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对贵州息烽林场67个森林火险调查样方进行PCA、COA排序和模糊综合评判表明:海拔影响林场森林可燃物分布状况和土壤含水量;林场森林火险以危险和较危险两级为主,影响的主要因素是海拔、森林可燃物类型和火源状况;森林可燃物分为非林分型可燃物、林相整齐的中幼林型可燃物和近成过熟林型可燃物、林相不整齐林分型可燃物;林场森林火险区划为4级区域,即很危险区(Ⅰ)、危险区(Ⅱ)、较危险区(Ⅲ)和略危险区(Ⅳ).
The PCA, COA ranking and fuzzy comprehensive evaluation of 67 forest fire risk sampling quadrats in Xifeng Forest Farm in Guizhou Province indicated that the elevation affected the forest fuel combustibles distribution and soil water content in forest farm. The forest fire risk in forest farm was mainly at risk and risk level, The main factors are the altitude, the type of forest fuel and the source of fire conditions; the forest fuel is divided into non-forest type combustible material, neat forest type combustible material and near-mature forest type combustible material, Type combustibles. The forest fire area of forest farm is divided into four levels, namely very dangerous area (Ⅰ), dangerous area (Ⅱ), more dangerous area (Ⅲ) and slightly dangerous area (Ⅳ).