广西五皇山地区植物区系特性

Floristic Characteristics of Wuhuang Mountain Area in Guangxi,China

为揭示广西南部五皇山地区的植物区系特征,通过野外调查和文献查阅,对广西五皇山国家地质公园及邻近区域的植物资源进行调查研究。结果表明,五皇山地区分布野生植物1 002种,隶属于167科581属,包括蕨类植物20科37属73种,裸子植物3科4属5种,被子植物144科540属924种,以被子植物占优势。科属的地理成分均以热带成分为主,属的热带性更强,其中泛热带成分占最大优势,温带成分则以北温带为主。中国特有属4属,未见中国特有科。该地区植物区系总体表现为物种丰富度高,区系热带性质强,特有性弱的特征。

In order to reveal the floristic characteristics of plantws in Wuhuang Mountain area in southern Guangxi,the plant resources of Wuhuang Mountain National Geopark and its adjacent areas in Guangxi were studied through field investigation and literatures.The results showed that there were 1002 species of wild plants in Wuhuang mountain area,belonging to 167 families and 581 genera,including 73 species of ferns in 20 families and 37 genera,5 species of gymnosperms in 3 families and 4 genera,and 924 species of angiosperms in 144 families and 540 genera.Angiosperms were dominant.The geographical elements at family and genus levels were mainly tropical,and the genus was more tropical,in which the pantropical component was the most dominant,and the temperate component was mainly north temperate.There were 4 genera endemic to China and no endemic family to China.So,the flora of this area was characterized by high species richness,strong tropical and weak endemism.