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1987年5月6日大兴安岭特大森林火灾使森林生态发生了很大的变化。当然,对鼠类种群数量也有一定影响。1987年6月—1988年5月选该地区盘古二支线、沿江十二线、奋斗三支线为基本调查点,在不同坡度、坡向,坡位,分轻、中、重三个火烧等级进行调查。喜光的棕背奸已成为第一个优势种。过火的原始落叶松林鼠类数量高于未过火的;过火林的鼠类数量,依不同季节变化很大,10月份大幅度上升,10月份后又大幅度下降;未过火林内鼠类数量比较平缓。
May 6, 1987 Greater Khingan Range Forest fire makes a great change in forest ecology. Of course, the number of rodents also have some influence. From June 1987 to May 1988, the two sections of Pangu in the area, the 12th line along the Yangtze River and the 3 struggles of the coast were selected as the basic survey points, and were investigated at three fire levels of different slope, aspect, slope position, sub-light, medium and heavy . Hi light brownback has become the first dominant species. The number of rodent larvae overcrowded was higher than that not overdosed. The number of rodents overinflated forests varied greatly from season to season, and then increased sharply in October and dropped sharply in October. The number of rodents in the forest was not too low .