Study on the Transition from Humus Smoldering to Open Flame in Southwest China
From the perspective of the fire triangle of forest fires:fuel,terrain and meteorological conditions,the southwest forest area is prone to frequent mountain fires,because the southwest forest area is dominated by Yunnan pine and alpine pine,and the withered branches and pine needles will form a thick humus layer on the ground.The purpose of this paper is to investigate the influence of dif-ferent wind speed on the transformation of humus from smoldering to open flame in southwest China.Therefore,the effects of humus particle size and density on smouldering propagation rate and mass loss rate are studied in this paper,which can provide some guidance for the prediction and prevention of forest smouldering fires in southwest China.
Southwest humussmoldering to open flame transformationwind speedparticle size