【摘要】 林火强度,主要指火线强度,是林火行为主要指标之一,也是组织扑火力量,评价火的生态效应,以及营林用火的重要依据。从文献中提出了五种火线强度的计算方法。通过1985年10月间在东北林业大学帽儿山林场老山施业区红松人工林中试烧检验这些公式的适用性。结果表明:若以勃兰姆公式I=0.007 Hmr为基准,则I=273h^2·17)和I=3（10h）²公式的计算值偏低。而J=0.007Hwr（1-O）和I=mcv公式所得潜在火线强度都偏高,指出当火线强度用作灭火和用火的指标时,可采用潜在火线强度,它们既使用方便,又较为安全。更多还原

【Abstract】 Fire intensity is an important factor of fire behavior for fire suppression, fire ecological effects and fire use in forest. Here are five formulations of fire intensity from the literatures. The applicability of the formulations is examined by the burning test of korean pine plantation at Laoshan district, Maoer Mountain experimental forest farm of Northeast Forestry University in october 1985. It shows that potential fire intensity caculated by the formulations I=273h^2.17 and I=3（10h）² are lower, and by I=0.007Hwr（1-θ） and I=mcv are higher than the result by Byram’s I=0.007Hwr. It is pointed out that potential fire intensity as an index of fire intensity is convenient and safe in the forest fire control and use.更多还原