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›› 2013, Vol. 49 ›› Issue (5): 36-42.doi: 10.11707/j.1001-7488.20130506

• 论文 • 上一篇    下一篇

三峡库区栲属群落主要乔木种群的种间联结性

程瑞梅1, 王瑞丽1, 刘泽彬1, 封晓辉1,2, 王晓荣1,3, 肖文发1   

  1. 1. 中国林业科学研究院森林生态环境与保护研究所 国家林业局森林生态环境重点实验室 北京 100091;2. 中国科学院遗传与发育生物学研究所农业资源研究中心 石家庄 050021;3. 湖北省林业科学研究院 武汉 430079
  • 收稿日期:2011-11-25 修回日期:2012-03-31 出版日期:2013-05-25 发布日期:2013-05-25
  • 通讯作者: 肖文发

Interconnection among Species of Dominant Tree Populations of Castanopsis Community in Three Gorges Reservoir Region

Cheng Ruimei1, Wang Ruili1, Liu Zebin1, Feng Xiaohui1,2, Wang Xiaorong1,3, Xiao Wenfa1   

  1. 1. Key Laboratory of Forest Ecology and Environment of State Forestry Administration Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry Beijing 100091;2. Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences Shijiazhuang 050021;3. Hubei Forestry Academy Wuhan 430079
  • Received:2011-11-25 Revised:2012-03-31 Online:2013-05-25 Published:2013-05-25

摘要: 对三峡库区栲属群落主要乔木种群的重要值、方差比率、χ2统计量、共同出现百分率PC和联结系数AC等种间联结性指标进行测定。结果表明: 小叶栲是三峡库区栲属群落常绿阔叶林的建群种; 三峡库区栲属群落19个主要种群的总体种间关联性呈不显著负相关,反映了该群落处于不稳定的演替阶段; 19个优势种群构成的171个种对中, 12个种对具有显著正相关,7个种对具有显著负相关,而绝大多数种的联结关系未达到显著水平,种对间的独立性相对较强。

关键词: 栲属群落, 种间联结, 乔木种群, 三峡库区

Abstract: Interconnection among the 19 dominant species, 171 species pairs in tree layer of Castanopsis community in Three Gorges Reservoir region was studied by using variance analysis, together with χ2 test, percentage co-occurrence (PC) and association coefficient (AC). The results indicated that Castanopsis carlesii var. spinulosa was the constructive species of Castanopsis community in Three Gorges Reservoir region. The overall associations between dominant species in the community were not significantly negative, suggesting that the Castanopsis community was not mature and in the phase of active succession. The χ2 test showed that among these 19 dominant species, 12 species pairs exhibited significantly positive association and 7 species pairs showed that significant negative association. However, most of the total 171 species pairs did not show significant interconnection, reflecting that the plant communities tended to distribute independently and still were in the unstable succession.

Key words: Castanopsis community, interspecific association, tree species, Three Gorges Reservoir region

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