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大兴安岭是我国大面积的国有林区,是重要的木材生产基地。该林区也是我国森林火灾严重的林区之一。每年春秋干旱、风大,是火灾的危险季节。该地区也是我国雷击火的主要发生区。 大兴安岭林区地广人稀、交通不便,森林火灾经常发生,据1971—1980十年火灾资料统计,森林火烧面积占全国森林被烧面积的1/2。因此,研究该区森林火灾与森林恢复之间的关系,对该区森林的发展,具有重要的意义。 大兴安岭林区森林火灾频繁发生是引起森林演替的重要因素之一。研究森林火灾与森林演替的方法很多。本文主要通过对森林火灾轮回期、树种对火的适应性等的分析,来探讨森林演替规律和用火恢复森林的途径。
Daxinganling is China’s large-scale state-owned forest, is an important timber production base. The forest area is also one of the most serious forest fires in our country. Spring and autumn annual drought, the wind is dangerous season of fire. This area is also the main area of lightning strike in our country. Daxinganling forest area sparsely populated, inconvenient traffic, forest fires occur often, according to 1971-1980 ten years of fire statistics, forest fire area accounted for the national forest burning area 1/2. Therefore, studying the relationship between forest fires and forest restoration in this area is of great significance to the development of the forest in this area. Forest fire in Daxing’anling frequent occurrence is one of the important factors causing forest succession. There are many ways to study forest fires and forest succession. In this paper, the author analyzes the law of forest succession and the ways of recovering the forest by fire through the analysis of the reactivation period of forest fire and the adaptability of tree species to fire.