井冈山自然保护区甜槠群落物种多样性分析

以甜槠群落6个样地调查资料为基础,对该群落的区系组成和不同样地、不同层次的物种多样性进行了分析,结果表明:(1)甜槠群落中有维管植物59科85属116种(含变种);属的地理成分以热带成分占优势,温带成分占有一定的比例。(2)乔木层、灌木层和草本层的各项物种多样性指标在群落各样地间均有一定的差异;在群落垂直结构中,灌木层的多样性指数最大,乔木层次之,草本层最小。

Analyses on species diversity of Castanopsis eyrei community in Jinggangshan nature reserve

Flora composition and species diversity features of Castanopsis eyrei community in jing-gang Mountain were analyzed,according to the statistics from 6 sample plots. The result show:(1)there are 116 species (including varieties)of 85 genus belonging to 59 families of vascular plants.In terms of geographical composition of vascular plant genus,most of them are tropical genera,a few temperate genera. (2 )The diversity indexes of tree layer,shrub layer or herb layer among various plots are somewhat different, the species diversity of shurb layer is the highest,the tree layer the second, and the herb layer the lowest in the vertical structure of the community.