广东石门台自然保护区山顶矮林植物区系的研究

Floristic study of montane elfin forest in Shimentai Nature Reserve of Guangdong Province

对广东英德石门台自然保护区山顶矮林植物区系进行了分析.样地调查结果表明,该群落结构简单,成分较单调.维管束植物共有5 7科10 8属16 2种,其优势科为樟科、山茶科、蔷薇科、杜鹃花科、壳斗科、茜草科、冬青科等,它们绝大多数为热带亚热带科.热带、亚热带分布类型占该区系种子植物属的6 8 4 2 % ,温带地理成分占2 7 37% ,该群落的植物区系具有明显的热带亚热带性质.

Floristic composition of the montane elfin forest in Shimentai Nature Reserve, Guangdong, was analyzed based on community survey data. Field survey indicated that the community was simple in structure and composition, with 57 families of vascular plants including 108 genera and 162 species. Dominant families of the flora were Lauraceae, Theaceae, Rosaceae, Ericaceae, Fagaceae, Rubiaceae and Aquifoliaceae, most of which are tropical-and-subtropical. As for generic distribution, dominant geographical elements were tropical-subtropical genera (68.42%) and temperate genera (27.37%), and most of the floristic elements were tropical-subtropical.