西藏野生苦苣苔科植物名录和物种多样性分析  

Catalogue and Species Diversity of Wild Geseneriaceae in Xizang

作　　者：雷鸣 LEI Ming(Xizang Plateau Institute of Biology,Lasa Xizang 850000,P.R.China)

机构地区：[1]西藏自治区高原生物研究所,西藏拉萨850000

出　　处：《西部林业科学》2023年第4期40-48,共9页Journal of West China Forestry Science

基　　金：西藏自治区科技计划项目(XZ202001YD0008C)。

摘　　要：通过查阅文献,结合作者团队多年野外调查的数据,参照新系统和新名录,完成西藏苦苣苔科植物名录。在此基础上,从物种组成、特有性和相似性等方面对其物种多样性进行分析,并确定西藏苦苣苔科植物分布的热点地区。结果显示:(1)西藏共有苦苣苔科植物11属62种;(2)西藏苦苣苔科植物分布在28个县级行政区,与云南相似性最高,有中国特有种28个,西藏特有种21个;(3)垂直分布上1800~2400 m海拔段物种丰富度最高,最后筛选出2个热点县,共代表82.26%的物种。该研究结果为西藏野生苦苣苔科植物资源保护和可持续利用提供参考。Through literature review and field survey,then referring to the new system and the new catalogue,the catalogue of Gesneriaceae from Xizang was completed.On this basis,the species diversity was analyzed from the species composition,emdemism and similarity.The hotspots of Gesneriaceae from Xizang were determined by a complementary algorithm.The results shows:(1)There are 62 species of Gesneriaceae from Xizang,belonging to 11 genera;(2)There plants are distributed among 28 county,including 28 species endemic to China and 21endemic to Xizang;(3)The vertical distribution is the most abundant at altitudes section of 1800-2400 m.Finally,2 hotspots were selected,representing 82.26%of the Gesneriaceae plants.This study can provide a reference for the conservation and sustainable utilization of Gesneriaceae plants resources in Xizang.

关 键 词：苦苣苔科 西藏 名录 热点地区 相似性系数 物种多样性 

分 类 号：Q949.778.4[生物学—植物学]