CAJ | 학술논문

可燃物是火灾燃烧的物质基础，草甸枯死的杂草极易引起火灾。计划烧除方式可人为干预减少可燃物载量，改变可燃物立体结构，切断可燃物的连续分布，达到预防、减少高强度火灾的目的。选取大兴安岭南部草甸进行计划烧除实验，分析计划烧除前后的可燃物载量、含水率、高度、厚度，评价计划烧除的烧除率、花脸率、清除率，以及计划烧除的火行为。结果表明，草甸开展计划烧除能够取得良好的防火效果，可燃物平均清除率达77.63%、平均高度下降81.21%、平均厚度下降66.28%、平均花脸率为17.16%；可燃物载量高、含水率低、平均高度都能提升火焰高度，增加火线强度。
가연물시화재연소적물질기출，초전고사적잡초겁역인기화재。계화소제방식가인위간예감소가연물재량，개변가연물입체결구，절단가연물적련속분포，체도예방、감소고강도화재적목적。선취대흥안령남부초전진행계화소제실험，분석계화소제전후적가연물재량、함수솔、고도、후도，평개계화소제적소제솔、화검솔、청제솔，이급계화소제적화행위。결과표명，초전개전계화소제능구취득량호적방화효과，가연물평균청제솔체77.63%、평균고도하강81.21%、평균후도하강66.28%、평균화검솔위17.16%；가연물재량고、함수솔저、평균고도도능제승화염고도，증가화선강도。
Combustible material is material base of fire and dead grass in the meadow can easily cause fire. Planned burning may involve artificial intervention to decrease the volume of combustible material, change stereo-structure of combustible material and cut off the continuous distribution to achieving the purpose of preventing and reducing high-intensity fires. With the meadow in southern Daxing’anling selected for experiments, the volume, moisture, height and thickness of combustible material before and after burning are analyzed , the burning rate, painted-face rate, clearance rate and the fire behavior of planned burning are evaluated. The result shows that planned burning of the meadow can realize a good fire prevention effect, with average clearance rate of combustible material reaching 77.63%, average height falling by 81.21%, average thickness by 66.28%, average painted face rate by 17.16%. Combustible material has large volume, low moisture rate, with average height able to increase flame height, thereby increasing fireline intensity.