黄河中游地形河网分形与重力侵蚀关系研究

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在重力侵蚀的各种影响因素中,地形地貌既为重力侵蚀的发生提供基本动力(重力),其形态又是重力侵蚀长期作用的结果。对黄河中游典型区域地形分形和河网沟道分形的计算及其与重力侵蚀相互关系的初步分析表明:通过分形来反映流域地形地貌综合因素是可行的;地形分形与重力侵蚀的关系较为紧密,可以用于重力侵蚀的宏观预测;河网分形与重力侵蚀的关系较弱。 Among various influencing factors of gravity erosion, the topography provides the basic dynamic (gravity) for the occurrence of gravitational erosion and its morphology is the result of the long-term effect of gravity erosion. The preliminary analysis of the fractal of the terrain and the channel network in the typical area of ​​the middle reaches of the Yellow River and its correlation with gravity erosion shows that it is feasible to reflect the comprehensive factors of the topography by the fractal. The fractal of the terrain is closely related to the gravity erosion, It can be used for macro prediction of gravity erosion. The relation between river network fractal and gravity erosion is weak.
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