安徽休宁县森林植物群落物种多样性分析

分析了休宁县森林群落的类型、组成、结构和物种多样性，结果表明:休宁县的典型森林群 落为常绿阔叶林，但由于森林破坏，群落为成层现象和层片不甚明显；物种多样性指数(S、 D、H)是针阔混交林＞常绿阔叶林＞落叶常绿阔叶混交林＞落叶阔叶林，低海拔＞高海拔； 在同一类型不同层次中，灌木层＞乔木层＞草本层。

Analysis on the Forest Community Species Diversity in Xiuning County of An hui Province

The type, composition, structure and species diversity of the forest community i n Xiuning county were analyed. It was found that the forest community in the cou n ty is a classic one, the evergreen broadleaf forest. But the layer phenomenon an d blade of forest was not obvious becaues of deforest action. The species divers ity ind ex(H′) showed needle broadleaf mixed forest＞evergreen broadleaf forest＞decidu ous evergreen broadleaf mixed forest＞deciduous broadleaf forest, low altitude＞ high altitude. Within the same type, the species diversity inedx was shrub layer ＞tree layer＞herb layer.