浙江天台山甜槠群落物种多样性

甜槠 (Ｃａｓｔａｎｏｐｓｉｓｅｙｒｅｉ)林为中亚热带典型的地带性植被 ,是浙江省最常见的常绿阔叶林类型。在浙江省天台山石梁景区内分布着一片以甜槠为单优势的群落 ,作者曾对该群落的特征作了初步的研究6] 。本文主要对甜槠群落的区系组成、物种多样性、种多度分布、科 属 种组成多样性等进行了测定和分析 ,为甜槠群落的多样性保护与持续利用提供科学依据。1　研究地自然概况与研究方法1.1　自然概况天台山位于浙江省东部 ,有关其自然概况已作多次报道6] ,这里不再重复。1.2　样地的设置在甜槠群落中 ,根据不同海拔高度和坡向设置1…

Species Diversity of Castanopsis eyrei Community at the Tiantai Mountain of Zhejiang Province.

Flora composition and species diversity features of Castanopsis eyrei community at Tiantai Mountain of Zhejiang Province were analyzed.According to the statistics from 10 sample plots,there are 122 species(including varieties) of 93 genus belonging to 48 families of vascular plants.In terms of geographical composition of seed plant genus,most of them are distributed in the temperate zone.The species diversity of shrub layer is the highest,the tree layer the second ,and the herb layer the lowest in the vertical structure of the community.In terms of the specific-abundance distribution,the tree layer,the shrub layer and the herb layer plants all conform to the logarithmic series distribution,which shows that there are more open species than the enriched species,and that the community evenness is relatively low.The diversity order of the family-genus-species in the community is:genus-species diversity>family-genus diversity>family-species diversity.