摘要
采用无样地调查法中的中点象限法取样,用重要值和相异系数排队,等级聚合树状图解等数量散分类方法,对四川省天台山常缘阔叶林进行数值分类和排序,结果表明,它能比较客观地反映出生境的变化和群落逐渐过渡到顶极群落的格局,与以显著度和ISsp值作基础定量数据所作的分类和排序比较,能更接近实际。
The numerical classification and ordination have been made of the evergreen broad-leaved forests on the Taintai Mountains of Sichuan Province by means of the point-centered quarter sampling of the plotless sample method as well as the methods of the arrangement using the importance value and coefficient of difference, and hierarchical agglomerative dendrogram which are employed in numerical taxonomy. The results indicate that the methods can depict more objectively the changes of the habitat and the patterns of the gradual transition from the community to climax community. Compared with the classification and ordination using the prominence and ISsp value as the basic quantitative data, they are even closer to the actual conditions.
出处
《中南林学院学报》
CSCD
1992年第2期170-177,共8页
Journal of Central South Forestry University
关键词
常绿阔叶林
数值分类
排序
evergreen broad-leaved forest, numerical classification, ordination, coefficient of difference
