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采用自行设计的装置对云南松小枝进行了耐火性试验,建立了云南松小枝韧皮部死亡率y与枝直径x1、枝皮厚度x2、受热时间x3、受热温度x4、取皮枝段是否有叶x5的关系模型,即y=-20.222-0.414x1-0.367x2+0.109x3+0.453x4+3.696x5。分析表明,5个因子对韧皮部死亡率的影响程度从大到小顺序为x4、x3、x5、x2、x1。根据云南松小枝的耐火性提出了相应的森林消防措施。
The self-designed device was used to test the fire resistance of Pinus yunnanensis. The mortality rate of yunnan phloem branch y and branch diameter x1, branch skin thickness x2, heating time x3, heating temperature x4, The relationship model, that is y = -20.222-0.414x1-0.367x2 +0.109x3 + 0.453x4 + 3.696x5. The results showed that the order of influence of five factors on phloem mortality was x4, x3, x5, x2, x1. According to the fire resistance of Pinus yunnanensis, the corresponding forest fire protection measures were put forward.