IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Alternative TitleStudy on landslide hazard zonation using contributing weight overlay method
乔建平1,2; 王萌1,2
Corresponding Author乔建平
Source Publication自然灾害学报
Other Abstract 介绍的贡献权重叠加的滑坡危险度区划方法,是基于GIS技术将环境本底因子对滑坡发育的贡献作用进行量化统计后,通过贡献率与权重的转换,分别计算这些因子的自权重和互权重,再与每一个因子叠加。该方法的特点是评价模型简单,选取的因子指标可以直接从数值图件和野外调查中获得,定量化效果明显;

Contributing weight overlay model can be used as a kind of landslide hazard zonation methods. It is a GIS-based pixel-by-pixel analysis. Firstly, the method determines the event-controlling parameters and divides them into subtypes, then, calculates statistical correlations between the subtypes and landslide inventory, compares the number, area, and volume of landslides occupied by the factors subtypes with the number, area and volume of landslides in the factors. Contribution ratios of subtypes of different factors will be got. By using equalization and normalizing processes to the contribution ratio,it is possible to calculate every factor' s self-weight and mutualweight. Finally, through making an overlay by multiplying contribution ratios, self-weights and mutual-weights, the level of regional-scale landslide hazard can be determined. This method is simple and easy to use. Event-controlling factors can be obtained from digital maps or field survey directly. Quantitative effect is satisfied

Keyword权重 叠加 叠加 滑坡 区划
Indexed ByCSCD
Citation statistics
Cited Times:4[CSCD]   [CSCD Record]
Document Type期刊论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
乔建平,王萌. 贡献权重叠加法的滑坡危险度区划研究[J]. 自然灾害学报,2011,20(4):8-13.
APA 乔建平,&王萌.(2011).贡献权重叠加法的滑坡危险度区划研究.自然灾害学报,20(4),8-13.
MLA 乔建平,et al."贡献权重叠加法的滑坡危险度区划研究".自然灾害学报 20.4(2011):8-13.
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