广西科学院学报2016，Vol.32Issue(1)：6-14,9.
濒危植物合柱金莲木伴生群落特征
Traits of Concomitant Communities of the Endangered Plant Sinia rhodoleuca
摘要
Abstract
Abstact:[Objective]To study the traits of concomitant communities characteristics of the en-dangered plant Sinia rhodoleuca ,and provide references for its conservation strategies.[Meth-ods]The floristic composition,structure,species diversity,and age structure of endangered plant Sinia rhodoleuca concomitant communities were studied based on community investigation in five locations (Rongshui (P1 ),Jinxiu (P2 )and De-bao (P3 ) county,Guangxi province;Fengkai (P4 ) and Lianshan (P5 ) county,Guangdong province).[Results ]There were 153 vascular plants belonging to 58 families and 1 13 genera in plots of 2000 m2 ,which dominated by the families of Lauraceae,Fagaceae,Myrsinaceae and Rubiaceae.The floristic composition can be divided into 12 areal types in the level of genera,the pantropic,old world tropics and tropic Asia elements were the dominant areal types,and 79.21% of the genera were the tropical el-ements,13.1% were the temperate elements.The structure of concomitant communities of the species Sinia rhodoleuca could be vertically divided into three layers:Tree,shrub and herb layer,and interlayer species were deficient.Compared to P1,P2 and P3 plots,the Shan-non index and Simpson index were higher in P4 and P5 plots because of their lighter habitat destruction.Analysis on the population age structure of Sinia rhodoleuca indicated that ex-cept for the P5 plot,a decline pattern was found in other four investigated plots.[Conclu-sion]The components of plant species were complex,and there was a obvious tropical and subtropical characteristic of the concomitant community.The species diversity of concomi-tant community was relevant to the destruction of the habitat.According to the decline tend-ency of the most populations,a enhanced protection through in situ and ex situ conservation should be adopted for the species Sinia rhodoleuca .关键词
合柱金莲木/濒危植物/伴生群落特征/物种多样性/年龄结构Key words
Sinia rhodoleuca/endangered plant/traits of concomitant communities/species diversity/age structure分类
农业科技引用本文复制引用
陈宗游,柴胜丰,谭萍,蒋运生,杨丽涛..濒危植物合柱金莲木伴生群落特征[J].广西科学院学报,2016,32(1):6-14,9.基金项目
国家自然科学基金项目(31260086),广西青年科学基金项目(桂科青0832075)和广西植物研究所基本业务费项目(12011)资助。 （31260086）
