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林业资源管理 ›› 2020, Vol. 0 ›› Issue (2): 120-125.doi: 10.13466/j.cnki.lyzygl.2020.02.018

• 科学研究 • 上一篇    下一篇

贵州百里杜鹃景区植物群落多样性与稳定性研究

王加国1(), 李苇洁1(), 张红军2, 吴迪1, 张建利1, 贾真真1   

  1. 1.贵州省山地资源研究所,贵阳 550001
    2.贵州百里杜鹃管理区城乡建设规划局,贵州 毕节 551614
  • 收稿日期:2019-12-31 修回日期:2020-04-25 出版日期:2020-04-28 发布日期:2020-06-15
  • 通讯作者: 李苇洁
  • 作者简介:王加国(1989-),男,贵州水城人,助理研究员,研究方向:保护生物学。Email:545530551@qq.com
  • 基金资助:
    国家自然科学基金(41561109)

Study on the Diversity and Stability of Plant Communities in Baili hododendron Scenic Area in Guizhou Province

WANG Jiaguo1(), LI Weijie1(), ZHANG Hongjun2, WU Di1, ZHANG Jianli1, JIA Zhenzhen1   

  1. 1. Institution of Mountain Resources of Guizhou Province,Guiyang 550001
    2. Baili Rhododendron Scenic Area Construction Bureau,Bijie 551614
  • Received:2019-12-31 Revised:2020-04-25 Online:2020-04-28 Published:2020-06-15
  • Contact: LI Weijie

摘要:

百里杜鹃是全球同纬度范围内中低海拔区已知面积最大的天然杜鹃林。为了解其主要植物群落的物种多样性和群落稳定性,选取景区内的马缨杜鹃林(Form.Rhododendron delavayi)、露珠杜鹃林(Form.Rhododendron irroratum)、杜鹃混交林(马缨杜鹃+露珠杜鹃林)(Form.Rhododendron delavayi+Rhododendron irroratum)和杂木林(茅栗+白栎林)((Form.Castanea seguinii+Quercus fabri))等4种主要群落,采用α多样性指数、M.Godron方法分别测定其物种多样性和稳定性。结果表明:1)4种群落物种丰富度从高到低依次为杂木林(茅栗+白栎林)>杜鹃混交林(马缨杜鹃+露珠杜鹃林)>马缨杜鹃林>露珠杜鹃林;2)Simpson指数、Shannon-Wiener指数和Pielou均匀度指数在不同群落的乔、灌、草3个层次变化规律不一致,多样性指数均以露珠杜鹃林最低;3)4种群落仅马缨杜鹃林呈稳定状态,以杂木林(茅栗+白栎林)群落最不稳定。各群落不同层次中,最不稳的为露珠杜鹃林的草本层。

关键词: 物种多样性, 杜鹃林, 群落特征, 群落稳定性, 百里杜鹃

Abstract:

Baili Rhododendron is the largest known natural Rhododendron forest in the middle and low altitude regions of the same latitude in the world.In order to study the species diversity and community stability of the main plant communities,four main communities were selected:Form.Rhododendron delavayi,Form.Rhododendron irroratum,Rhododendron mixed forest (Form.Rhododendron delavayi +Rhododendron irroratum) and mixed forest (Form.Castanea seguinii+Quercus fabri).The species diversity and stability were measured using α diversity coefficient and M.Godron method.The results were as follows:1) From high to low,the species richness of the four communities was mixed forest (Form.Castanea seguinii+Quercus fabri)>Rhododendron mixed forest (Form.Rhododendron delavayi+Rhododendron irroratum)> Form.Rhododendron delavayi > Form.Rhododendron irroratum;2) The Simpson index,Shannon-Wiener index and Pielou's evenness index vary in the three levels of arbors,shrubs,and herbs in different communities,but the four diversity indexes are the lowest in the Form.Rhododendron irroratum;3) Among the four communities,only the Form.Rhododendron delavayi was stable,and the community of mixed forest (Form.Castanea seguinii+Quercus fabri) was the most unstable.Among the different levels of each community,the most unstable is the herb layer of the Form.Rhododendron irroratum.

Key words: species diversity, Rhododendron forest, community characteristics, community stability, Baili Rhododendron scenic area

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