粤北车八岭小红栲群落的植物区系成分分析

Floristic Analysis of Castanopsis carlesii Community in Chebaling National Nature Reserve, North Guangdong

对粤北车八岭国家级自然保护区小红栲（Ｃａｓｔａｎｏｐｓｉｓｃａｒｌｅｓｉ）群落植物区系进行了分析．样地调查结果表明，该群落种类丰富．维管束植物共计有５４科，８７属１３２种．该区系的主要表征科为壳斗科Ｆａｇａｃｅａｅ、樟科Ｌａｕｒａｃｅａｅ、茶科Ｔｈｅａｃｅａｅ、冬青科Ａｑｕｉｆｏｌｉａｃｅａｅ、木兰科Ｍａｇｎｏｌｉａｃｅａｅ、杜英科Ｅｌａｅｏｃａｒｐａｃｅａｅ等．区系成分以热带亚热带成分为主．车八岭小红栲群落位于中亚热带向南亚热带过渡地带，该区系是华南植物区系的一部分，可归入华夏植物区系，隶属于华南亚区．

Floristic elements of Castanopsis carlesii community in Chebaling, North Guangdong, was analyzed based on a detailed sampling. 132 species of vascular plants belong to 54 families and 87 genera were found to occurred on the community. Characteristic families of the community are Fagaceae, Lauraceae, Theaceae, Aquifoliaceae, Magnoliaceae and Elaeocarpaceae. Tropical elements are most aboudant. In view of the fact that Chebaling national nature reserve is located on the transition zone form tropical to subtropical regions. It can be inferred that the flora can be incorporated into the Cathaysian Flora, directly under South China subregion.