早花金花茶地理分布及生态生物学特性研究  

Distribution and Eco-and Biological Characteristics of Early Blossoming Camellia Sect.Chrysanth Chang

作　　者：刘杰恩 宁世江[2] 唐润琴[2] 丁涛[2] 蒋运生[2] 韦霄[2] 

机构地区：[1]广西壮族自治区林业厅,广西南宁530022 [2]广西壮族自治区中国科学院广西植物研究所,广西桂林541006

出　　处：《广西科学》2012年第4期369-373,共5页Guangxi Sciences

基　　金：广西林业全球环境基金(GEF)项目(2011GXGEF001)资助

摘　　要：对一种最近在大新县发现的,目前已知最早开花的,暂定其中文名为早花金花茶的金花茶组植物,进行地理分布和生态生物学特性研究。结果发现,该种金花茶分布在广西西南部大新的榄圩乡和崇左市的左州、太平镇的20个村屯范围内,位于东经107°16′～107°22′,北纬22°30′～22°39′的岩溶区域,垂直分布海拔高220～450m,为岩溶山地季节性雨林灌木层组成种类,具有一定耐旱能力。现状群落为次生幼中龄林,区系组成是热带分布型科属占主导地位,与温带分布型科属分别呈9.0∶1.0和8.9∶1.1的组成格局;群落结构简单,乔木层和灌木层发育稍好,草本层发育很差。居群个体多以复茎形式存在,以萌生和实生苗更新方式实现其种群的延续。A Camellia group plant,known as the earliest flowering currently,was found recently in Daxin county, Guangxi. Its morphological characteristics differed from the other species, so we temporally named it as early blossoming Camellia. The geographic distribution,ecological and biological characteristics of the plant were fully investigated. The results showed that early blossoming Camellia mainly distributes in the 20 villages within Ganxu town in Daxin county and Zuozhou,Taiping town in Chongzuo city of southwest of Guangxi,locating at Karst region between longitude 107°16′- 107°22′and latitude 22°30′- 22°39′. The altitude is about 220 to 450 meters. The vegetable type,with some drought tolerance, belongs to shrub layer of Karst mountain seasonal rain forest. The community is the secondary forest in young and middle- aged; the species composition is complex,and the family and genera of tropical distribution pat- tern are dominated and have the proportion of 9.0 ： 1.0 and 8.9 ： 1.1 over that of temperate distribution pattern. The structure of the community is very simple： tree layer and shrub layer develop better while the herb layer is poor. The individuals of the plant exist mostly in the form of the complex stem, which can regenerate the population by means of sprouting and seedlings.

关 键 词：地理分布 生态习性 群落特征 更新特性 早花金花茶 

分 类 号：Q948[生物学—植物学]