| 基于分层的典型中亚热带天然阔叶林分局部生物多样性 |
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| 引用本文： | 马志波,黄清麟,庄崇洋,郑群瑞,王宏.基于分层的典型中亚热带天然阔叶林分局部生物多样性[J].生态学报,2018,38(6):2163-2169. |
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| 作者姓名： | 马志波 黄清麟 庄崇洋 郑群瑞 王宏 |
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| 作者单位： | 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;建瓯万木林省级自然保护区管理处; |
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| 基金项目： | 国家自然科学基金项目（31370633） |
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| 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。
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| 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 |
| 收稿时间： | 2016/12/7 0:00:00 |
| 修稿时间： | 2017/10/26 0:00:00 |
Local biodiversity of typical, natural, broad-leaved forest stands in mid-subtropical zone: based on tree-layer stratification |
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| MA Zhibo,HUANG Qinglin,ZHUANG Chongyang,ZHENG Qunrui and WANG Hong.Local biodiversity of typical, natural, broad-leaved forest stands in mid-subtropical zone: based on tree-layer stratification[J].Acta Ecologica Sinica,2018,38(6):2163-2169. |
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| Authors: | MA Zhibo HUANG Qinglin ZHUANG Chongyang ZHENG Qunrui and WANG Hong |
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| Institution: | Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry;Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration, Beijing 100091, China,Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry;Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration, Beijing 100091, China,Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry;Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration, Beijing 100091, China,Administrative Office of Wanmulin Nature Reserve, Jian''ou 353105, China and Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry;Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration, Beijing 100091, China |
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| Abstract: | 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. |
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| Keywords: | mid-subtropical natural broad-leaved forest small spatial scale Wangmulin Reserve local biodiversity neutral effect sub-layer of tree layer |
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