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森林资源危机已成为我国林业当前的主要问题之一。特别是大兴安岭遭到“五·六”森林大火后森林资源损失严重。仅塔河林业局过火面积36.4万公顷,烧死蓄积1,124万 m~3,占全局开发初期总蓄积的五分之一,为了减少火烧木损失,国务院决定用两年半的时间将火烧木全部采下来。然而,这大量的烧死木蓄积在中度和轻度火烧林地中,采取什么样的集材工艺生产火烧木,能最大限度地保留活立木,促进火烧迹地更新;采取
The crisis of forest resources has become one of the major problems in forestry in our country. In particular, Daxinanling suffered serious losses of forest resources after the “May 6th” forest fire. Only the Tahe Forestry Bureau burned an area of 364,000 hectares and the volume of 11,124 million m 3 burned to death, accounting for one fifth of the total volume of the initial development of the whole territory. In order to reduce the loss of firewood, the State Council decided to use two and a half years to burn the firewood Mining down. However, this large amount of burnt wood accumulates in moderate and mildly burnt woodlands, and what kind of skidding technique is used to produce firewood can maximize the preservation of live wood and promote the renewal of fire;