AIB — General Fire Risk

Description of the predisposing factors that help to determine the level of fire risk of the most critical period (winter or summer) of the territory of the Italian National Parks. An information layer has been developed in which the variable under consideration is classified on the basis of the degree of risk. So many layers of information have been obtained as many risk factors are being considered. The variables considered as predisposing environmental factors for fire risk were climate, land use and topographical layout (slope, exposure, altitude), which were held responsible for determining both the occurrence of fires and the behaviour of fire. By means of an overlay function, the individual layers were weighted for the production of the final fire risk map, according to the coefficients established by the model, differentiating the analysis for the two seasons of maximum manifestation of the phenomenon, winter and summer.本数据集针对意大利国家公园辖区内火灾风险最高的时段（冬季或夏季），阐释用于判定该时段火灾风险等级的火灾易感影响因子。研究已构建信息图层体系，基于风险等级对所考量的变量进行分类标注，且每一类纳入考量的风险因子均对应生成一组独立的信息图层。本次研究选取的火灾风险环境易感变量包括气候、土地利用类型与地形参数（坡度、坡向、海拔），上述变量被证实对火灾发生概率及火灾行为特征均具有决定性影响。通过图层叠加功能，依据模型预设的权重系数对各独立信息图层进行加权运算，最终生成全域火灾风险等级分布图；同时针对该灾害现象高发的两个季节（冬季与夏季）分别开展差异化分析。