Study on Regionalization of Forest Fire Risk based on GIS
[Objective]The aim was to study the forest fire risk regionalization in Chengde city,and to provide technical support for preventing forest fires.[Method]Based on the data of 312 cases of forest fire,meteorological observation and topographic environment in Chengde from 2006 to 2020,the risk assessment model of forest fire in Chengde was established,and the weight was determined by analytic hierarchy process,using ArcGIS software's raster computing function and natural break point classification,Chengde was divided into low,medium,high and extremely high risk areas.[Result]The extremely high-risk area of forest fire accounted for 12.6%of the total area of the study area,and the high-risk area,medium-risk area and low-risk area accounted for 24.6%,32.4%and 30.4%of the total area of the study area,respectively.The extremely high-risk and high-risk areas were mainly located in the urban areas of Chengde city,Pingquan city,Kuancheng Manchu autonomous county,Chengde county,western Fengning Manchu autonomous county,and southwestern Longhua,while the medium-risk areas were mainly located in the east-central Fengning Manchu autonomous county,central Longhua and middle-eastern Luanping and Xinglong,low-risk areas were mainly in Weichang Manchu and Mongol autonomous county and western Xinglong county.[Conclusion]The study of forest fire risk regionalization based on GIS can provide valuable reference for local emergency management and forest fire prevention management.
Forest fireArcGISRisk regionalizationForest fire prevention management
万方数据
维普
