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| 小叶章种群分布格局的分形特征Ⅰ计盒维数 | |
| 引用本文： | 倪红伟,马克明,赵伏臣. 小叶章种群分布格局的分形特征Ⅰ计盒维数[J]. 植物研究, 2000, 20(2): 229-234 |
| 作者姓名： | 倪红伟 马克明 赵伏臣 |
| 作者单位： | 1. 黑龙江省科学院自然资源研究所, 哈尔滨 150040; 2. 中国科学院生态环境研究中心, 北京 100085; 3. 黑龙江省南岔林业局, 南岔 153100 |
| 基金项目： | 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 |
| 摘 要： | 应用分形理论(Fractal theory)中的计盒维数(Box-counting dimension)对三江平原小叶章(Deyeuxia angustifolia)种群分布格局特征进行了研究。结果表明:三江平原小叶章种群分布格局具有分形特征。其计盒维数5~9月分别为1.524、1.769、1.711、1.615、1.701,表明其占据空间能力较强。季节动态自5月始至6月达到极大值,而后逐渐下降,至9月略有回升。这与小叶章的生长发育规律相一致。 |
| 关 键 词： | 小叶章种群 分布格局 计盒维数 生态间隙维 |
| 收稿时间： | 1999-07-29 |
THE FRACTAL CHARACTER OF THE DISTRIBUTION PATTERN OF DEYEUXI A ANGUSTIFOLIA POPULATION I. Box Dimension. |
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| NI Hong-wei MA Ke-ming Zhao Fu-chen. THE FRACTAL CHARACTER OF THE DISTRIBUTION PATTERN OF DEYEUXI A ANGUSTIFOLIA POPULATION I. Box Dimension.[J]. Bulletin of Botanical Research, 2000, 20(2): 229-234 | |
| Authors: | NI Hong-wei MA Ke-ming Zhao Fu-chen |
| Affiliation: | 1. Institute of Nature Resources Heilongjiang Academy of Sciences, Harbin 150040; 2. Research Center for Eco-Environmental Science, the Chinese Academy of Sciences, Beijing 100085; 3. Nancha Forestry Bureau Heilongjiang, Nancha 153100 |
| Abstract: | The distribution pattern of D. Angustifolia in the Sanjiang plain has been described by using the box dimension and information dimension of fractal theory. The result reveals that:There was fractal feature. The box dimension respectively was 1.524、1.769、1.711、1.615 and 1.701 from May to September. Powerfully occupy space has been shown. Seasonal dynamic of box dimensions reached their maximum values beginning May to June then fell down. They were gone up again in September. This was accordance with the growth rhythm of D. Angustifolia population. |
| Keywords: | Deyeuxia angustifolia population distribu tion pattern box dimension ecological unoccupation dimension |
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