鹞落坪自然保护区落叶阔叶林群落特征  

Community Characteristics of Deciduous Broad-Leaved Forest in Yaoluoping National Nature Reserve

作　　者：赵昕 常锦利 周守标[1,2,3] 王晓英 王智[4] ZHAO Xin;CHANG Jin-li;ZHOU Shou-biao;WANG Xiao-ying;WANG Zhi(College of Life Sciences,Anhui Normal University,Wuhu 241000,China;College of Environmental Science and Engineering,Anhui Normal University,Wuhu 241003,China;Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation,Wuhu 241003,China;Nanjing Institute of Environmental Sciences,Ministry of Ecology and Environment,Nanjing 210042,China)

机构地区：[1]安徽师范大学生命科学学院,安徽芜湖241000 [2]安徽师范大学环境科学与工程学院,安徽芜湖241003 [3]安徽省水土治理与修复实验室,安徽芜湖241003 [4]环境保护部南京环境科学研究所,江苏南京210042

出　　处：《安徽师范大学学报（自然科学版）》2020年第3期258-263,共6页Journal of Anhui Normal University(Natural Science)

基　　金：安徽省自然科学基金项目(1908085QD150).

摘　　要：为了研究大别山腹地山地落叶阔叶林群落特征,在鹞落坪国家级自然保护区建立的11.56ha(340m×340m)的动态监测样地内,对胸径(DBH)≥1cm的所有乔木和灌木进行了详细的调查和监测。分析了群落树种组成、径级结构、垂直结构、树种空间分布、种-面积格局和树种Shannon-Wiener指数、Simpson指数、Pielou均匀度指数,运用GIS软件分析重要值前12位树种的空间分布规律。研究结果表明:样地落叶阔叶林群落内共有乔木灌木35科57属103种;重要值前4位的树种为茅栗(Castanea seguinii)、鹅耳枥(Carpinus turczaninowii)、黄山松(Pinus taiwanensis)、四照花(Dendrobenthamia japonica var.chinensis);群落中小径木较多,平均胸径为8.04cm,整体径级结构呈倒J型;群落乔木层分为两个亚层,茅栗、白檀(Symplocos paniculata)、映山红(Rhododendron simsii)等在第Ⅰ亚层中占优势,第Ⅱ亚层茅栗、灯台树(Bothrocaryum controversum)、小叶白辛树(Pterostyrax corymbosu)、黄山松占优势;重要值前12位的物种均表现出一定程度的集群分布,且聚集强度随调查范围的扩大而减少。In order to explore the community characteristics of deciduous broad-leaved forests in Yaoluoping National Nature Reserve,a dynamic monitoring plot of 11.56ha(340m×340m)was established,and arbors and shrubs with a DBH of≥1cm were investigated.The community composition,diameter structure,vertical structure,spatial distribution of species,species-area pattern and species Shannon-Wiener index,Simpson index,Pielou uniformity index,and the spatial distribution of the top 12 species of important values analyzed by GIS software.The results showed that:(1)the community included 103 species of 35 families and 57 genera of arbors and shrubs.(2)The top 12 important values species were Castanea seguinii,Carpinus turczaninowii,Pinus taiwanensis,and Dendrobenthamia japonica var.chinensis.(3)There are many small-diameter woods with an average DBH of 8.04cm.(4)The overall diameter-grade structure is inverted J-shaped.(5)The arbor layer is divided into two sub-layers,Castanea seguinii,Symplocos paniculata,Rhododendron simsii are dominant in the first sub-layer,Castanea seguinii,Bothrocaryum controversum,Pterostyrax corymbosu,and Pinus taiwanensis in the second sub-floor.(6)The top 12 species of important values all showed a certain degree of cluster distribution,and the aggregation intensity decreased with the expansion of the survey scope.

关 键 词：鹞落坪自然保护区 落叶阔叶林 群落组成 群落特征 空间分布格局 

分 类 号：S71[农业科学—林学]