滑坡易发性评价影响因子研究综述
首发时间:2017-06-20
摘要:滑坡的易发性评价对于防灾减灾工作有着重要的作用,是防灾减灾的主要依据之一,其相关研究是社会发展的必然要求。广泛搜集已有滑坡易发性评价文献,统计分析了研究中因子选择与因子组合的一般特征,从评价因子选择、因子赋值、因子权重、因子组合等方面进行总结综述。结果显示在不同研究背景条件下,所选取因子有一定的差异,总体上工程地质岩组、坡度、高程、坡向,是选择比例最高的因子,且为最常用的基础因子组合,随着因子数量的增加,断层距离、水系、人类活动、植被、地震动峰值加速度等因子依次被考虑。最后分析了存在的相关问题并探讨了进一步研究的内容。
关键词: 滑坡易发性评价; 因子选取; 因子赋值; 因子组合; 统计特征
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Survey on impact factor research of landslide susceptibility assessment
Abstract:The research of landslide susceptibility play a important role in prevention and reduction of natural disasters, it is one of the main basis for disaster prevention and mitigation. The related research is the necessary requirement for social development. This study is based on the existing research about landslide susceptibility. Statistics count and analysis of the existing research about factor selection and combination. Summarizing the research of landslide susceptibility impact factor, including factor selection, factor assignment, factor weights, factor combination. The research shows that the selection of impact factor display certain difference in different background conditions. In total, the selection proportion of geological rock conditions, slope angle, elevation and slope aspect are the highest, followed by distance to fault, water index, human engineering activities, NDVI, PGA, are taken into account respectively with the increasing number of impact factor. Then, analysis the existing issue, and discuss the issue that need to further study.
Keywords: Landslide susceptibility assessment factor selection factor assignment factor weights factor combination
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No.4737381181536149****
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