| Ten towns and villages in Pinglu County,Shanxi Province are key forest fire prevention areas.There are hidden forest fire hazards such as more forest resources and frequent population activities.The situation of forest fire prevention is severe,and the time since the last forest fire hazard zoning is longer.Forest fire danger zoning.In this study,Pinglu County,Shanxi Province was used as the research area.According to the forest combustion ring theory,the evaluation indicators were selected,and Arc GIS software was used to extract the vegetation type,canopy density,forest age,and altitude in the data of the Pinglu County's 2018 forest resource type II survey and archiving A total of 9 forest fire risk factors including slope,slope,slope position,aspect,traffic location,and population density are used as indicators.The impact of each index on forest fire risk is analyzed,and a thematic map corresponding to each fire risk factor is established.On this basis,a forest fire risk evaluation system is established,the analytic hierarchy process is used to determine the weight of each index,and the image overlay is performed using Arc GIS software to obtain a map of forest fire risk zoning in Pinglu County,Shanxi Province,and corresponding countermeasures are proposed for regions with different fire risk levels..The research results provide scientific support for the forestry department of Pinglu County to formulate forest fire management policies.The main findings are as follows:(1)The first-class fire insurance areas are mainly distributed in Hongchi Township,Changle Town,Zhangcun Town,Duma Township,Buguan Township,the northern part of Zhangdian Town and the central area of ?Shengrenjian Town,and the second-level fire insurance zone It is mainly distributed in the north of Shengrenjian Town,Sanmen Town and Podi Town.The tertiary fire danger areas are mainly distributed in the three townships of Sanmen Town,Podi Town and Caochuan Town,accounting for17.5% of the area of Pinglu County.,11.4%,17.9%,the risk of fire is higher,and the corresponding precautions should be strengthened for areas with high fire risk levels.(2)During the selection process of the forest fire risk indicators used in this paper,reference was made to the occurrence of forest fires in other areas of Shanxi Province and the research of relevant scholars,combined with the actual situation in Pinglu County,so the research system can be betteranalyzed Forest fire risk in Pinglu County.After using AHP to analyze the weights,it was found that the factors that had the greatest impact on the results of the forest fire hazard zoning in Pinglu County were traffic location and vegetation type.(3)The fire risk rating in the north of Pinglu County is generally higher than that in the south,and the fire risk rating in the west is generally higher than that in the east.According to the results of the zoning,relevant forestry departments in Pinglu County can make different investment in fire protection resources according to different fire risk levels,which can save resources while maximizing efficiency and reducing the possibility of forest fires. |
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