北海市森林火险等级区划

Plan of Forest Fire Risk Grade in Beihai City of Guangxi Province

森林火险区划是林火管理的基础。根据森林火险区划理论,结合北海市实际情况及采集数据资料的完整性,筛选出与森林火灾最密切相关的11个因子,采用层析分析法(AHP)计算各因子的权重,综合考量森林资源载量,对研究区森林火险等级情况进行定量评价,将火险划分为3个等级。运用ArcGIS软件将研究区森林火险等级进行作图分析,为该区域今后的森林火灾预测预报和科学经营管理提供决策参考和技术支持。

Forest fire risk plan is the basis of forest fire management. According to the theory for fire division,11 factors,which are closely related to forest fire data integrity and actual situation in Beihai City,were selected. By the analytic hierarchy process（ AHP）,we determined the final weighting factor and considered the total quantity of forest resources,and three levels was graded based on forest fire serious situation by quantitative evaluation of this study area. By using ArcGIS software,the graphing analysis on forest fire risk could provide relevant reference and technical support for further decision-making.