雷公山自然保护区不同海拔段水青冈群落结构特征研究  

Study on community structure characteristics of Fagus longipetiolata at different altitudes in Leigongshan Nature Reserve

作　　者：郑德谋 李登江 余德会 叶荣欢 吴必锋 张夏军 ZHENG Demou;LI Dengjiang;YU Dehui;YE Ronghuan;WU Bifeng;ZHANG Xiajun(Leigongshan National Nature Reserve Administration,Leishan 557100,Guizhou,China)

机构地区：[1]贵州雷公山国家级自然保护区管理局,贵州雷山557100

出　　处：《湖南林业科技》2023年第2期26-32,40,共8页Hunan Forestry Science & Technology

基　　金：贵州省林业厅项目(黔林科合[2021]16号)。

摘　　要：为了解雷公山自然保护区不同海拔段水青冈群落的结构特征,分别在雷公山自然保护区不同海拔段的水青冈群落中设置样地和样方,分析其物种组成、重要值和物种多样性指数等。结果表明:雷公山自然保护区水青冈群落共有85科153属243种植物,植物种数表现为低海拔段的>中海拔段的>高海拔段的,含单属单种科所占的比例表现为中海拔段的>低海拔段的>高海拔段的;不同海拔段水青冈群落极不相似,物种组成差异较大。雷公山自然保护区水青冈主要分布在海拔1100~1566 m范围的中、高海拔段;海拔与Simpson优势度指数D、Shannon-Wiener多样性指数He′和Pielou均匀度指数Je均呈不显著负相关,Simpson优势度指数D、Shannon-Wiener多样性指数He′和Pielou均匀度指数Je相互影响;物种均匀度指数Je对物种优势度指数D的贡献率较物种多样性指数He′的更高。In order to understand the structural characteristics of Fagus longipetiolata community at different altitudes in Leigongshan Nature Reserve,sample plots and quadrats were set up in different altitudes of F.longipetiolata community in Leigongshan Nature Reserve to investigate its species composition,importance value and species diversity index.The results showed that there were 243 species belonging to 153 genera of 85 families in the community of F.longipetiolata in Leigongshan Nature Reserve.The number of species in the community of F.longipetiolata in different altitudes was shown as the low altitude section>middle altitude section>hight altitude section;In Leigongshan Nature Reserve,F.longipetiolata community is mainly distributed in the middle and>high altitude ranges from 1100 to 1566m;Altitude had no significant negative correlation with Simpson dominance index D,Shannon Wiener diversity index He'and Pielou evenness index Je.Simpson dominance index D,Shannon Wiener diversity index He′and Pielou evenness index Je interacted.Species evenness index contributes more to species dominance index than diversity index He′.

关 键 词：水青冈 群落结构 海拔 重要值 物种多样性 雷公山自然保护区 

分 类 号：S792.16[农业科学—林木遗传育种] Q948[农业科学—林学]