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在大兴安岭阿龙山林业局的一个集水区，通过样地法（９６个样地），调查了大量的火疤木，研究了景观水平上的火状况。结果表明，由１８２５至１９９３年间研究样区共发生１４次火灾。火烧种类主要是地表火，但也有少量树冠火；火烧强度主要为弱度火；火场面积通常很大；火烧平均间隔期为３７ａ，火烧轮回期约３０ａ。这些指标对于大兴安岭北部林区有一定的代表意义。大兴安岭北部林区的火状况主要决定于兴安落叶松的抗火特性和森林群落的结构特性两方面。不同的林班、树种和兴安落叶松的不同的林型，火烧状况有一定的差别，这主要表现在比较干燥的立地火烧得更频繁些，而强度比较小一些。林中溪流对于绝大多数的火的蔓延，有很大的限制作用。
In a catchment area of Aalongshan Forestry Bureau in Daxing’anling, a large amount of fire scar wood was investigated through the plots method (96 plots), and the fire status at the landscape level was studied. The results show that a total of 14 fires occurred in the study area from 1825 to 1993. Fire types are mainly surface fire, but there are also a small amount of crown fire; fire intensity is mainly weak fire; fire area is usually large; the average fire interval is 37a, firing cycle is about 30a. These indexes have certain representative meaning for the forest area in the northern part of Daxinganling. The fire situation in the northern part of Daxinganling mainly depends on the fire resistance of Larix gmelinii and the structural characteristics of forest community. Different forest classes, tree species and Larix gmelinii different forest types, there are some differences in the fire condition, which is mainly manifested in the relatively dry site fire more frequently, while the intensity is relatively small. The streams in the forest have a great limiting effect on the spread of most fires.