广东石门台自然保护区常绿阔叶林物种多样性分析

Species Diversity of Evergreen Broadleaved Forest in Shimentai Nature Reserve,Guangdong Province,China

基于样方调查的基础上,研究了石门台自然保护区内木荷+紫花杜鹃林、木荷+腺叶山矾林和木荷林3种常绿阔叶林物种的多样性.研究结果表明:1)石门台自然保护区物种十分丰富,3个群落冠层树种共计41科74属105种,其中木荷+紫花杜鹃林34科53属66种,木荷+腺叶山矾林28科44属56种,木荷林24科39属50种.2)保护区内3个样地群落共计75个样方,其中丰富度、均匀度指数、Shannon-Wiener多样性指数和Simpson指数的平均值分别为12.466,0.731,1.807和0.726.总的来说,石门台自然保护区常绿阔叶林物种多样性指数、均匀度指数和Simpson指数都比较高.

The study of the species diversity of the evergreen broadleaved forest in Shimentai Nature Reserve is based on the quadrat survey. The results show that： （1） The species of Shimentai Nature Reserve species are very rich that a total of 41 families and 74 genera and 105 kinds in three community canopy trees. While among this, 34 families, 53 genera and 66 species of forest are Schima superba 4-Rhododendron rnariae, 28 families, 44 genera and 56 species are Schima superba＋gland Sym- plocos forest and 24 families,39 genera and 50 species of forest are Schima superba. （2） There are a total of 75 plots in three sample communities in the protection zone, in which the average value of the richness, the evenness index, the Shannon-Wiener diversity index and the Simpson index is 12. 466, 0.731, 1. 807 and 0. 726 respectively. All in all, the diversity index, evenness index and Simpson index of evergreen broad-leaved forest species in Shimentai Nature Reserve are a little higher.