浙江丽水生态示范区南方红豆杉群落的物种多样性

Species diversity of communities with Taxus chinensis var. mairei in Lishui ecological demonstrative area, Zhejiang province

南方红豆杉是我国一级保护植物,通过样方调查,应用物种丰富度、物种多样性指数和群落均匀度等指标,对分布在浙江丽水松阳和莲都山地的南方红豆杉群落结构组成和特征进行了研究.结果表明,南方红豆杉群落植物种类丰富、科属组成分散、区系成分复杂.分析其属的地理成分,热带分布的属多于温带性质的属.木本植物的物种丰富度和物种多样性指数明显大于草本植物.灌木层——乔木层——草本层的物种多样性依此递减.

Based on the field investigation, plant diversity of the Taxus chinensis var. mairei community in Songyang and Liandu in Westsouth Zhejiang provcince was analyzed by using the index of species richness,species diversity and community evenness in the paper. The results showed that the number of species for tree layer were little in community of Taxus chinensis var. mairei. There are various plants in the community of Taxus chinensis var. mairei,and its family and genus are of scattered composition. Their floral composition is complicated. In terms of genus geographical elements, many of them are distributed in tropical zones. The species richness and species diversity index of woody plants are obviously bigger than those of herb. The species diversity decreases from Shrub, tree layer to herb layer.