荣县金花乡桫椤自然保护区桫椤群落的初步研究

A Preliminary Study on the Alsaphila Spinulosa Community in Jinhua Nature Conservation Zone of Rong County,Sichuan,China

从植物区系、种类组成、外貌形态和空间结构等方面报道了四川省荣县金花乡桫椤自然保护区桫椤的群落学特征。区系分区为泛北极植物区 ,中国—日本森林植物亚区 ,华中植物地区。科属分布区类型以热带成分占绝对优势 ,优势种和亚优势种集中在桫椤科、樟科、紫草科、忍冬科和紫金牛科。群落外貌特征为单叶、中型叶为主的常绿高位芽植物所决定 ,属中亚热带常绿阔叶林植被。其群落结构可划分为乔木层、灌木层和草本层 ,嵌镶性明显。针对保护区的现状 。

The features of the Alsophila Spinulosa community in Jinhua nature coservation zone were studied on the basis of the reserch on the flora,components,appearance and the space structures.The flora belongs to the central China region of Sino-Japen forest subkingdom of the Holarotic Kingdom.The dominant species and subdominant species are Cytheaceae,Laureceae,Boraginaceae,Caprifoliaceae and Myrsinaceae.The appearance of the community is characterized by the evergreen plants which buds are located high and which leaves belong to simple and middle types.The community structure includes forest,shrub and herbaceous layers,and at the same time ,the mosaic is obvious.The present situation of the consevation zone is described and some proposals for protection are advanced.