Study on Susceptibility Zoning of Geological Hazards in Town Area—Taking Yinjiang Town,Dapu County,Meizhou City as an Example
QIU Jin'an
DENG Zhide
LIU Yanhui
JIN Jiongqiu
ZHANG Jie
TONG Jiwei
XIE Runpei
MEI Weibiao
HUANG Zongwan
Abstract：Based on the geological hazard exploration data of Yinjiang Town,Dabu County,Meizhou City,combined with the geological environment conditions of typical mountainous and hilly areas in Guangdong Province,eight factors,such as point density,area density,volume density,slope,rock and soil type,fracture density,annual rainfall and human engineering activity intensity of geological hazard points are selected to establish the index system of geological hazard susceptibility zoning in towns.The comprehensive susceptibility index of geological hazards of 833 basic evaluation units(0.5 km×0.5 km)is calculated by using the comprehensive index method on the GIS platform,and the geological hazard susceptibility zoning of Yinjiang Town is carried out accordingly.The research results show that the geological hazard zoning in Yinjiang Town are mainly medium and high susceptibility areas,accounting for 36.63%and 36.67%of the total area respectively,and the number of disaster points in high susceptibility areas accounts for 74.08%of the total.The research results can provide a basic geological basis for reasonably reducing the harmfulness and risk of geological hazards in Yinjiang Town.
Keywords：Geological hazardSusceptibilityComprehensive index methodTownEastern Guangdong
Publication Date：2023-12-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 80-86 )