地质科技情报2018，Vol.37Issue(1)：190-195,203,7.DOI:10.19509/j.cnki.dzkq.2018.0126
不同日降雨工况下万州区滑坡灾害危险性分析
Landslide Hazard Analysis under Different Daily Rainfall Conditions in Wanzhou District
摘要
Abstract
Landslide hazard analysis is of great significance to reduce disaster losses by guiding landslide prevention and mitigation,and urban land use planning.This landslide hazard analysis takes Wanzhou District in Three Gorges Reservoir as an example.In the analysis,the typical environmental index was firstly chosen and graded.And then,three mathematical statistical models,logistic regression model,support vector machine model and decision tree model,were used to calculate landslide susceptibility for the whole study area.Afterwards,landslide occurrence probability was analyzed under three different daily rainfall conditions.Finally,landslide hazard maps of Wanzhou District for each daily rainfall condition were obtained.The study shows that the support vector machine model is the optimal model for landslide susceptibility analysis in this study,and area with high susceptibility and hazard in Wanzhou are mainly distributed in strip-shape along the water system and concentrated in the main urban area,while the area of high elevation has lower landslide susceptibility and hazard.In addition,under specific conditions,landslide hazard of Wanzhou District increases with the increase of the daily rainfall.关键词
滑坡/易发性/危险性/支持向量机/万州区Key words
landslide/susceptibility/hazard/support vector machine/Wanzhou District分类
天文与地球科学引用本文复制引用
王芳,殷坤龙,桂蕾,陈丽霞..不同日降雨工况下万州区滑坡灾害危险性分析[J].地质科技情报,2018,37(1):190-195,203,7.基金项目
国家自然科学基金(41601563 （）
41641012) （）
