Based on the 1:50000 geological disaster risk survey data of Maoming City,the risk evaluation system of 25m×25m grid evaluation unit was constructed by the weighted information model coupled with AHP-information method.The results indicate that the high-risk area covers an area of 1457.31km2,accounting for 12.73%of the total area;The medium risk area covers 3360.39km2,accounting for 29.34%of the total area;The low-risk area covers 6633.81km2,accounting for 57.93%of the total area.These provide a reference basis for disaster prevention,land use planning,and spatial function management in Maoming City,and also has certain reference significance for geological disaster risk assessment in other similar areas.
维普
万方数据