雷公山甜槠栲群落的物种结构与多样性特征  

Species Structure and Diversity of Castanopsis eyrei Community in Leigongshan

作　　者：闫国华[1] 刘济明[1] 赵小鹏[1] 王敏[1] 文萍[1] 李鹏[1] 颜强[1] 池馨[1] 

机构地区：[1]贵州大学林学院,贵州贵阳550025

出　　处：《贵州农业科学》2013年第8期28-33,共6页Guizhou Agricultural Sciences

基　　金：贵州省科技计划课题"贵州主要大中型叶树种固碳及其效益评价"[黔科合SY字(2011)3108]

摘　　要：为了探明雷公山甜槠栲群落的物种结构与多样性特征,采用典型样地调查法,对雷公山甜槠栲群落进行观测.结果表明：1）群落内共有植物69种,隶属46科59属.其中,乔木层36种（隶属18科）,灌木层43种（隶属31科）,草本层树种12种（隶属11科）,灌木层和乔木层重合的有22种.2）群落内植物科的分布区类型以泛热带分布最多,达34.78％；其次是北温带分布和世界广布,分别达23.91％和17.39％.总体而言,科的分布区类型热带（52.17％）成分大于温带成分（28.26％）.3）群落垂直分布面,乔木层高度5～10 m的占大多数,比例达65％左右；灌木层高度值在0～1 m的树种占大多数比例,可达76％左右；草本层高度在0.1～0.2 m的树种所占比例较大,达41％,群落层次分层明显.4）群落乔木和灌木径级分布呈倒“J”形状,更新良好.5）不同群落层次的多样性指数、均匀度指数及丰富度指数均呈现出灌木层＞乔木层＞草本层的规律.In order to explore the species structure and diversity of C.eyrei community in Leigongshan,the authors made a typical sample-plot survey in Leigongshan,Results：1） A total of 69 species,belonging to 59 genera and 46 families were found in the community.Among them there were 36 arbor species,belonging to 18 families and 43 shrub species belonging to 31 families,besides,there were 12 herbage species,belonging to 12 families; 2） Pantropical distribution of plant families in the communication accounted for the most,34.78%,followed by North Temperate （23.91%） and Cosmopolitans（17.39%）.In general,tropical proportion（52.17%） was bigger than temperate proportion （28.26%） ; 3） As for vertical distribution of C.eyrei,plant height of arbor layer in the range of 5 m to 10 m have a higher proportion which was up to about 65%,besides,the proportion of shrub layer in the range of 0～1 m had a higher proportion which was up to 76%,and herbage layer in the range of 5 m to 10 m was up to about 41%,different？ layers？ in community was obvious; 4）The DBH distribution of arbor layer and shrub layer in community was an inverted-J shape; 5）Quotas on species diversity richness and evenness in different layers of community had the same rule：shrub layer〉arbor layer〉herbage layer.

关 键 词：雷公山 甜槠栲群落 区系 物种组成 垂直结构 径级结构 多样性特征 

分 类 号：S181.3[农业科学—农业基础科学] S792