摘要
为了丰富拉萨河谷山地种子植物地理区系及资源研究相关资料,对位于拉萨河流域的亏组山植物区系及资源进行了统计与分析。结果表明:亏组山植物种类相对较为贫乏,共记录到种子植物125种,隶属37科88属。科的区系成分有4个大类型和5个亚类型,并且优势科比较明显,单种科占绝对的优势,占43.24%;属的区系成分有11个大类型和9个亚类型,并且表现出显著的温带特征。科、属特有类型较少,表现出该区域山地种子植物区系的年轻性;资源种子植物按照其用途可以分为10个类型,其中药用植物种类最为丰富,占该区域资源植物种类的76.8%。
The seed plant resources and its geographical composition at Kuizu Mountain in the Lhasa Valley were analysed through the field surveys,specimen collection and accessing different literatures.The plant spe?cies diversity in the study area was relatively poor and a total of 125 species of seed plant were recorded belong?ing to 37 families and 88 genera.The results of analysis on geographical composition of seed plant family showed that there were 4 major geographical distribution types and 5 subtypes,and the families with single species were the dominant family,accounting for 43.24%of the total number of family in the study area.There were 11 major geographical distribution types and 9 subtypes in the geographical composition of genus showing temperate char?acteristics remarkably and there were fewer endemic genera indicating the youngness of the alpine flora.Re?source plants can be divided into 10 types according to their uses,of which medicinal plants were the most abun?dant and accounting for 76.8%of the total resource plant species in the region.
作者
古桑群宗
拉多
武俊喜
向明学
李石胜
达文彦
Gusang-Qunzong;Lhaduo;WU Jun-xi;XIANG Ming-xue;LI Shi-sheng;DA Wen-yan(School of science,Tibet University,Lhasa 850000,China;Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China)
出处
《高原科学研究》
CSCD
2019年第3期21-27,共7页
Plateau Science Research
基金
国家重点研发计划项目(2016YFC0502004-5)
西藏大学研究生高水平人才培养项目(2017-GSP-111)
西藏科技重大专项(XZ201801NA02)
关键词
拉萨河流域
种子植物
区系地理
亏组山
Lhasa Valley
seed plants
geographical composition
Kuizu mountain
