| 基于分层的典型中亚热带天然阔叶林的种间关联性 |
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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的种间关联性[J].北京林业大学学报,2017,39(12):10-16. |
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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： | 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 |
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| 摘 要： | 亚热带天然常绿阔叶林群落的乔木层普遍具有自然成层特征，通过划分林层，研究了两个典型中亚热带天然阔叶林群落各层组成种间的种间联结，以揭示各层林木间的关系。结果表明:两个群落树种丰富，乔木层分别有65和53个树种；乔木层都可划分为受光层和非受光层两个亚层，受光层对群落起控制作用；两个群落的受光层所有树种都是总体负关联，导致了乔木层的总体负关联；无论是乔木层还是两个亚层，各层林木均可结成数量可观的成对组合，但大多数树种两两之间关系松散或相互独立，只有个别树种与其他树种有显著的正或负关联，表明调查群落主要受随机过程控制。在生物多样性保护实践中需要关注猴欢喜和新木姜子，因为在包含这两个种的显著关联的种对中，前者与其他树种的均为负关联，后者则以正关联为主。
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| 关 键 词： | 中亚热带 天然阔叶林 乔木层 成层性 种间联结 |
| 收稿时间： | 2017-05-16 |
Study on interspecific associations of typical mid-subtropical natural broadleaved forest based on stratification |
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| Institution: | 1.Research Institute of Forest Resource Information Techniques of Chinese Academy of Forestry, Key Laboratory of Forestry Remote Sensing and Information Technology of State Forestry Administration, Beijing, 100091, P. R. China2.Administrative Office of Wanmulin Provincial Nature Reserve, Jian'ou, Fujian, 353105, P. R. China |
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| Abstract: | Stratification of arbor layer is popular in subtropical natural evergreen broadleaved forests. Two typical natural broadleaved forest communities in mid-subtropical zone were studied to reveal the interspecific associations of arbor layer and its sub-layers. There were 65 and 53 species in the arbor layer of the two communities, respectively. Arbor layer of the two communities could be divided into two sub-layers, light receiving layer ( LRL ) and non-light receiving layer ( NLRL ) , and LRL dominated the communities. All species in LRL of two communities were totally negative association, which resulted in the totally negative associationin of arbor layer. Whether arbor layer or the two sub-layers,species in each layer could form numerous combinations in pair-wise approach, but most species tended to be independent with each other and few species were significantly positive or negative associated with other species, suggesting that random processes dominated the two communities. Attention should be paid to Sloanea sinensis and Neolitsea aurata in biodiversity protection practice since the former was always negatively associated with other species, while the later was mainly positively associated with other species among those species pairs with significant association. |
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| Keywords: | mid-subtropical zone natural broadleaved forest arbor layer stratification interspecific association |
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