摘要
通过采集标本、拍照、鉴定、统计,对重庆巫山五里坡自然保护区植物物种多样性进行了研究。结果表明:五里坡自然保护区共有野生种子植物156科796属2 379种(含种下等级);该地区植物区系成分温带性质稍强,在属的水平上,温带成分占优势,占该地区非世界性属总数的60.51%;热带成分占该地区非世界性属总数的34.50%;间断分布属占该地区非世界性属总数的20.35%,其中东亚和北美洲间断分布属占首位;中国特有属37个,占该地区非世界性属总数的4.99%。与四川地区及临近的2个自然保护区相比,五里坡和后河自然保护区的相似性最大,表现出较强的温带性质。五里坡由于其特殊的地理位置及环境,在植物区系的组成上具有较强的特殊性,对研究华中地区和西南地区植物区系具有重要意义。
The diversity of plant species of Wulipo Nature Reserve of Wushan County,Chongqing City was investigated by means of sampling,photo-taking,identifying and analyzing statistically.The results showed that there are 2 379 species（including infraspecific taxon） of spermatophyte belonging to 796 genera and 156 families in.At the generic level,temperate elements were the dominant components,in which temperate genera and tropical genera contributed 60.51% and 34.50% of the total（excluding cosmopolitan genera）,respectively;disjuncted genera contributed 20.35% of the total（excluding cosmopolitan genera）,in which East Asia and North America disjuncted genera contributed majorly.There are 37 genera endemic to China,contributed 4.99% of the total（excluding cosmopolitan genera）.Wulipo Nature Reserve has a special flora,which due to its unique location and entironment,that is very important to the study on middle China and south-west China flora.Compared with the flora of Sichuan and two neighboring areas,the flora of Wulipo Nature Reserve showed high similarity with Houhe Nature Reserve,exhibiting strong temperate elements.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2012年第3期303-312,共10页
Journal of Huazhong Agricultural University
基金
国家自然科技资源平台项目
国家林业局-三峡委员会办公室联合资助项目
关键词
重庆巫山五里坡自然保护区
种子植物区系
物种多样性
特有种
植物地理成分
Wulipo Nature Reserve
Wushan County
Chongqing City
spermatophyte flora
diversity of plant species
endemic species
phytogeographic elements
