林芝地区典型区域藓类植物多样性与区系分析  

Diversity and Flora of Bryophytes in Typical Areas of Linzhi

作　　者：高智远 司孟鑫 王彪 马和平[1,2,3] GAO Zhiyuan;SI Mengxin;WANG Biao;MA Heping(Institute of Plateau Ecology,Xizang Agriculture and Animal Husbandry University,Linzhi 860000;Key Laboratory of Forest Ecology in Xizang Plateau,Ministry of Education,Linzhi 860000;National Forest Ecosystem Observation and Research Station of Linzhi Xizang,Linzhi 860000)

机构地区：[1]西藏农牧学院高原生态研究所,林芝860000 [2]西藏高原森林生态教育部重点实验室,林芝860000 [3]西藏林芝高山森林生态系统国家野外科学观测研究站,林芝860000

出　　处：《植物研究》2024年第6期890-900,共11页Bulletin of Botanical Research

基　　金：西藏自治区2023年科技计划项目(XZ202301ZY0041G);国家自然科学基金项目(32060264);西藏农牧学院学科建设项目(533323001)。

摘　　要：青藏高原被称为“世界的第三极”,其东南部地区是我国生物多样性较为丰富的地区,是中国特有苔藓植物的分布中心之一。林芝市地处藏东南地区,植被类型丰富,区系复杂,但目前对该地区藓类植物的多样性研究较少。该研究基于野外调查数据和文献资料,分析了林芝地区典型区域藓类植物区系、多样性,通过分析优势科、优势属、区系成分、多样性指数,比较了林芝地区典型区域的植物群落特征。结果表明:林芝地区4个典型区域共有藓类植物60科249属748种(包括变种、亚种和变型),其中有11个优势科,21个优势属,86种中国特有种和16种受威胁物种。该地区被划分为12种区系类型,苔藓植物区系以北温带分布(20.94%)、热带亚洲分布(18.74%)、喜马拉雅至日本分布(13.32%)和中国特有分布(12.59%)为主,说明该地区藓类植物区系以温带成分为主,兼具热带属性,具有温带向热带过渡的成分。The Qinghai-Xizang Plateau is known as“the Third Pole of the World”,and the southeast is a biodiversity-rich region in China,and is one of the distribution centers of China’s endemic bryophytes.Linzhi City is located in the southeast of Xizang Autonomous Region,with rich vegetation types and complex flora,but there are few studies on the diversity of bryophytes in this region.Based on the field survey data and document literatures,the flora and diversity of bryophytes at four counties(districts)in Linzhi City were analyzed,the specimens were identified and counted,the community characteristics were compared by analyzing the dominant families,dominant genera,zonal components,and diversity indices.The results showed that there were 748 species(varieties,subspecies,and variants),249 genera and 60 families of mosses in four typical areas of Linzhi City,with 11 dominant families,21 dominant genera,86 endemic species and 16 threatened species in China.This area was divided into 12 floras,and the bryophytes were distributed in the North Temperate Zone(20.94%),Tropical Asia(18.74%),China-Himalayan-Janpan(13.32%)and China-Endemic(12.59%).This indicated that the bryophyte flora in this region was dominated by temperate components,and had tropical attributes,with temperate-to-tropical transition components.

关 键 词：苔藓植物 植物区系 物种多样性 

分 类 号：Q949.35[生物学—植物学]