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研究大兴安岭林火历史,了解森林火灾发生发展规律,火灾时空变化,对该地区的主要树种兴安落叶松的更新生长发育和今后该林区林火管理都具十分重要意义。得耳布尔林业局位于大兴安岭的西北部,始建于1958年。笔者在该林业局不同地区选择6株被火烧过的兴安落叶松并伐倒。其中除一株树心腐朽查不出年龄外,最大一株为262年,最小一株185年,其余数株年龄分别为258、210、199年(见下表)。从火疤树分析,森林火灾发生在1741～1940年的200年内,分为四个时期:第一期1741～1800年共60年,发生火灾6次,占火疤树所记载的火灾总次数的21.4%;第二期1801～1850年共50年,发生
Studying the history of forest fire in Daxing’an Mountains, understanding the law of forest fire and the temporal and spatial changes of fire, are of great significance to the renewal growth and development of Larix gmelinii, the main tree species in this area, and the forest fire management in the future. Dairbure Forestry Bureau is located in the northwest of the Greater Khingan Range, was founded in 1958. The author chose 6 different parts of the Forestry Bureau were burned Xing’an larch and cut down. Among them, except for the decay of a tree center, the largest strain was 262 years and the smallest strain was 185 years. The remaining strains were 258, 210 and 199 years old (see the table below). From the analysis of fire scar tree, the forest fire occurred in 200 years from 1741 to 1940 and was divided into four periods: the first period from 1741 to 1800 was 60 years, and the fire occurred 6 times, accounting for the total number of fire records in fire scar tree Of the 21.4%; the second period of 1801 ~ 1850 a total of 50 years, occurred