野三关红椿天然群落物种多度分布分析

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英文篇名：Species Abundance Distribution of Natural Toona ciliata Community in Yesanguan of Badong County 作者：钟雄 ; 张敏 ; 尹茜 ; 蔡京勇 ; 汪洋 英文作者：ZHONG Xiong;ZHANG Min;YIN Xi;CAI Jingyong;WANG Yang;Yesanguan Forestry Station of Badong Forestry Bureau;Hubei Ecology Polytechnic College; 关键词：红椿天然群落 ; 物种多度分布 ; 生态位优先模型 ; 对数级数模型 ; 对数正态分布模型 ; 野三关 英文关键词：natural community of Toona ciliata;;species-abundance distribution;;niche preemption model;;logarithmic series model;;logarithm normal distribution model;;Yesanguan 中文刊名：LDGH 英文刊名：Forest Inventory and Planning 机构：野三关林业工作站;湖北生态工程职业技术学院; 出版日期：2018-06-15 出版单位：林业调查规划 年：2018 期：v.43;No.224 基金：湖北省科技厅公益性研究项目(40 2012DBA40001);; 湖北省教育厅科研项目(B20160555) 语种：中文; 页：LDGH201803012 页数：5 CN：03 ISSN：53-1172/S 分类号：69-73

摘要

植物多度分布是群落生态学和生物多样性研究的基础。应用生态位优先模型,对数级数模型和对数正态分布模型,对巴东县野三关红椿天然群落乔灌草层的多度分布进行拟合,研究红椿群落的物种多度分布和结构规律,并进行卡方(χ~2)检验,结果表明:3种模型均不能描述草本层物种多度分布,但均可以较好地拟合灌木层和乔木层的物种多度格局;对数正态分布模型既能反映物种的分布宽度,同时其检验对比值表明其拟合效果最佳,可以更加真实可靠地反映野三关红椿群落内在特征及群落结构特点。
        The species-abundance distribution pattern of plant community is the basis of the study of community ecology and biodiversity. Niche preemption model,logarithmic series model and logarithm normal distribution model were used to study the fitting models of species-abundance distribution patterns of herb,shrub-tree layers in the natural community of Toona ciliata in Yesanguan of Badong County,and Chisquare tests were used to verify the fitting effects of the models. The result showed that the three models could not satisfy the fitting of species-abundance distribution pattern of the herb layer but could better fit the patterns of the shrub layer and the tree layer. The lognormal distribution model could reflect the species dispersion of distribution and the Chi-square tests proved its best fitting effects,which could be more reliable to reflect the inherent characteristics and community structure of T. ciliata in Yesanguan.

引文

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