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大兴安岭地区是我国的重要木材生产基地之一,也是我国的重点火灾区。为了保护好该区的森林资源,控制森林火灾的发生,可对不同森林可燃物类型采取不同的防火措施。在森林火灾发生的过程中,可燃物类型不同,火行为、火焰高度、火的蔓延速度、火的强度等也不同,对森林的影响和损失就各异。因此,对森林可燃物类型进行研究具有重要意义。根据调查,在大兴安岭地区大致可以划分如下九种可燃物类型: 1.坡地落叶松林: 该类型在大兴安岭地区分布最广,面积最大,较陡的山坡或缓坡都有分布。林木组成以兴安
Daxinganling area is one of the important timber production bases in our country and also a key fire area in our country. In order to protect the forest resources of this area and control the occurrence of forest fires, different fire prevention measures can be taken for different forest types of combustibles. In the course of a forest fire, the types of combustibles are different, the fire behavior, the height of the flame, the speed of fire spread, the intensity of the fire and so on are different, and the impact and loss to the forest are different. Therefore, it is of great significance to study the types of forest combustibles. According to the survey, the following nine types of combustibles can be divided in the Daxinganling area: 1. Slope-larch forest: This type is widely distributed in the Greater Khingan Range and has the largest area and steeper slopes or gentle slopes. Forest composition to Xing’an