深圳马峦山华南紫萁群落及其物种多样性特征研究  

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

作　　者：孙延军[1] 莫贤华[2] 徐晓晖[1] 丁明艳[2] 廖文波[2] 叶常镜 

机构地区：[1]深圳市城市管理局,深圳518049 [2]中山大学生命科学学院,有害生物控制与资源利用国家重点实验室,广州510275

出　　处：《植物研究》2011年第1期67-72,共6页Bulletin of Botanical Research

基　　金：深圳市城管局科技基金资助项目(2009-2010年度)

摘　　要：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。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 ABCDE,which was different from the Raunkiaer＇s frequency law,and was also different from those of montane rainforest of Hainan island;The percentage of tree height and individual number from O.vachellii population showed that those with a tree height 0.3-0.7 meters occurred a higher proportion,indicating the populations was in a bloom of development period;and the Simpson and Shannon-Wiener index of diversity is 16.42 and 4.56,while the evenness index for E and E′ is 0.33 and 0.83,respectively,which indicated the diversity and evenness index is closed to those of the climax community from typical subtropical evergreen broad-leaved forest.The study reveals the natural survival state of O.vachellii and provides protection and utilization data for O.vachellii.

关 键 词：深圳 马峦山 华南紫萁 群落 物种多样性 

分 类 号：S718.54[农业科学—林学]