摘要
云南高原地区是一个十分自然的植物区系地区，其种子植物区系约有５５４５种，隶属于１４９１属和２４９科中，基本上是亚热带性质。本地区水平及垂直替代现象明显，地理联系广泛，但与中国－喜马拉雅亚区不同区系地区联系密切，显然是中国－喜马拉雅区系成分的发源地。根据特有种丰富程度以及一些自然地理特征，云南高原地区在区系上可以划分为３个小区：滇中高原小区、澜沧红河中游小区和滇东南小区，它们之间在许多方面有明显差异，其原因可能由于不同地史背景。
The region of Yunnan Plateau is a very natural one in floristic nature. Its seed plant's flora has about 5545 species in 1491 genera,and 248 families.It is basically subtropical in nature,obvious in horizontal and vertical vicariance,as well as the wide connection in geographical rela-tionships but specially with the regions of Sino-himalayan subkingdom. It seems that the region may be the birthplace of many Sino一himalayan floristic elements.According to the degree of abundance in endemic species and some physiographical features, the region can be floristically divided into three subregions: subregion of Central Yunnan Plateau,subregion of middle reacher of Mekong river and Red river,as well as subregion of SE Yunnan. These subregions have evi-dent differences in many aspects, the reason of that may be due to different geological back-grounds.
出处
《云南植物研究》
CSCD
1995年第1期1-14,共14页
Acta Botanica Yunnanica
基金
国家自然科学基金
关键词
种子植物
植物区系
云南高原
The region of Yunnan Plateau, Seed plant,Floristic study
