| Bottom Factors Applied to the Zoning Study of the Risk Levels of Landslides in the Three Gorges Reservoir Area |
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| 引用本文： | QIAO Jianping ZHU Axing WU Caiyan TIAN Hongling. Bottom Factors Applied to the Zoning Study of the Risk Levels of Landslides in the Three Gorges Reservoir Area[J]. 武汉大学学报:自然科学英文版, 2006, 11(4): 761-766. DOI: 10.1007/BF02830161 |
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| 作者姓名： | QIAO Jianping ZHU Axing WU Caiyan TIAN Hongling |
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| 作者单位： | [1]Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China [2]University of Wisconsin, Madison, Wisconsin 53706-1491,USA |
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| 基金项目： | 科技部国际科技合作计划 |
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| 摘 要： | Without taking inducing factors into consideration, this paper adopts a quantitative analysis of the bottom factors in the Three Gorges Reservoir area, studies the relationship between the bottom factors and the development of landslides, and then zones the area according to risk levels. The bottom factors adopted in this paper include lithological characters（U1 ）, gradient（U2 ）, slope form （U3）, difference of helght（U4 ）, and slope orientation（U5 ）. In 4 650 km^2 of the studied area, the areas of the very high, high, medium and low hazard degree area respectively were 57. 94 km^2 , 2 305.15 km^2, 1 241.6 km^2, 1 045.31 km^2. The methodological steps are （1） inversion statistic analysis, （2） the analysis of contribution ratio and weighing, （3） getting results via fuzzy evaluation of risk levels.
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| 关 键 词： | 带状构造 山崩 风险水平 底部因素 储层面积 |
| 文章编号： | 1007-1202（2006）04-0761-06 |
| 收稿时间： | 2005-11-10 |
Bottom factors applied to the zoning study of the risk levels of landslides in the Three Gorges Reservoir area |
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| Qiao Jianping,Zhu Axing,Wu Caiyan,Tian Hongling. Bottom factors applied to the zoning study of the risk levels of landslides in the Three Gorges Reservoir area[J]. Wuhan University Journal of Natural Sciences, 2006, 11(4): 761-766. DOI: 10.1007/BF02830161 |
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| Authors: | Qiao Jianping Zhu Axing Wu Caiyan Tian Hongling |
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| Affiliation: | (1) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041 Chengdu, Sichuan, China;(2) University of Wisconsin, 53706-1491 Madison, Wisconsin, USA |
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| Abstract: | Without taking inducing factors into consideration, this paper adopts a quantitative analysis of the bottom factors in the Three Gorges Reservoir area, studies the relationship between the bottom factors and the development of landslides, and then zones the area according to risk levels. The bottom factors adopted in this paper include lithological characters(U 1), gradient(U 2), slope form (U 3), difference of height(U 4), and slope orientation(U 5). In 4 650 km2 of the studied area, the areas of the very high., high, medium and low hazard degree area respectively were 57. 94 km2, 2 305. 15 km2, 1 241. 6 km2, 1 045. 31 km2. The methodological steps are ① inversion statistic analysis, ② the analysis of contribution ratio and weighing, ③ getting results via fuzzy evaluation of risk levels. Foundation item: Supported by the Key International Science and Technology Cooperation Projects of China (2004DFB01100) Biography: QIAO Jianping (1953-), male, Professor, research direction: landslide hazard assessment, landslide mechanism and distribution rule. |
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| Keywords: | bottom factors Three Georges area landslide |
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