安徽农业大学学报2012，Vol.39Issue(5)：765-769,5.
叶山次生落叶阔叶林主要树种空间结构特征
Spatial structure characteristics of main tree species in secondary deciduous broad-leaved forest in Yeshan
摘要
Abstract
Based on the investigation of typical plots of the natural secondary deciduous broadleaved mixed forest in Yeshan Forest-farm of Tongling city, the spatial structure features of this forest type were analyzed by using three spatial structure parameters (uniform angle, mingling degree and neighborhood comparison index). The results showed that there were 19 tree species in tree layer, of which Quercus acutissima was the dominant species of this forest type, and Platycarya strobilacea, Liquidambar formosana, Sassafras tzumus and so on were main associated tree species; the mean value of uniform angle index, mingling degree and neighborhood comparison of the stand in forest type were 0.556, 0.525 and 0.497, respectively. The pattern of tree spatial distribution of the stand was the cluster. The mingling degree of tree species of the stand was moderate mixed. Quercus acutissima, Platycarya strobilacea, Liquidambar formosana and Sassafras tzumus were the mean state in growing in the tree's size differentiation degree. The tree's size differentiation of this forest type was small. This forest type is still in the unstable stage, namely the transition stage from the deciduous broadleaved forest to the evergreen and deciduous broadleaved mixed forest.关键词
次生落叶阔叶林/空间结构/角尺度/混交度/大小比数Key words
secondary deciduous broad-leaved forest/ spatial structure/ uniform angle index/ mingling degree/ neighborhood comparison分类
农业科技引用本文复制引用
樊丙玉,郝耀锋,吴开华,黄庆丰..叶山次生落叶阔叶林主要树种空间结构特征[J].安徽农业大学学报,2012,39(5):765-769,5.基金项目
国家自然科学基金项目(31070569)资助. （31070569）
