| 云贵鹅耳枥种群分布格局的分形特征 |
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| 引用本文： | 梁士楚.云贵鹅耳枥种群分布格局的分形特征[J].武汉植物学研究,2001,19(4):263-268. |
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| 作者姓名： | 梁士楚 |
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| 作者单位： | 广西红树林研究中心, |
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| 基金项目： | 国家自然科学基金资助项目(39860023)和广西自然科学匹配基金项目(桂科配9912011). |
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| 摘 要： | 应用分形理论中的计盒维数和信息维数探讨了贵阳喀斯特山地贵鹅耳枥种群分布格局的分形特征。结果表明，贵鹅耳枥种群的分布格局具有分形特征，其计盒维数为1．1853－1．7419，信息维数为1．1961－1．7051。集群型的贵鹅耳枥种群的计盒维数和信息维数均比随机型的高。计盒维数定量地反映了贵鹅耳枥种群占据生态空间的能力，信息维数则揭示了该种群格局强度的尺度变化程度和表征了种群个体分布的非均匀性。这两种维数方法都适用于贵鹅耳枥种群分布格局分形特征的定量描述。
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| 关 键 词： | 喀斯特山地 云贵鹅耳枥种群 分布格局 计盒维数 信息维数 |
| 文章编号： | 1000-470(2001)04-0263-06 |
| 收稿时间： | 2000-12-4 |
| 修稿时间： | 2001-4-14 |
Fractal Characteristics of Distribution Pattern of Carpinus pubescens Population |
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| LIANG Shi-Chu.Fractal Characteristics of Distribution Pattern of Carpinus pubescens Population[J].Journal of Wuhan Botanical Research,2001,19(4):263-268. |
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| Authors: | LIANG Shi-Chu |
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| Institution: | Guangxi Mangrove Research Center, Beihai 536007, China |
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| Abstract: | The fractal characteristics of distribution pattern of Carpinus pubescens population in the karst mountain of Guiyang were studied by using the box dimension and information dimension of fractal theory.The results showed that the distribution pattern of C.pubescens population possesses fractal characteristics;the box dimensions ranged from 1 1853 to 1 7419,and the information dimensions from 1 1961 to 1 7051.The box dimension and information dimension of the clumped population are higher than those of the random population.The box dimension reflects the spatial occupation degree of the population,while the information dimension quantifies the scale variation degree of pattern intensity and discloses the unevenness of individual distribution.It has been found that the two fractal methods are suitable for quantitatively describing the fractal characteristics of distribution pattern of C.pubescens population. |
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| Keywords: | Karst mountain Carpinus pubescens population Distribution pattern Box dimension Information dimension |
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