Research on Species Diversity Characteristics of Chinese Endemic Plant Populus shanxiensis  

中国特有植物青毛杨群落物种多样性特征研究(英文)

作　　者：孙东辉[1] 郭东罡[1] 上官铁梁[1] 王振军 

机构地区：[1]山西大学环境与资源学院,山西太原030006 [2]山西黑茶山国家级自然保护区管理局,山西吕梁036300

出　　处：《Agricultural Science & Technology》2011年第11期1744-1748,共5页农业科学与技术（英文版）

基　　金：Supported by the Fund of Investigation and Evaluation of Biological Diversity in Shanxi Province of Ministry of Environmental Protection~~

摘　　要：[Objective] This study aimed at researching the species diversity of Populus shanxiensis community in Heichashan Mountain. [Method] Based on sampling methods, investigation in sampling spots was carried out according to the important indicator, the abundance index （N0）, Simpson index （λ）, Shannon-Weiner index （H＇） and homogeneity index （E1 and E5） were used for analysis. [Results] Species diversity index of Populus shanxiensis community was not only depended on the species compositions of communities, but also closely related to the important value of species. The order of abundance index and diversity index in each layer of Populus shanxiensis community was herb layershrub layertree layer, and the abundance index was positively related to the diversity index; while the variation trend of community homogeneity index was different from that of abundance index and diversity index, and the homogeneity had shown negative correlation with the dominance. [Conclusion] In this study, the growth status and conditions of Populus shanxiensis were further understood and researched, which had laid theoretical foundation for protecting the endangered species and provided basic information for the future studies of endangered species and related disciplines.[目的]研究山西黑茶山青毛杨群落物种多样性。[方法]采用样方法进行样地调查,依据重要值指标,应用丰富度指数(N0)、Simpson指数(λ)、Shannon-Weiner指数(H')和均匀度指数(E1和E5)进行分析研究。[结果]青毛杨群落物种多样性指数不仅取决于群落的种类组成,而且与种间的重要值配置有密切关系。青毛杨群落内各层物种丰富度指数和多样性指数的大小为草本层>灌木层>乔木层;丰富度指数与多样性指数呈正相关关系,而群落均匀度指数的变化与丰富度指数和多样性指数的变化趋势有所不同,且均匀度与优势度呈负相关关系。[结论]进一步了解和认识了青毛杨的生长现状及生长环境,从而为保护这一濒危物种奠定一定的理论基础,同时也为今后濒危物种及相关学科的研究提供基础资料。

关 键 词：Plant community Species diversity Community structure Heichashan Mountain Populus shanxiensis 

分 类 号：S792.11[农业科学—林木遗传育种]