臭冷杉自然保护区臭冷杉(Abies nephrolepis)林林下植物多样性特征  

Understory Plant Diversity of Abies nephrolepis Forest in Abies nephrolepis Nature Reserve

作　　者：陈晓江 聂国春 郑润林 李佳佳 郑庆荣[4] 杨虎义 CHEN Xiaojiang;NIE Guochun;ZHENG Runlin;LI Jiajia;ZHENG Qingrong;YANG Huyi(De partment of Biology,Xinzhou Nor mal University,Xinzhou 034000,China;Shanxi Provincial Nature Reserve Adm inistration of Abies nephrolepis,Xinzhou 034000,China;Kuantan Forest Farm,State Forestry Ad m inistration of Wutai Mountain,Xinzhou 034300,China;De partment of Geogra phy,Xinzhou Nor mal University,Xinzhou 034000,China)

机构地区：[1]忻州师范学院生物系,山西忻州034000 [2]山西臭冷杉省级自然保护区管理局,山西忻州034000 [3]山西省五台山国有林管理局宽滩林场,山西忻州034300 [4]忻州师范学院地理系,山西忻州034000

出　　处：《内蒙古大学学报（自然科学版）》2022年第6期629-635,共7页Journal of Inner Mongolia University：Natural Science Edition

基　　金：博士科研启动项目(047/00000415);中央引导地方科技发展资金项目(2020ZY0026);山西省高等学校科技创新项目(2019L0839)。

摘　　要：在山西臭冷杉自然保护区的臭冷杉林区采用固定样地法,于1800~1900m、1900~2000m、2000~2100m、2100~2200m和2200~2300m五个海拔梯度上设置了5个样地,对自然保护区臭冷杉林林下植物物种组成及多样性进行研究,为自然保护区臭冷杉林的可持续发展提供科学的数据支持。研究表明:臭冷杉林林下植物共有24科40属43种,其中物种数较多的科为菊科(Compositae)、蔷薇科(Rosaceae)、毛茛科(Ranunculaceae)、豆科(Fabaceae)和伞形科(Umbelliferae);5个样地丰富度指数R0最大值为18(A1样地),最小值为10(A4样地);5个样地的Shannon-Wiener指数和Simpson指数均表现为A5>A4>A2>A1>A3,Pielou均匀度指数表现为A5>A4>A2>A3>A1;5个样地的差异性表现为:Shannon-Wiener指数,A4样地与A2样地之间差异性极显著,与A1、A3样地之间差异性显著,其他样地之间均无显著性差异;Simpson指数,A4样地与A1、A2样地之间差异性极显著,与A3样地之间差异性显著,其他样地之间均无显著性差异;Pielou均匀度指数,A1样地与A4样地之间差异性极显著,与A5、A3样地之间存在差异性显著,其他样地之间均无显著性差异。Fixed plot method was used to set five sample plots at five elevation gradients of 1800-1900 m,1900-2000 m,2000-2100 m,2100-2200 m and 2200-2300 m in the forest region of Abies nephrolepis in Shanxi Abies nephrolepis Nature Reserve.In order to provide scientific data support for the sustainable development of Abies nephrolepis forest in nature reserve,the species composition and diversity of understory plants were studied.The results showed as follows:There were 43 understory plants species,belonging to 40 genera and 24 families.The five families with most species were Compositae,Rosaceae,Ranunculaceae,Fabaceae and Umbelliferae.The maximum richness index(R0)of the five plots was 18(A1 plot)and the minimum was 10(A4 plot).The order of Shannon-wiener index and Simpson index was A5>A4>A2>A1>A3,and the order of Pielou evenness index was A5>A4>A2>A3>A1.Shannon-wiener index showed very significant differences between A4 plot and A2 plot,and between A1 and A3.Simpson index in A4 plot was significantly different from Simpson index in A1 plot,A2 and A3 plot.Pielou evenness index showed that significant differences between A1 plot and A4 plot,and between A5 plot and A3 plot.

关 键 词：自然保护区 臭冷杉林 植物群落 多样性 

分 类 号：S793.3[农业科学—林木遗传育种]