深圳马峦山华南紫萁群落及其物种多样性特征研究

对深圳马峦山地区华南紫萁占优势的植物群落进行研究，结果表明：华南紫萁群落中共有维管植物48科69属82种，种类组成具有明显的南亚热带性质；年龄结构显示群落的主要优势种属于稳定型种群，群落总体处于稳定状态；群落的频度指数规律为A＞B＜C＞D＞E，与RaunKiaer频度定律、海南岛山地雨林优势种群的频度规律等不相符合；华南紫萁种群树高和个体数百分比显示，种群高度0.3~0.7 m植株占比例较大，种群处于旺盛发展期；物种多样性指数为SP＝16.42，SW＝4.56，均匀度指数为E＝0.33，E′＝0.83，群落物种多样性指数和均匀度指数均较高，接近典型南亚热带常绿阔叶林顶极群落类型。本研究揭示了华南紫萁野外生存状态，为该种的保护和利用提供了基础资料。

Characteristics of Osmunda vachellii Communities and Species Diversity from Mount Maluanshan in Shenzhen

According to the field investigation and analysis of the Osmunda vachellii populations and communities from Mount Maluanshan in Shenzhen,the results indicated that:82 species of vascular plants,belonging to 48 families and 69 genera were found in the O.vachellii community,the floristic components of community was with an south subtropical property;The analysis for the age structure of the community showed that the main dominant species were stable populations,but the frequence index of community was A>BD...