【摘要】 鼎湖山地处热带与亚热带过渡区域,地形起伏较大,内环境异质性高,群落结构复杂。以根据海拔等地形因素,利用MRT(多元回归树)的方法,将鼎湖山季风常绿阔叶林20 hm2有典型代表性的森林群落监测样地划分为5种生境类型;通过比较各生境之间物种多样性的差异,讨论环境异质性与局域群落内物种分布的关系,为亚热带季风常绿阔叶林植物群落的构建及物种多样性维持机制的研究提供参考。更多还原

【Abstract】 Dinghushan(DHS) with diversified topographical details is a zone between the tropics and subtropics and highly harbors small-scale environmental heterogeneity,it has complexed community structure.Based on elevation,etc.orographic factor,typical representative forest community of monsoon evergreen broad leaved forest.Dinghushan plot(20 hm2) is divided into 5 kinds of habitat in monitoring plots using the MRT method.Through comparing the differences of species diversity among habitats,the relationship between environmental heterogeneity and species distribution within local community were discussed,which provided references for the study of community assembly of subtropical monsoon evergreen broad leaved forest and the maintaining mechanism of biodiversity.更多还原