【摘要】 调查福建南靖和溪南亚热带雨林的 30个样地 ,共 30 0 0 m2 的群落面积 ,分析群落物种多样性特征 ,得到 Margalef丰富度指数 D1=0 .92 50 ,Shannon- Wiener指数 D2 =4 .5454,Simpson指数D3 =7.330 5,PIE=0 .930 0 ,均匀度 J=0 .86 0 3.探讨乔木层、灌木层物种多样性特征值 ,其变化趋势与群落总多样性一致 .分析群落中 16个主要乔木种群的年龄结构 ,揭示群落乔木层主要建群种呈增长型 ,表明该森林群落稳定性较高更多还原

【Abstract】 The species diversity of30 plots,30 0 0 m2 area of subtropical rainforestin Hexi, Nanjing,Fujian were analysed.The Results showed thatthe Margalef richness index( D1 ) of this community was 0 .92 5 0 ,Shannon- Wiener index( D2 ) was 4.5 45 4,Simpson index ( D3) was7.330 5 ,PIE was0 .930 0 ,Pielou evenness was0 .86 0 3.The diversity of crown layer and shrub had the same change trend as the whole community.The age structure of1 6 main tree populations showed that the constructive species was a raising population and the community was an ecosystem of higher stability.更多还原