西南腐殖质阴燃向明火转变研究  

Study on the Transition from Humus Smoldering to Open Flame in Southwest China

作　　者：黄蔚 王皓良 彭小峰 吴懿芃 吴俊翰 杨玖玲 Huang Wei;Wang Haoliang;Peng Xiaofeng;Wu Yipeng;Wu Junhang;Yang Jiuling(College of Engineering,Sichuan Normal University,Chengdu 610101,China)

机构地区：[1]四川师范大学工学院,成都610101

出　　处：《林业科技情报》2024年第3期7-10,共4页Forestry Science and Technology Information

基　　金：校级人才培养项目(No.qdf20220307);四川省大学生创新创业训练项目(x202310636260,x202310636263)。

摘　　要：从森林火灾的火三角形:燃料、地形和气象条件来看,西南林区容易山火频发,原因在于西南林区以云南松、高山松为主,而长年凋落的枯枝、松针会形成较厚的地面腐殖质层。本文旨在以西南地区腐殖质为研究对象,着重探讨在自然环境下不同风速对西南腐殖质由阴燃向明火转变的影响。为此,本文通过实验研究腐殖质粒径和密度对阴燃传播速度以及质量损失速率的影响,可为西南森林阴燃火灾的预测预防提供一定的指导。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 different 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.

关 键 词：西南腐殖质 阴燃向明火转变 风速 粒径 

分 类 号：X932[环境科学与工程—安全科学]