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研究蒙古栎阔叶床层在近似恒温湿条件下不同风速时的失水过程,分析了风速对床层失水系数的影响.结果表明:风速对蒙古栎阔叶床层失水过程的影响与可燃物含水率有关.从较高含水率(>75%)到近平衡含水率的多个失水过程可划分为3个阶段:有风失水速率大于无风失水速率的初始阶段、有风失水速率小于无风失水速率的中间阶段、不同风速失水速率相近的结束阶段.风速的影响随床层含水率降低而下降.蒙古栎阔叶床层的失水系数受风速、密实度和两者交互作用的影响,其中,失水系数随风速以三次多项式近似单调增加.
The effect of wind speed on the bed water loss coefficient was analyzed.The results showed that the effect of wind speed on the water loss of broadleaved bed of Quercus mongolica Combustible water content is related to multiple water loss from high water content (> 75%) to near-equilibrium moisture content can be divided into three stages: windy water loss rate is greater than the initial stage of windless water loss rate, there The wind loss rate is less than the middle stage of windless water loss rate and the ending stage of different wind speed water loss rates.The wind speed decreases with the decrease of bed moisture content.The water loss coefficient of Quercus mongolica broad-leaved bed is affected by wind speed, Degree and interaction between the two, in which the coefficient of water loss with the wind speed with a cubic polynomial approximate monotonous increase.