东北地区兽类分布格局的统计分析

Statistical Analysis of Distribution Pattern of Mammals in Northeast China

应用多元统计分析中的因子分析和聚类分析方法,使用Spss统计软件系统对东北地区94个市县的兽类分布格局进行了统计分析。根据兽类在各个特定分布区的分布特点,并结合自然地理条件以及东北地区兽类动物地理分布格局,将东北地区兽类动物地理区划划分为5个区。结果表明:兽类的分布格局与食物组成、栖息地类型密切相关,区域环境一致性较高的地区,其兽类区系成分相似性亦较高,聚类结果一致性较强。

A study was conducted to analyse the distribution pattern of mammals in 94 cities and towns of northeast China using SPSS software by applying factor analysis and cluster analysis. The distribution areas were divided into five districts according to the geographical distribution pattern of mammals, the distribution characteristics of various animals in particular areas and the natural and geographical conditions. Results show that the distribution pattern of mammals is closely related to food composition and habitat type. A higher comparability of flora dements was found in the areas with a higher consistency of regional environment. Clustering result shows a high degree of consistency.