大岗山常绿阔叶林不同生活型树种多度分布格局  

Distribution of species abundance of different plant life forms in the evergreen broadleaf forest in Dagang Mountain

作　　者：白浩楠 牛香[2,3,4] 王兵 宋庆丰[2,3,4] 龙文兴 BAI Haonan;NIU Xiang;WANG Bing;SONG Qingfeng;LONG Wenxing(College of Plant Protection,Hainan University,Haikou,Hainan 570228;Research Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry Sciences,Beijing 100091;Key Laboratory of Forest Ecology and Environment,National Forestry and Grassland Administration,Beijing 100091;Dagangshan National Key Experimental Station for Forest Ecosystem,Fenyi,Jiangxi 336606)

机构地区：[1]海南大学植物保护学院,海口570228 [2]中国林业科学研究院森林生态环境与保护研究所,北京100091 [3]国家林业和草原局森林生态环境重点实验室,北京100091 [4]江西大岗山森林生态系统国家野外科学观测研究站,江西分宜336606

出　　处：《热带生物学报》2021年第1期49-56,共8页Journal of Tropical Biology

基　　金：中央级公益性科研院所基本科研业务费专项:大岗山杉木种源林水文功能性状与水分利用效率研究(CAFYBB2020ZE003);江西大岗山森林生态系统国家定位观测研究站运行(2020132003)。

摘　　要：为了揭示江西大岗山常绿阔叶林内常绿和落叶物种的多度分布格局,以及主导两类生活型物种群落构建的主要生态学过程,建立2 hm2长期固定样地并进行群落生态学调查。使用累积经验分布函数量化两类生活型物种的分布特征,利用6种物种分布模型进行数据拟合,采用Akaike信息准则(AIC)和Kolmogorov-Smirnov检验拟合效果。结果表明,在大岗山常绿阔叶林内,常绿树种重要值前3位分别是丝栗栲(Castanopsis fargesii)、青冈(Cyclobalanopsis glauca)、鹿角杜鹃(Rhododendron latoucheae);落叶物种重要值前3位分别是赤杨叶(Alniphyllum fortunei)、山乌桕(Sapium discolor)和木油桐(Vcmicia Montana)。两类生活型物种多度分布曲线均呈现出一定的S形,两者之间并无显著差异,除了生态位模型外,纯统计模型和中性理论模型均可接受。中性过程对两类生活型物种的物种多度分布格局形成有重要影响。In order to reveal abundance distribution patterns of evergreen and deciduous trees in the same community and the major ecologic process of the community establishment by plant species of two leading plant life forms,a community ecological survey was conducted at the permanent plot with an area of 2 ha at the broadleaf evergreen forest in Dagan Mountain,Jiangxi Province.The distribution features of the plants of two different life forms were quantified by using the cumulative empirical distribution function,and fitted by using 6 distribution models.The goodness of fit of the 6 models were tested by using Akaike information criterion(AIC)and Kolmogorov-Smimov Test.The results showed that the top three evergreen tree species arranged by the importance value are Castanopsis fargesii,Cyclobalanopsis glauca and Rhododendron latoucheae in the broadleaf evergreen forest in Dagang Mountain,while the three deciduous tree species arranged by the importance value are Alniphyllum fortune,Sapium discolor and Vernicia montana.The distribution curves of the plant species of the two life forms in Dagang Mountain were all in a S shape and were not significantly different.The pure statistical model and the neutral theoretical model except the niche models were acceptable.Neutral processes play an important role in the formation of species-abundance distribution patterns of two plant life forms.

关 键 词：物种多度分布 模型拟合 生态位模型 江西大岗山 

分 类 号：S718.5[农业科学—林学]