摘要
为探讨贵州野核桃(Juglans cathayensis)群落物种多样性与稳定性,选取贵州野核桃分布最集中的雷公山、宽阔水和佛顶山3个国家级自然保护区天然林进行典型群落研究。结果表明,3个群落共有维管束植物367种,隶属于111科231属。其中,雷公山群落物种最丰富,有90科160属211种,其次为宽阔水群落,有62科99属129种,最低为佛顶山群落,有59科94属124种;3个群落物种生活型均以高位芽植物为主。3个群落乔木层均以野核桃占明显优势;灌木层中,雷公山、佛顶山群落均以狭叶方竹(Chimonobambusa angustifolia)占绝对优势,宽阔水群落灌木层、草本层优势种均不明显。3个群落各层次间与群落内各层次间Margalef丰富度指数、Shannon-Wiener多样性指数、Pielou均匀度指数和Simpson指数总体差异不大,仅有Simpson指数与Margalef丰富度指数在个别层次间具有一定差异。群落稳定性表现为宽阔水群落>佛顶山群落>雷公山群落。
In order to explore species diversity and stability of Juglans cathayensis community in Guizhou,typical communities in natural forests of three national nature reserves in Guizhou,namely Leigongshan,Kuankuoshui and Fodingshan,where distributions of J.cathayensis were most concentrated,were selected for study.Results showed that there were 367 species of vascular plants in three communities,belonging to 231 genera and 111 families.Among them,Leigongshan community was the richest in species,with 211 species belonging to 160 genera and 90 families,followed by Kuankuoshui community with 129 species belonging to 99 genera and 62 families,and the lowest was Fodingshan community with 124 species belonging to 94 genera and 59 families.Life forms of three communities were dominated by phanerophytes.In three communities,arbor layers were dominated by J.cathayensis.In shrub layers,Chimonobambusa angustifolia was dominant species in Leigongshan and Fodingshan communities,while dominant species in shrub and herb layers of Kuankuoshui community were not obvious.Margalef richness indexes,Shannon-Wiener diversity indexes,Pielou evenness indexes and Simpson indexes of three communities were not significantly different among layers of three communities and layers within community.Only Simpson indexes and Margalef richness indexes were different in some layers.Order of community stability was Kuankuoshui community>Fodingshan community>Leigongshan community.
作者
吴华丽
杨焱冰
黎大顺
Wu Huali;Yang Yanbing;Li Dashun(Guizhou Forestry Information and Publicity Center,Guiyang,Guizhou 550001,China;Walnut Research Institute of Guizhou Province,Guiyang,Guizhou 550005,China;Guizhou Academy of Forestry,Guiyang,Guizhou 550005,China;Key Laboratory of Southwest Karst Mountain Biodiversity Conservation,National Forestry and Grassland Administration,Guizhou Academy of Forestry,Guiyang,Guizhou 550005,China;College of Forestry,Guizhou University,Guiyang,Guizhou 550025,China)
出处
《广西林业科学》
2023年第4期439-446,共8页
Guangxi Forestry Science
基金
贵州省科技计划项目(黔科合基础-ZK[2021]一般092)。
关键词
重要值
物种多样性
稳定性
国家级自然保护区
野核桃
important value
species diversity
stability
national nature reserve
Juglans cathayensis
