Based on a survey at 21 community sites, a numerical classification was made of the ever-green broad-leaved forest communities in Simian Mountain of Chongqing with the methods of hierarchical and agglomerative analyses. The results indicate that the ever-green broad-leaved forest communities in Simian Mountains may be grouped into 4 formations. Of the four commonly-used clustering strategies discussed in the paper, the group-average strategy appeared to be optimum for hierarchical and agglomerative clustering.
出处
《西南农业大学学报(自然科学版)》
CSCD
北大核心
2001年第3期199-201,207,共4页
Journal of Southwest Agricultural University
基金
国家自然科学基金资助项目! (39570 1 30 )
关键词
四面山
植物群落
等级聚合分类
组平均策略
重庆
plant community
hierarchical and agglomerative clustering
group-average strategy
Simian Mountain