井冈山猴头杜鹃群落特征的研究  

Studies on the community characteristics of Rhododendron simiarum in Jinggang Mountain

作　　者：邓贤兰[1] 吴杨[1] 刘玉成[2] 钟娟[1] 

机构地区：[1]江西省井冈山大学生命科学学院,江西吉安343009 [2]西南大学生命科学学院,重庆北碚400715

出　　处：《生态环境学报》2011年第10期1430-1435,共6页Ecology and Environmental Sciences

基　　金：国家自然科学基金项目(31060263);教育厅重点实验室项目(GJJ10688);井冈山大学博士启动基金项目(JZB11024)

摘　　要：以井冈山猴头杜鹃(Rhododendron simiarum)群落5个样地调查资料为基础,对该群落的物种组成、区系成分、群落结构和物种多样性进行了研究,结果表明:群落有维管植物30科43属50种,其中蕨类植物有5科6属6种,裸子植物4科4属4种,被子植物21科33属40种。区系分析显示该植物区系起源古老,地理成分复杂,以热带性成分为主,温带性成分占有一定的比例。群落为复层异龄结构,猴头杜鹃、甜槠(Castanopsis eyrei)、福建柏(Fokienia hodginsii)、台湾松(Pinus taiwanensis)、薯豆(Elaeocarpus japonicus)和白豆杉(Pseudotaxus chienii)为群落的建群种。除Pielou指数外,群落物种多样性指数较低,各样地间多样性指数测值变幅较大;测度猴头杜鹃群落物种多样性时,各种多样性指数基本表现出相同的趋势;总体来看,猴头杜鹃群落物种多样性在群落不同层次的变化规律为:灌木层>乔木层>草本层。Based on data collected from five plots of Rhododendron simiarum in the Jinggang Mountain,the species and floral composition,the community structure and the species diversity were analyzed.Results showed that there were 50 vascular plant species belonging to 43 genera and 30 families,among them,6 plant species belonging to 6 genera and 5 families were pteridophyte,4 plant species belonging to 4 genera and 4 families were gymnosperm,and 40 plant species belonging to 33 genera and 21 families were angiosperm.The floristic analysis showed the flora is ancient and geographical elements are complex,tropical elements are obvious with a certain proporiton of temperate-zone elements.The structures of Rhododendron simiarum commuinty are many storied all-aged forest,.The constructive species are Rhododendron simiarum,Fokienia hodginsii,Castanopsis eyrei,Pinus taiwanensis,Elaeocarpus japonicus and Pseudotaxus chienii.The species diversity index in Rhododendron simiarum was low with high variations among plots except Pielou index,and the variation patterns of species diversity are similar whichever the index is used.Generally,the order of the magnitude of species diversity was： shrub layertree layerherb layer.

关 键 词：猴头杜鹃 群落特征 区系分析 物种多样性 井冈山 

分 类 号：Q948[生物学—植物学]