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植物研究 ›› 2021, Vol. 41 ›› Issue (3): 380-386.doi: 10.7525/j.issn.1673-5102.2021.03.008

• 研究报告 • 上一篇    下一篇

米槁群落主要物种资源利用特征分析

刘济明, 刘欢, 李丽霞   

  1. 贵州大学林学院,贵州大学森林生态研究中心,贵阳 550025
  • 收稿日期:2020-04-19 出版日期:2021-05-20 发布日期:2021-03-24
  • 作者简介:刘济明(1963—),男,博士,教授,主要从事森林生态学方面的研究。
  • 基金资助:
    贵州省林业厅重大项目“喀斯特地区特色经济林树种培育与示范”(黔林科合[2010]重大04号);贵州省科技计划“米槁种源筛选及菌根化育苗技术研究”(黔科合支撑[2019]2774号)

Resource Utilization Characteristics of Dominant Species in Cinnamomum migao Community

Ji-Ming LIU, Huan LIU, Li-Xia LI   

  1. College of Forestry,Guizhou University,Forest Ecology Research Center of Guizhou University,Guiyang 550025
  • Received:2020-04-19 Online:2021-05-20 Published:2021-03-24
  • About author:LIU Ji-Ming(1963—),male,doctor,professor, major in forest ecology.
  • Supported by:
    A Major Project of The Department of Forestry of Guizhou Province“tree species cultivation and demonstration of characteristic economic forest in karst region”(Guizhou Forestry Department[2010] No.04);Guizhou Provincial Science and Technology Plan “research on ricci germplasm screening and mycorrhizal seedling cultivation technology”(guizhou hezhen[2019] No.2774)

摘要:

开展米槁群落物种生态位研究,可了解米槁群落物种对资源的利用特征,为米槁的保护与管理提供科学依据。基于贵州省米槁天然林群落的实际调查数据,通过生态位宽度、生态位重叠指数,分析该群落主要物种的资源利用特征。群落中米槁(Cinnamomum migao)、杜茎山(Maesa japonica)、菝葜(Smilaxchina)的生态位宽度最大,在群落中处于明显优势地位,具有较强竞争力和资源利用能力;生态位宽度越大的物种间生态位重叠越大,但在相同或相似环境条件下,生态位宽度值小的种对也会拥有较高的生态位重叠;米槁群落主要物种间的生态位重叠指数偏低,说明物种间对资源利用的相似性较低,物种的生态位分化明显,竞争不激烈,群落结构较为稳定,物种间能够较好地相互共存。

关键词: 米槁, 资源利用, 重要值, 生态位宽度, 生态位重叠

Abstract:

To illuminate the niche of Cinnamomum migao community, to understand the utilization characteristics of the community for protecting and managing C.migao, the resource utilization characteristics of the main species in the community were analyzed, with the survey data of C.migao natural forest community in Guizhou Province. C.migao, Maesa japonica and Smilax china, with the largest niche breadths, dominated the community with strong competitiveness and resource utilization ability; the greater the niche breadth was, the greater the niche overlap was. Yet under the same or similar environmental conditions, the species pairs with smaller niche breadth value could also have relatively high niche overlap. The low niche overlap index of main species in C.migao community indicated that the similarity of resource utilization among species was low, the niche of species was clearly differentiated without fierce competition, the community structure was relatively stable, and the species could coexist well.

Key words: Cinnamomum migao, utilization of resources, important value, niche breadth, niche overlap

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