| Fractal Characteristics of the Distribution Pattern of Mangrove Bruguiera Gymnorrhiza Populations in Southern China |
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| 作者姓名： | 梁士楚 董鸣 王伯荪 |
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| 作者单位： | [1]LaboratoryofQuantitativeVegetationEcology,InstituteofBotany,ChineseAcademyofSciences,Beijing100093,China [2]SchoolofLifeScienceZhongshanUniversityGuangzhou510275,Guangdong,China |
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| 基金项目： | The paper is supported by grants from the NSFC (No. 39825106 and 39860023). |
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| 摘 要： | The distribution patterns of mangrove Bruguiera gvmnorrhiza populations in southern China are analyzed using the box-counting method of fractal theory.The patterns of B.gymnorrhiza populations could be thought of as fractals as they exhibit self-similarity within the range of seale considered.Their fractal dimensions are not integer but fractional.ranging from 1.04 to 1.51.The unoccupied dimensions change from 0.49 to 0.96.The combined conditions of population density.pattern type and aggregation intensity together influence the values of fractal dimensions of patterns.The box counting is a useful and efficient method to investigate the complexity of patterns.Fractal dimension may be a most desirable and appropriate index for quantifying the horizontal spatial microstructure and fractal behaviors of patterns over a certain range of scales.
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| 关 键 词： | 不规则碎片形 红树林 种群密度 模拟 索引 |
Fractal Characteristics of the Distribution Pattern of Mangrove Bruguiera Gymnorrhiza Populations in Southern China |
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| Liang Shichu.Fractal Characteristics of the Distribution Pattern of Mangrove Bruguiera Gymnorrhiza Populations in Southern China[J].Marina Science Bulletin,2004,6(2):90-96. |
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| Authors: | Liang Shichu |
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| Abstract: | The distribution patterns of mangrove Bruguiera gymnorrhiza population s in southern China are analyzed using the box-counting method of fractal theory. The patterns of B. gymnorrhiza populations could be thought of as fractals as they exhibit self-similarity within the range of scale considered. Their fractal dimensions are not integer but fractional, ranging from 1.04 to 1.51. The unoccupied dimensions change from 0.49 to 0.96. The combined conditions of population density, pattern type and aggregation intensity together influence the values of fractal dimensions of patterns. The box counting is a useful and efficient method to investigate the complexity of patterns. Fractal dimension may be a most desirable and appropriate index for quantifying the horizontal spatial microstructure and fractal behaviors of patterns over a certain range of scales. |
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| Keywords: | pattern fractal fractal dimension ecological unoccupied dimension Bruguiera gymnorrhiza |
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