摘要
为找到最佳的林火预防与扑救方法,以塞罕坝机械林场落叶松、樟子松林为研究对象,通过调查测定林内凋落物、灌木、草本数量,对针叶林不同年龄阶段林分可燃物载量进行分析研究。结果表明,华北落叶松和樟子松的成熟林中可燃物载量最高,分别达到40.42t/hm2、21.57t/hm2,极易引发森林火灾。其次是幼龄林,可燃物载量分别达到29.63t/hm2、19.09t/hm2;中龄林的可燃物载量相对偏低,分别为16.30t/hm2、20.82t/hm2。因此,对不同林龄的地表枯落物需采取不同的管理方式,以有效遏制森林火灾的发生。
With the pine and larch in Saihanba Mechanized Forestry Farm as an example,the forest fuel load of coniferous forest in different ages was analyzed through determination of the litter,investigation shrubs and herbaceous in this paper.The results showed that the maximum amount of mature forest fuel load of Larix principis-rupprechtii and Pinus sylvestris var.mongolica was 40.42t/hm2 and 21.57t/hm2,which can easily lead to forest fires,followed by the young forest,reaching relatively low fuel load of 29.63t/hm2 and19.09t/hm2,and the middle-aged forest reaching the minimum fuel load of 16.30t/hm2 and20.82t/hm2.Therefore,the surface of forest litter at different stand age needs different management approaches to effectively curb the occurrence of forest fires.
出处
《河北林果研究》
2014年第2期138-140,共3页
Hebei Journal of Forestry and Orchard Research
