缙云山风灾迹地恢复群落的形态特征与物种多样性研究

以缙云山自然保护区风灾迹地恢复群落5个样地调查资料为基础,研究了缙云山自然保护区风灾迹地恢复群落的特征。结果表明:缙云山自然保护区风灾迹地恢复群落有维管植物84种,隶属于38科60属,科、属的分布型以热带为主,反映了该群落以热带为主的亚热带区系特点;该恢复群落主要由革质、全缘、单叶、小型叶为主的高位芽植物所组成,群落层次分明,可分为乔木层、灌木层和草本层;该恢复群落物种多样性比较高,各样地间多样性指数测值变幅不大;测度缙云山风灾迹地恢复群落物种多样性时,各种多样性指数基本表现出相同的趋势。

Study on the Morphological Characteristic of the Wind-damaged Slash in the Restorable Community of Jinyun Mountain Nature Reserve

On the basis of field investigation,the restorable community characteristics of the wind-damaged slash in Jinyun Mountain Nature Reserve are studied.The results show that there are 84 species of vascular plants in the wind-damaged restorable community in Jinyun Mountain Nature Reserve,which belong to 38 families and 60 genera.The majority of the families and genera are tropic types,which reflects the characteristics of sub-tropic flora with the tropic types as the dominant types.Most of the plants in the restorable community are phanerophytes with coriaceous,entire leaf,simple leaf and microphyll.The stratification of the vertical of the restorable community is obvious.From the top to down,they are divided into shrub layer,tree layer and herb layer.The species diversity index are high in the restorable community,the difference of the index are not remarkable between investigated plots,and the variation patterns of species diversity are similar whichever the index is used.