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机构地区:[1]西华师范大学国土资源学院,四川南充637002 [2]绵阳师范学院,四川绵阳621000
出 处:《绵阳师范学院学报》2006年第5期62-65,共4页Journal of Mianyang Teachers' College
基 金:西华师范大学科研启动基金资助(04B037);国家自然科学基金资助项目(39770134)
摘 要:采用Raunk iner生活型分类系统,对九顶山东坡28个样地的生活型进行统计,编制出生活型谱。然后尝试性地采用了SPSS软件的分层聚类方法对28个样地的生活型谱进行聚类分析,当聚类数n=5时,即将28个样地聚为5大类时,与该区原有的群落分类文献吻合性最好。从而说明SPSS软件的分层聚类方法在群落分类上的适用性,在理论和实践上进一步丰富和完善了群落分类的方法。The life -form of the plant communities in the 28 plots on the east slope of Jiuding Mountain has been studied and the life -form spectrums have been established with the system of Raunkiner. Then, by employing the hierarchical clustering method of the SPSS into the clustering analysis of the life - form spectrums in the 28 plots, the result is obtained that when the plant communities in the 28 plots on the east slope of Jiuding Mountain are classified into 5 kinds, the result best agrees with the known community classification literature of that region, thus proves the applicability of the hierarchical clustering method of the SPSS to the classification of plant communities, and consequently enriches and perfects both in theory and practice the methods for the classification of plant communities.
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