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对大兴安岭呼中林区不同年份火烧迹地的粗木质残体特征进行了研究.结果表明:呼中林区火烧迹地粗木质残体贮量在24.87～180.98m3.hm-2,其中倒木和枯立木分别为6.03～93.91m3.hm-2和15.29～138.37m3.hm-2,且不同年份火烧迹地之间差异显著;倒木、枯立木所占比例分别为24.26%～86.00%和14.01%～75.4%,且不同年份火烧迹地之间差异显著;倒木和枯立木的优势径级分别为2.50～20cm和1.50～15m,优势长度分别为2.50～15cm和5～20m;随着火烧迹地的恢复,粗木质残体贮量的动态变化不明显.粗木质残体特征与火前林分条件和火烧强度密切相关.
The characteristics of coarse woody debris burned in Huzhong forest area of Daxing’anling in different years were studied.The results showed that the amount of coarse woody debris burned in Huzhong forest area ranged from 24.87 to 180.98m3.hm-2, Which were 6.03 ~ 93.91m3.hm-2 and 15.29 ~ 138.37m3.hm-2, respectively, and the differences were significant in different years. The proportions of fallen wood and dead wood were 24.26% ~ 86.00% and 14.01% ~ 75.4% , And the difference between the burned areas in different years was significant. The dominant diameter classes of fallen wood and dead wood were 2.50-20 cm and 1.50-15 m respectively, and the dominant lengths were 2.50-15 cm and 5-20 m, respectively. With the restoration of the burned area, The dynamic changes of residual volume were not obvious.The characteristics of coarse woody debris were closely related to the pre-fire stand conditions and fire intensity.