A study on the species diversity in Castanopsis eyrei community in Gutianshan National Nature Reserve of Zhejiang Province
古田山国家级自然保护区甜槠群落物种多样性研究

The floristic composition and the species diversity of the Castanopsis eyrei community in Gutianshan National Nature Reserve of Zhejiang Province we re analyzed.The results show that there are 133 species (including varieties)of 86 genera and 49 families in total,including 6 species of 5 genera and 4 families in Peridophyte,2 species of 2 genera and 2 families in Gymnospermae and 125 spec ies of 79 genera and 43 families in Angiospermae.The floristic elements are com plex,and the total rate of tropical distribution is very high.The community has a high diversity of family,genus and species,has a great variety of plants whose composition is complex.In the vertical structure of community,the species diver sity decreases from shrub,tree to herb layer.The species richness and species di versity index of the tree layer and shrub layer are obviously bigger than those of the herb layer.