摘要
通过处理嘉禾县近年来发生地质灾害以及地形地貌、降雨等数据,分析研究区地质灾害的空间分布特征和成因机理;采用随机森林模型,构建滑坡易发性等级区划图;结合2022年汛期强对流强降水过程,在暴雨来临之前,通过手机短信、QQ、微信群发布地质灾害提醒信息;在暴雨来临之时,及时电话叫应服务,特别是行廊镇、袁家镇、坦坪镇、晋屏镇、珠泉镇;暴雨之后,结合地质灾害易发性分布图,对行廊镇、袁家镇、坦坪镇、晋屏镇、珠泉镇的乡镇负责人进行特别的电话警示。将气象服务从县一级延伸至乡镇,甚至村一级,筑牢气象防灾减灾的第一道防线。
Analyzes the spatial distribution characteristics and genesis mechanism of geological disasters in the study area by processing the geological disasters,topography, rainfall and other data in Jiahe County in recent years. The random forest model was used to construct a landslide susceptibility grade zoning map. In the process of strong convection and heavy precipitation during the flood season,the geological disaster reminder information should be released in advance through mobile phone text messages, QQ, and WeChat groups before the rainstorm;Town, Jinping Town, Zhuquan Town;after the rainstorm,combined with the distribution map of the susceptibility to geological disasters, special telephone calls were made to the township leaders of Xinglang Town, Yuanjia Town,Tanping Town, Jinping Town and Zhuquan Town Warning. Extending services from the county level to the township and even the village level had built the first line of defense for meteorological disaster prevention and mitigation.
作者
曹巧云
李刘
周璇
潘奉乐
张龙
刘素平
Cao Qiao-yun(Chenzhou Meteorological Bureau,Chenzhou,Hunan 423000)
出处
《农业灾害研究》
2023年第1期173-175,共3页
Journal of Agricultural Catastrophology
基金
基于随机森林的地质灾害气象风险防御服务研究(XQKJ22B049)。
关键词
地形地貌
降雨
地质灾害
随机森林
Landform
Rainfall
Geological hazards
Random forest
