| 新疆天山地区地貌分形与多重分形特征研究 |
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| 引用本文： | 李锰,朱令人,龙海英.新疆天山地区地貌分形与多重分形特征研究[J].内陆地震,2003,17(1):20-26. |
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| 作者姓名： | 李锰 朱令人 龙海英 |
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| 作者单位： | 新疆维吾尔自治区地震局,新疆,乌鲁木齐,830011 |
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| 基金项目： | 新疆地震科学基金资助项目(200007). |
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| 摘 要： | 利用投影覆盖法和投影覆盖概率对新疆天山地区不同构造地貌类型进行了分形与多重分形特征的研究。结果表明：在所研究的标度范围内，不同地貌区均表现出明显的多度域分形，分维值总体上呈现出高山区＞中低山区＞盆地区特点，多重分形谱Dq的形态和值域范围也表现出不同特征。研究认为，地貌表面的分维值与地貌形成的内外力地质作用方式和强度密切相关，并提出5-6km的尺度可作为地貌学研究中宏观与微观作用的分界点。
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| 关 键 词： | 新疆 天山地区 地貌 分形 投影覆盖法 地质作用方式 |
| 文章编号： | 1001-8956(2003)01-0020-07 |
| 修稿时间： | 2002年9月12日 |
RESEARCH ON FRACTAL AND MULTI-FRACTAL PROPERTIES OF LANDFORM SURFACE IN TIANSHAN AREA, XINJIANG, CHINA |
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| LI Meng,ZHU Ling ren,LONG Hai ying.RESEARCH ON FRACTAL AND MULTI-FRACTAL PROPERTIES OF LANDFORM SURFACE IN TIANSHAN AREA, XINJIANG, CHINA[J].Inland Earthquake,2003,17(1):20-26. |
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| Authors: | LI Meng ZHU Ling ren LONG Hai ying |
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| Abstract: | By using the Projective Covering method and projective covering probability, the fractal and multi fractal dimensions of several types of landform surfaces in Tianshan area, Xinjiang, China, are computed. The result shows that the studied landform surfaces are not simple fractal, but multi range scaling fractal, and the fractal dimensions increase with the varying of landform types from basin, mid low mountain to high mountain. Nevertheless, different types of landscapes show different D\-q q curve shapes. The D\-q value of the landform of high mountain type has the widest range; the second is the mid low mountain type, and then the basin type. It suggests that the fractal dimension value mainly depends on the intensity and scale of the endo exogenic geological effect, and that the 5 6 km scale can be considered as the boundary plane of macro effect and micro effect on landform. |
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| Keywords: | Tainshan Mountain Landform Fractal Multi fractal Projective covering method |
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