吉首大学学报(自然科学版) ›› 2024, Vol. 45 ›› Issue (4): 59-66.DOI: 10.13438/j.cnki.jdzk.2024.04.009

• 生物 • 上一篇    下一篇

保靖县受威胁植物调查

蒋龙,陈大华,江玫,张代贵   

  1. (1.湘西土家族苗族自治州林业科学研究所,湖南 吉首 416000;2.湘西土家族苗族自治州林业局,湖南 吉首 416000;3.吉首大学生物资源与环境科学学院,湖南 吉首 416000)
  • 出版日期:2024-07-25 发布日期:2024-07-23
  • 作者简介:蒋龙(1978—),男,湖南龙山人,湘西土家族苗族自治州林业科学研究所高级工程师,主要从事森林经营与培育研究
  • 基金资助:
    2023年中央林业草原生态保护恢复项目(州财预〔2022〕251号)

Investigation and Analysis of Threatened Plants in Baojing County

JIANG Long,CHEN Dahua,JIANG Mei,ZHANG Daigui   

  1. (1.Forestry Research Institute of Xiangxi Tujia and Miaozu Autonomous Prefecture,Jishou 416000,Hunan China;2.Forestry Bureau of Xiangxi Tujia and Miao Autonomous Prefecture,Jishou 416000,Hunan China;3.College of Biological Resources and Environmental Sciences,Jishou University,Jishou 416000,Hunan China)
  • Online:2024-07-25 Published:2024-07-23

摘要:为了掌握保靖县受威胁植物现状,采用野外实地调查、标本采集整理和文献查阅等方法,对县境内受威胁植物进行了调查分析.结果表明,保靖县受威胁植物共36科55属70种,其中极危4种,濒危21种,易危45种;类别组成中,被子植物受威胁程度最高;科属组成中,受威胁植物以单种科、单种属为主;生活型组成中,受威胁植物以草本植物为主;受威胁植物属的区系地理成分复杂,起源和发展与热带分布联系密切,东亚成分突出,表现出亚热带性质;受威胁植物种群数量呈正态分布,地理分布不均衡;生境退化或丧失、直接采挖砍伐是受威胁植物最主要的致危因子,3个保护地为保靖县受威胁植物提供了有效的保护.

关键词: IUCN红色名录, 受威胁植物, 保靖县

Abstract: To grasp the current situation of threatened plants in Baojing County,methods such as field investigation,specimen collection and organization,and literature review were adopted to investigate and analyze the threatened plants of the area.The results show that there were 70 species of threatened plants in 36 families,55 genera,of which 4 were critically endangered,21 were endangered,and 45 were vulnerable.Among the categories,angiosperms were the most threatened.In the composition of family and genus,the threatened plants mainly belong to single species and single species.In the composition of life forms,the threatened plants were mainly herbaceous plants.The floristic composition of threatened plant genera is complex,their origin and development are closely related to tropical distribution,and East Asian components are prominent,showing subtropical characteristics.The population of threatened plants is normally distributed,and the geographical distribution is unbalanced.Habitat degradation or loss and direct harvesting and felling are the main risk factors for threatened plants.Three protected areas in Baojing County provide effective protection for threatened plants.

Key words: IUCN red list, threatened plant, Baojing County

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