【摘要】 对贵州省重点保护植物的地理分布进行聚类分析,将各种重点保护植物在贵州9个地区分布的有或无作为二元性状,选用Jaccard系数表征各地区间物种组成的相似性,用非加权组对平均法进行聚类。结果表明:重点保护植物分布在省内相邻地区联系紧密;南北、东西地区重点保护植物分布差异明显;重点保护植物分布与省外地区有南北交错渗透现象。更多还原

【Abstract】 The "yes" or "no"(1 or 0) of distribution of protective plants in Guizhou province was regarded as two-state character.Relative coefficient of Jaccard was taken for the similar degree of every pair-region.Cluster analysis on geographical distribution of protective plants was taken by unweighted pair-group average method.The results show as follow: There are close connections about distribution of protective plants between neighborhoods within Guizhou province.The distributions of protective plants show distinct difference over north and south of Guizhou province,as well as east and west of Guizhou province.Protective plants respectively pervade Guizhou province from north and south.更多还原