色季拉山区高寒山地植物的生态特征  

Characteristics of Vegetation of the Alpine Frigid Zone in Shergyla Mountain,Xizang

作　　者：林玲[1] 罗建 郑维列 

机构地区：[1]西藏农牧学院,西藏林芝860000 [2]西藏高原生态研究所,西藏林芝860000

出　　处：《西北植物学报》2008年第11期2327-2331,共5页Acta Botanica Boreali-Occidentalia Sinica

基　　金：973计划前期研究专项(2006CB708403);国家自然科学基金(30860026);国家林业局西藏高山森林生态系统定位研究项目(2005-11);西藏农牧学院青年教师基金

摘　　要：通过野外调查和现有文献资料,分析了色季拉山高寒地带植物的构成特征,结果表明:该区有种子植物33科103属285种,其中双子叶植物有26科77属236种,裸子植物有1科1属4种,中国特有植物125种,占总种数的44.01%,西藏特有植物53种,占18.66%。在整个高山寒带中,草本有239种,占83.86%,其中多年生草本230种。植被区系组成、群落植物生活型和叶的性质等特征总体都反映了植被的温带性质。并阐述了该区高山植物对高山恶劣气候环境相适应的形态结构特征。Based on the documentation and investigation of plant resources, species richness and species composition of the alpine frigid zone in Shergyla Mountain,have been systemically analyzed in this paper. The results show.there are 33 families, 103 genera and 285 species in seed plants of the alpine frigid zone in Shergyla Mountain. Among them there are 26 families,77 genera and 236 species of Dicotyledon and there are 1 families, 1 genera and 4 species of Gymnospermae,and 44.01% species are endemic in China including 18. 66% endemic to Xizang. There are 239 herb species including 230 perennial herbs or 83.86% species belong to the herbs. The flora components, life-form spectrum and leaf characters shows their typical temperate character.

关 键 词：色季拉山 高寒山地 植被 生态特征 形态结构 

分 类 号：Q948.157[生物学—植物学]