Application of Remote Sensing Technology to Geological Hazard Investigation in Xintian Town Longchuan County Guangdong
Geological disasters seriously threaten social and economic construction and the safety of people's lives and property.In order to formulate scientific disaster prevention and mitigation strate-gies to ensure the safety of people's lives and property.Using remote sensing technology from a macroscopic and comprehensive perspective,through multi-source remote sensing image data analy-sis,combined with existing geological hazard points and field exploration in the area,and using the comprehensive method of human-computer interaction,this paper interprets lithology,structure and geological disasters in Xintian town,Longchuan county,Guangdong,analyzes the relationship be-tween geological disasters and occurrence time,topography and geomorphology,structure and human activities,and determines the types,scale and spatial distribution characteristics of geological disas-ters such as landslides,geological hazards and collapses,and the results show that a total of 136 ge-ological hazard disaster points are interpreted.There are 3 geological environment points,and the scale is mainly small;In terms of time,it is concentrated in the rainy season in May—August and has a lag;The overall development degree of geological disasters is greater in the north than in the south,and are concentrated in the low hilly area with an elevation slope of 380～460 m below 30° slope to the northeast to the north.Human activities are the main factors in the development of geo-logical hazard points.Through remote sensing geological disaster interpretation and field verification,various geological disasters can be effectively identified and monitored,which has guiding signifi-cance for the planning of geological disaster prevention and control in Xintian town.
remote sensing interpretationgeological hazardsinteractiveXintian town
国家科技期刊平台
NSTL
万方数据
维普
