重庆巫山五里坡自然保护区种子植物科属区系分析  

Spermatophyte flora of Wulipo Nature Reserve,Wushan County,Chongqing City

作　　者：陈丹维[1,2] 肖文发[3] 邵莉[1] 郑伟[1] 刘涛[1] 何亨晔 陈龙清[1] 

机构地区：[1]华中农业大学园艺植物生物学教育部重点实验室,武汉430070 [2]浙江树人大学城建学院,杭州310015 [3]中国林业科学研究院森林生态环境与保护研究所,北京100091 [4]重庆市巫山县林业局,巫山404700

出　　处：《华中农业大学学报》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

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.

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 

分 类 号：S718[农业科学—林学]