广西受干扰罗浮栲林群丛的分类

Association classification of disturbed Castanopsis fabri forests in Guangxi Province

为了探索罗浮栲Castanopsis fabri林的结构和组成的演替动态,采用群落样方法调查了在广西广泛分布的以罗浮栲为主的常绿阔叶林。依据样方数据计算了群丛各植物的重要值,根据乔木层、灌木层和草本层的优势种,对广西受干扰的罗浮栲林进行了群丛分类,共有以下6个群丛:即罗浮栲-厚叶鼠刺Itea coriacea-杜茎山Maesa japonica-镰叶瘤足蕨Plagiogyria distinctissima群丛、罗浮栲-朱砂根Ardisia crenata-尖叶楼梯草Elatostema acuminata群丛、罗浮栲-长尾粗叶木Lasianthus longicauda-狗脊Woodwardia japonica群丛、罗浮栲-罗伞树Ardisia quinquegona-金狗毛Cibotium barometz群丛、罗浮栲-九节木Psychotria rubra-金狗毛+东方乌毛蕨Blechnum orientale群丛和罗浮栲-杜茎山-狗脊群丛。

In order to understand the successional dynamics of Castanopsis fabri forests, which widely distributed in Guangxi Province, the plant species composition and structure of the evergreen forests were investigated by sampling method. The important values of the whole plant species were calculated. According to dominant species in shrub and herb layer, six common Castanopsis fabri Associations in Guangxi were classified as follows ： （ 1 ） Castanopsis fabri-Itea coriacea-Maesa japonica-Plagiogyria distinctissima Association, （2） Castanopsis fabri-Ardisia crenata-Elatostema acuminata Association, （3） Castanopsis fabri-Lasianthus longicauda-Woodwardia japonica Association, （4） Castanopsis fabri-Ardisia quinquegona-Cibotium barometz Association, （5）Castanopsis fabri-Psychotria rubra-Cibotium barometz ＋ Blechnum orientale Association, and （6） Castanopsis fabri-Maesa japonica-Woodwardia japonica Association. The research is a theoretical basis for the restoration, conservation and scientific management of the disturbed Castanopsis fabri forests. [ Ch, 4 tab. 10 ref. ]