| 地形等高线的分形特征及其动力学含义 |
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| 引用本文： | 李锰,朱令人.地形等高线的分形特征及其动力学含义[J].西北地震学报,2002,24(2):97-103. |
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| 作者姓名： | 李锰 朱令人 |
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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： | 新疆地震科学基金项目(200007)部分成果. |
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| 摘 要： | 以天山地区不同地貌类型的地形等高线为研究对象 ,用尺度法探讨了它们的分形特征 .结果表明 :在 0 .1至 2 0 0km的标度范围内 ,不同地貌类型等高线具有不同的分形特点 ,而且与标度有关 .陆地表面地形等高线分维值与地貌侵蚀作用和不均匀堆积作用的强度密切相关 ,可作为地貌学研究中一个重要参数
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| 关 键 词： | 地形等高线 地貌 分形 分维 侵蚀作用 |
| 文章编号： | 1000-0844(2002)02-0097-07 |
| 收稿时间： | 2001/9/10 0:00:00 |
FRACTAL CHARACTERISTICS OF TOPOGRAPHIC ISOLINE AND DYNAMIC INTERPRETATION |
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| LI Meng and ZHU Ling-ren.FRACTAL CHARACTERISTICS OF TOPOGRAPHIC ISOLINE AND DYNAMIC INTERPRETATION[J].Northwestern Seismological Journal,2002,24(2):97-103. |
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| Authors: | LI Meng and ZHU Ling-ren |
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| Institution: | Seismological Bureau of Xinjiang Uygur Autonomous Region, Urumuqi 830011, China and Seismological Bureau of Xinjiang Uygur Autonomous Region, Urumuqi 830011, China |
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| Abstract: | Based on terrain elevation isolines from topographic maps with scale 1:50 000 and 1:1 000 000 in Tianshan area in Xinjiang, the fractal dimensions of isolines in 6 studying sectors from 3 different types of geomorphology, including high mountain, low-moderate mountain and catchment basin,are computed by using successive coarsening method. The results show that all the studied isolines are statistical fractals, and the fractal dimensions take on different characters for different geomorphological regions and scale ranges. It can be inferred that the fractional dimension values are closely dependent on the erosional intensities, and it can be a very important parameter in geomorphological and geodynamic researches. |
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| Keywords: | Topographic isoline Geomorphology Factal Dimension Erosional process |
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