水土保持通报2017，Vol.37Issue(3)：227-230,236,5.DOI:10.13961/j.cnki.stbctb.2017.03.038
基于土壤侵蚀模型的浅层滑坡预警研究
Research on Early Warning of Shallow Landslide Based on Soil Erosion Model
摘要
Abstract
[Objective] Using the soil erosion model in early warning of shallow landslide,to provide a new reference for landslide early warning work in mountain area.[Methods] A typical area covering 440 km2 in Ziyang County of Shaanxi Province was taken as research area,where the historical landslide data,meteorological data and satellite data were collected.Universal soil loss equation(USLE) combined with GIS was used to determinate the critical soil erosion intensity.Upon which,the early warning rainfall amount was derived based on the relationship between rainfall erosivity and rainfall amount.[Results] A significant correlation between soil erosion and the landslide was found.The critical soil erosion in the research area ranked 69.6,136.7,179.4 t/km2 respectively.[Conclusion] Compared to the traditional way that only the statistical relationship between landslide and rainfall is considered,the method which based on the USLE is easily applied and has a high practical value.关键词
浅层滑坡/土壤侵蚀/秦巴山区/滑坡预警Key words
shallow landslides/soil erosion/Qinba Mountains/landslide early warning分类
天文与地球科学引用本文复制引用
吕佼佼,范文,吕远强..基于土壤侵蚀模型的浅层滑坡预警研究[J].水土保持通报,2017,37(3):227-230,236,5.基金项目
国家自然科学基金项目“降雨诱发软弱变质岩斜坡浅表层变形破坏机理研究”(41272282) （41272282）
中国地质调查局地质调查工作项目“秦巴山区浅表层滑坡变形破坏机理研究”(1212011220135) （1212011220135）
