华山松朽木阴燃特性的初步研究

Preliminary Study on Characteristics of Smoldering Combustion of Pinus armandii Deadwood

用自行设计的燃烧试验床对华山松Pinus armandii朽木进行阴燃试验,采集阴燃过程中的温度数据,通过分析朽木的物理性质、阴燃过程中的温度变化数据和现象,研究了朽木阴燃的引燃特性、持火力和蔓延特性.结果表明,华山松朽木具有易引燃、蔓延速度慢、高温维持时间长的特点,朽木具有保存火种作用.根据朽木阴燃特性提出了相应的森林消防措施.

Combustion experimentation of Pinus armandii litters were tested on burning platform designed by the authors to determine the characteristics of smoldering combustion and to collect temperature data. Through the analysis of physical properties of litters, temperature changes and phenomena during the burning process, the study was conducted on flammable characteristics, lasting and extensive features. The results showed that deadwood of Pinus armandii had of flammable characteristics, slow extension, long lasting of high temperature as well as conserving fire. Based on these, corresponding measures for forest fire prevention were proposed.