山西太行山森林群落物种多样性研究  

Species Diversity of Forest Community in Taihang Mountains of Shanxi

作　　者：刘丽艳 张峰[1] 秦浩[1,3] LIU Liyan;ZHANG Feng;QIN Hao(Institute of Loess Plateau,Shanxi University,Taiyuan 030006,China;Taiyuan Institute of Technology,Department of Environment and Safety,Taiyuan 030008,China;School of Statistics,Shanxi University of Finance and Economics,Taiyuan 030006,China)

机构地区：[1]山西大学黄土高原研究所,山西太原030006 [2]太原工业学院环境与安全工程系,山西太原030008 [3]山西财经大学统计学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2019年第3期673-681,共9页Journal of Shanxi University(Natural Science Edition)

基　　金：科技部科技基础性工作专项(2011FY110300,2015FY110300)

摘　　要：采用物种丰富度指数R、Simpson指数λ、Shannon-Weiner指数H’和Pielou均匀度指数Jsw分析了山西太行山森林群落物种组成、群落不同层次物种多样性,以及多样性的环境解释。结果表明:1)40个样地的201种植物隶属于58科151属,群落垂直结构明显;2)多样性指数在群落各层中的变化情况总体上表现为R在草本层中变幅较大,而λ和H’在乔木层和灌木层变化幅度较大,均匀度指数在草本层变化不明显,意味着草本分布较均匀;3)影响物种多样性的生态因子主要是坡向和坡度。Based on the 40 plots from the field,the species diversity of the plant communities in TaihangMountains,Shanxi were studied by using the species richness index(R),Simpson index(λ),Shannon-Weiner index(H′)and pielou evenness index(Jsw).The relationship between community diversity and environmental factors was analyzed stepwise regression in order to reveal the formation of community distribution pattern.The results showed that:1)the 201 species belongs to 151 genera and 58 families,and the vertical structure of the community was obvious;2)the variation of four diversity indices of the community in arbor layer,shrub layer,herbaceous layer and the whole community showed that Rchanged greatly in herbaceous layer,whileλand H′changed greatly in tree layer and shrub layer,and evenness index also changed steadily in herbaceous layer,indicating that herbaceous distribution was more uniform in community;3)the results from stepwise regression indicated that the species diversity was mainly affected by slope direction and slope.

关 键 词：物种多样性 太行山 环境因子 多元回归 

分 类 号：O436[机械工程—光学工程]