【摘要】 大兴安岭是我国森林火灾严重地区之一,为了减轻森林火灾的损失,当地进行了多年的计划烧除,这一技术对减少大兴安岭森林火灾的危害起到了重要作用。但随着全球气候变暖,大兴安岭高纬度多年冻土退化和原始湿地萎缩、新生湿地扩大等环境问题开始得到关注,计划烧除对当地冻土、湿地的影响问题也显现出来,本文通过分析计划烧除与冻土、湿地的关系,提出计划烧除可能会对冻土、湿地环境产生影响,并提出可在一些地区探讨替代计划烧除的方法。更多还原

【Abstract】 Daxinganling Mountain is one of the region where happened the most serious forest fire disaster.As to diminishing the loss in the forest fire,they have implemented prescribed burning for many years,and it has effect on the harm of the forest fire.However,as the global climate becomes warm,we begin to pay more attention to the environmental problem such as degeneration of the permafrost and reduction of the primitive wetland or the expansion of the new wetland.The problem about influence of the prescribed burning on the permafrost and wetland came out.In the passage,through analyzing the relationship between the prescribed burning and permafrost and wetland.It revealed the influence of prescribed burning on permafrost and wetland,and put forward the method to Substitute prescribed burning in some area.更多还原