Abstract: Applying α-diversity indices,the species diversity of different regeneration patterns in Castanopsis carlesii community in Sanming,Fujian Province were analysed.The results showed that the species richness index,diversity index and evenness index of different regeneration patterns were in the following order:natural regeneration >artificial regeneration >artificial afforestation.C. carlesii forest of natural regeneration was in the middle stage of succession,and C. carlesii forest of artificial regeneration and artificial afforestation were in the degenerative stage.

Key words: regeneration pattern, castanopsis carlesii, species diversity, Sanming, Fujian Province

摘要： 本文从α多样性尺度总结三种不同更新方式的米槠林群落的物种多样性状况。结果表明,不同更新方式的米槠林群落中,物种丰富度、多样性指数和均匀度表现为天然更新> 人促更新> 人工造林。天然更新和人促更新米槠林是在皆伐迹上未经炼山发育起来的群落,而人工造林米槠林是从火烧迹地上发育的。天然更新米槠林处于演替的中级阶段,未达到顶级群落;而人促更新和人工造林米槠林则处于衰退阶段。

关键词: 更新方式, 米槠, 物种多样性, 福建三明