文献类型：期刊文献

中文题名：基于分层的典型中亚热带天然阔叶林分局部生物多样性

英文题名：Local biodiversity of typical,natural,broad-leaved forest stands in midsubtropical zone:based on tree-layer stratification

作者：马志波[1] 黄清麟[1] 庄崇洋[1] 郑群瑞[2] 王宏[1]

第一作者：马志波

机构：[1]中国林业科学研究院资源信息研究所国家林业局林业遥感与信息技术重点实验室;[2]建瓯万木林省级自然保护区管理处

年份：2018

卷号：38

期号：6

起止页码：2163-2169

中文期刊名：生态学报

外文期刊名：Acta Ecologica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金项目(31370633)

语种：中文

中文关键词：中亚热带天然阔叶林;小空间尺度;万木林保护区;局部生物多样性;中性作用;乔木层的亚层

外文关键词：mid-subtropical natural broad-leaved forest; small spatial scale; Wangmulin Reserve; local biodiversity;neutral effect; sub-layer of tree layer

分类号：Q16

摘要：选择福建万木林保护区内两块典型中亚热带天然阔叶林样地为对象,按分层和不分层两种情形,研究了小尺度(<20m)范围内各组成树种的单物种-面积关系(individual species-area relationship,ISAR),以探讨局部生物多样性格局及其维持机制。结果表明,两个群落的乔木层都可以划分出受光层和非受光层两个亚层。以受光层林木为圆心进行ISAR分析,发现在小尺度范围大多数受光层林木为局部生物多样性的中性种,只有个别树种在个别尺度上有显著的促进或排斥作用。研究途径避免了对非随机作用在维持局部生物多样性中的相对重要性的高估。不分层时,乔木层内同样以中性树种为主。研究结果支持小尺度范围内调查的典型中亚热带天然阔叶林的物种多样性由中性作用主导的结论。
The object of this study was to determine the role of species in maintaining local tree diversity and,thereby,identify processes that structure and maintain the community biodiversity of typical,natural,mid-subtropical broad-leaved forests. Two typical forest sample plots located in Wanmulin Reserve,Fujian Province,were investigated. The individual species-area relationship（ ISAR） analysis method was used to investigate two scenarios,without or with tree layer stratification. The results show that the tree layers of both plots could be divided into the light receiving layer（ LRL） and non-light receiving layer（ NLRL）. Overestimation of the relative importance of non-random effects could be avoided when specifying trees distributed in the LRL as focal species in ISAR analysis. This implies that the tree diversity of the two studied forest communities is structured by neutral factors because most species in the LRL or tree layer were neutral species of the local tree diversity.