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植物研究 ›› 2024, Vol. 44 ›› Issue (6): 890-900.doi: 10.7525/j.issn.1673-5102.2024.06.010

• 植物分类学 • 上一篇    下一篇

林芝地区典型区域藓类植物多样性与区系分析

高智远1,2,3, 司孟鑫1,2,3, 王彪1,2,3, 马和平1,2,3()   

  1. 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
  • 收稿日期:2024-03-12 出版日期:2024-11-20 发布日期:2024-11-22
  • 通讯作者: 马和平 E-mail:285477889@qq.com
  • 作者简介:高智远(2000―),男,硕士研究生,主要从事苔藓植物分类学研究。
  • 基金资助:
    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)

Diversity and Flora of Bryophytes in Typical Areas of Linzhi

Zhiyuan GAO1,2,3, Mengxin SI1,2,3, Biao WANG1,2,3, Heping MA1,2,3()   

  1. 1.Institute of Plateau Ecology,Xizang Agriculture and Animal Husbandry University,Linzhi 860000
    2.Key Laboratory of Forest Ecology in Xizang Plateau,Ministry of Education,Linzhi 860000
    3.National Forest Ecosystem Observation and Research Station of Linzhi Xizang,Linzhi 860000
  • Received:2024-03-12 Online:2024-11-20 Published:2024-11-22
  • Contact: Heping MA E-mail:285477889@qq.com

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。

关键词: 苔藓植物, 植物区系, 物种多样性

Abstract:

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.

Key words: bryophytes, flora, species diversity

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