浙江天童山区灌丛群落的物种多样性及其与演替的关系

根据浙江天童山区灌丛群落的样地调查数据，采用Shannon－Wiener多样性指数、Simpson指数和群落均匀度指数研究了灌丛群落的物种多样性，并与当地的常绿阔叶林进行了比较。结果表明：这3种指标能够有效地表征亚热带灌丛群落的组成结构特征。天童灌丛群落灌木层的物种多样性指数 SW 高于常绿阔叶林中乔木层，而低于常绿阔叶林中灌木层。灌丛群落灌木层的生态优势度 SN 低于常绿阔叶林中乔木层，但高于常绿阔叶林中灌木层。灌丛群落灌木层的群落均匀度 PW 比常绿阔叶林中乔木层的和灌水层的都低。此外，文中还就本区灌丛群落物种多样性的特点，讨论了加速其进展演替的恢复措施。

Species diversity of a shrub community in Tiantong region, Zhejiang Province and its implication for succession

Species diversity of a shrub community in Tiantong region, Zhejiang Province was measured by applying Shannon_Wiener diversity index( SW ), Simpson ecological dominance( SN ) and evenness index( PW ). The result showed that these indices could effectively reveal the characteristics of species composition for sub_tropic shrubs. SW value of the shrub layer in Tiantong shrub community (TSC) is higher than that of tree layer in evergreen broad_leaved forest(EBLF), but is lower than that of shrub layer in EBLF. SN value of the shrub layer in TSC is lower than that of tree layer in EBLF, but it is higher than that of shrub layer in EBLF. PW value of the shrub layer in TSC is lower than that of both tree layer and shrub layer in EBLF. In addition, restoration measures on how to accelerate the progressive succession of the shrub community were tentatively discussed based on species diversity.