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植物研究 ›› 2000, Vol. 20 ›› Issue (3): 351-354.

• 论文 • 上一篇    下一篇

小叶章种群分布格局的分形特征Ⅱ信息维数与关联维数

倪红伟, 郭亚胜, 吴海一   

  1. 黑龙江省科学院自然资源研究所, 哈尔滨 150040
  • 收稿日期:2000-01-06 出版日期:2000-09-15 发布日期:2016-06-14
  • 作者简介:倪红伟(1964-),男,博士,主要从事湿地生态学、种群生态学、非线性生态模型及生态环境保护等领域的研究。
  • 基金资助:
    东北林业大学森林植物生态学开放研究实验室开放基金、黑龙江省科学院基金资助项目

THE FRACTAL CHARACTER OF THE DISTRIBUTION PATTERN OF DEYEUXIA ANGUSTIFOLIA POPULATION Ⅱ. Information Dimension and Correlation Dimension

NI Hong-wei, GUO Ya-sheng, WU Hai-yi   

  1. Institute of Nature Resources Heilongjiang Academy of Sciences, Harbin 150040
  • Received:2000-01-06 Online:2000-09-15 Published:2016-06-14

摘要: 应用分形理论中的信息维数(Information dimension)和关联维数(Carrelation dimension)研究了三江平原小叶章(Deyeuxia angustifolia)种群分布格局特征。结果表明:信息维数在5~9月分别为1.494、1.709、1.642、1.553、1.625,表明其结构较复杂,格局强度较高。关联维数则为1.662、1.861、1.766、1.750、1.807,说明小叶章个体空间相关程度较高。种内竞争强烈,对空间有较强的占据能力。两个维数的季节动态均自5月至6月达到极大值,而后逐渐下降,至9月略有回升。

关键词: 小叶章种群, 分布格局, 信息维数, 关联维数

Abstract: The distribution pattern of D. angustifolia in the Sanjiang plain has been described by using the information dimension and Correlation dimension of fractal theory. The result reveals that: the information dimension respectively was 1.494、1.709、1.642、1.553 and 1.625. Complex spatial distribution has been described. The correlation dimension respectively was 1.662、1.861、1.766、1.750 and 1.807 from May to September. There was high degree of individual spatial relatedness, sharp intraspecific competition and powerfully occupy space. Seasonal dynamic of two dimensions reached their maximum values beginning May to June then fell down. They were gone up again in September.

Key words: Deyeuxia angustifolia population, distribution pattern, information dimension, correlation dimension