| 贵州雷公山秃杉种群格局的分形特征——信息维数 |
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| 引用本文： | 李性苑,李旭光,李东平,周江菊,刘伦沛. 贵州雷公山秃杉种群格局的分形特征——信息维数[J]. 安徽农业科学, 2007, 35(33): 10660-10661 |
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| 作者姓名： | 李性苑 李旭光 李东平 周江菊 刘伦沛 |
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| 作者单位： | 凯里学院生物科学技术系,贵州凯里,556000;西南师范大学生命科学院,重庆,400715;三峡库区生态环境教育部重点实验室,重庆,400715 |
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| 基金项目： | 贵州省教育厅黔教科(2005225)，凯里学院基金项目(20-05YB03) |
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| 摘 要： | 应用分形理论中的信息维数探讨了贵州雷公山秃杉种群格局的分形特征。结果表明:秃杉种群的格局具有分形特征。5个样地的秃杉种群的信息维数大小依次为:Q5(1.428 0)>Q4(1.002 7)>Q3(0.828 3)>Q2(0.772 5)>Q1(0.715 9),这种差异反映了秃杉种群在各群落中更新状况的差异。信息维数揭示了秃杉种群格局强度的尺度变化程度和种群个体分布的非均匀性,适用于秃杉种群分布格局分形特征的定量描述。
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| 关 键 词： | 秃杉 信息维数 种群格局 格局强度 尺度 |
| 文章编号： | 0517-6611(2007)33-10660-02 |
| 修稿时间： | 2007-06-25 |
Information Dimension Fractal Properties of the Spatial Pattern of Taiwania flousiana Gaussen Population in Leigong Mountain of Guizhou |
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| LI Xing-yuan. Information Dimension Fractal Properties of the Spatial Pattern of Taiwania flousiana Gaussen Population in Leigong Mountain of Guizhou[J]. Journal of Anhui Agricultural Sciences, 2007, 35(33): 10660-10661 |
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| Authors: | LI Xing-yuan |
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| Abstract: | The fractal properties of spatial pattern of Taiwania flousiana Gaussen population in Leigong Mountain of Guizhou were studied with information dimension of fractal theory.The results showed that distribution pattern of Taiwania flousiana Gaussen population had fractal properties.The order of information dimension of Taiwania flousiana Gaussen population in five community-types were Q5(1.428 0)>Q4(1.002 7)>Q3(0.828 3)>Q2(0.772 5)>Q1(0.715 9).The variation of information dimension reflected the differences of Taiwania flousiana Gaussen population regeneration condition in different community-types.The information dimension quantified the scale degree of pattern intensity and disclosed the unevenness of individual distribution.Information dimension was suitable for quantitatively describing the fractal characteristics of distribution pattern of Taiwania flousiana Gaussen population. |
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| Keywords: | Taiwania flousiana Gaussen Information dimension Population pattern Pattern intensity Scaling |
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