| 中国旱灾分维及其灾情演变趋势研究 |
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| 引用本文： | 朱晓华,杨秀春.中国旱灾分维及其灾情演变趋势研究[J].水科学进展,2002,13(6):747-750. |
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| 作者姓名： | 朱晓华 杨秀春 |
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| 作者单位： | 1.北京大学城市与环境学系, 北京, 100871; |
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| 基金项目： | 教育部"教育振兴计划"青年教师奖励基金资助项目(2001DLXSBJBC12) |
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| 摘 要： | 根据分形理论,首先分析了中国旱灾中的分形结构,然后运用常规统计方法分析了中国旱灾灾情的趋势,在此基础上探讨了对我国实施可持续发展战略的有益启示。
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| 关 键 词： | 分形 分维 旱灾 中国 |
| 文章编号： | 1001-6791(2002)06-747-04 |
| 收稿时间： | 2001-09-28 |
| 修稿时间： | 2001年9月28日 |
On the fractal dimensions characters and trend of drought in China |
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| ZHU Xiao-hua,YANG Xiu-chun.On the fractal dimensions characters and trend of drought in China[J].Advances in Water Science,2002,13(6):747-750. |
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| Authors: | ZHU Xiao-hua YANG Xiu-chun |
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| Institution: | 1.Department of Urban and Environment, Peking University, Beijing 100871, China;2.Institute of Resources Science, Beijing Normal University, Beijing 100875, China |
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| Abstract: | According to the fractal theory,the fractal character of drought in China is preliminarily discussed in this paper,and the trend of drought in China is discussed too.Some conclusions are drawn as fol lows:(1)The fractal dimensions character of drought exists in China,and the fractal dimension of drought in Huabei is 0.8784,that of Dongbei is 0.8167,and that of Huanan is 0.8428,etc(2)The fractal dimensions of different level drought in different regions in China are calculated,and the relat ionships between the whole fractal dimensions and the average fractal dimensions for different level drought in different regions are discussed too(3)The trend of drought in China is also opened out,thus,if we continue the unsustainable policy,the drought may not be controlled in someday in China. |
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| Keywords: | fractal fractal dimension drought China |
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