关键词：
森林火险指数;森林火险等级;森林火险区划
摘 要：
以陕西周至国家级自然保护区为例,利用森林资源二类调查资料、DEM数据和地形图,借助GIS技术平台,选取地物类型(地类、优势树种)、地形因子(海拔高度、坡度、坡向)、交通区位和居民区距离作为计算森林火险指数(FFR)的主要因子,采用综合评价法,计算了周至国家级自然保护区的森林火险指数。根据计算的森林火险指数,把周至国家级自然保护区划分为5类火险区,即无火险、低火险、中火险、高火险和极高火险,其中,高火险区占48.9%,极高火险区占30.2%,高火险、极高火险等级所占面积较大。研究结果可为周至国家级自然保护区的森林火灾管理提供参考,达到防灾减灾,保护森林资源的目的。
译 名：
Study on Forest Fire Risk Zone Based on Forest Fire Risk Index
作 者：
WANG Wei;Northwest Institute of Forest Inventory,Planning and Design,SFA;
关键词：
forest fire risk index,forest fire risk rating,forest fire risk regionalization
摘 要：
Based on forest management planning and design inventory data,DEM data and topographic map of Zhouzhi National Nature Reserve,the forest fire risk index( FFR) was quantified by the factors including vegetation type,topographic factors( elevation,slope,aspect),traffic location and residential distance. The Zhouzhi National Nature Reserve was regionalized by safe,low,moderate,high and extremely high fire risk zones according to forest fire risk index( FFR). Among them,high fire risk area accounted for 48. 9%,extremely high fire risk zones accounted for 30. 2%,high and extremely high fire risk accounted for a larger area. The results can provide avaluable reference for forest fire management in Zhouzhi National Nature Reserve to achieve disaster prevention,mitigation and protection of forest resources.
