Abstract
Slope aspect is one of the indispensable internal factors besides lithology, relative elevation and slope degree. In this paper authors use information value model with Geographical Information System (GIS) technology to study how slope aspect contributes to landslide growth from Yunyang to Wushan segment in the Three Gorges Reservoir area, and the relationship between aspect and landslide growth is quantified. Through the research on 205 landslides examples, it is found that the slope contributes most whose aspect is towards south, southeast and southwest aspect contribute moderately, and other five aspects contribute little. The research result inosculates preferably with the fact. The result of this paper can provide potent gist to the construction of Three Gorges Reservoir area in future.
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Foundation item: Supported by the Innovative Item of Institute, CAS & the Key International Science and Technology Cooperation Projects of China (2004DFB01100)
Biography: WU Caiyan (1976-), female, Ph. D. candidate, research direction: landslide forecast and slope stability.
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Caiyan, W., Jianping, Q. & Meng, W. Landslides and slope aspect in the Three Gorges Reservoir area based on GIS and information value model. Wuhan Univ. J. Nat. Sci. 11, 773–779 (2006). https://doi.org/10.1007/BF02830163
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DOI: https://doi.org/10.1007/BF02830163