最小生成树MST的系统学和生物地理学意义  

THE SYSTEMATIC AND BIOGEOGRAPHIC SIGNIFICANEC OFMINIMAL SPANNING TREE

作　　者：张明理[1] 

机构地区：[1]陕西省,中国科学院西北植物研究所

出　　处：《西北植物学报》1995年第2期154-160,共7页Acta Botanica Boreali-Occidentalia Sinica

基　　金：国家自然科学基金和陕西省自然科学基金资助项目

摘　　要：概述了最小生成树和泛生物地理学中轨迹分析的概念。采纳Ｐａｇｅ关于轨迹等同于最小生成树的观点。在此基础上分析和阐述了最小生成树四个方面的系统学和生物地理学意义：１作为分类群或分布区一种相似性关系的直观表达；２作为有别于系统聚类的一种数值分类途径；３其网络结构有效地表达了有机体的种系发生关系；４轨迹等同于最小生成树，因而是定量生物地理学研究的有效手段。作为一个应用，试构建我国１０个主要山体间种子植物区系的关系。Minimal spanning tree and the concept of track analysis of Croizat’s Panbilgeography arebriefly introducted. Page’ s views that track is equated with minimal spanning tree are accepted bythe author, The systematic and biogeographic significance of minimal spanning tree is analyzedand described in four aspects: 1. It can be treated as an illustration of taxa or areas similarity;2.Itis a numerical classification approach which is different from the hierarchic clustering; 3. Its net-work could clearly show the phylogenetic relationship of organism; 4. It is a suitable method forqauntitative biogeography. As an application of minimal spanning tree , the floristic affinitiesamong the ten mountains in China are analyzed by using the genera data of seed plants。

关 键 词：最小生成树 系统学 生物地理学 种子植物 

分 类 号：Q15[生物学—普通生物学] Q949.408