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火作为生态环境中敏感的因子越来越受到学者和公众的关注。火使植被的组成、结构、多样性及净第一性生产力(NPP)、土壤理化性质、大气成分及碳氮循环发生改变,由此形成火-植被-气候间复杂的关系,成为近年来全球变化研究的热点。很多研究表明火对泥炭沼泽的影响显著,火使沼泽变干,改变局地小气候,影响沼泽的自然发育过程。大兴安岭是我国寒温带针叶林分布的主要区域,也是火险高发区,区内典型贫营养泥炭沼泽广泛发育。林火发生后,一般在泥炭沼泽边缘熄灭。但在高强度林火及特别干旱的季节,泥炭沼泽地会发生地表火甚至地下火,地表植被被焚烧,从而影响植
As a sensitive factor in ecological environment, fire has drawn more and more attention from scholars and the general public. Fire makes the composition, structure, diversity and net primary productivity (NPP), soil physical and chemical properties, atmospheric composition and carbon and nitrogen cycle change, thus forming a complex relationship between fire - vegetation - climate, become global in recent years Change research hot spots. Many studies have shown that fire has a significant impact on the peat swamp, the fire makes the swamp dry, changing the local microclimate, affecting the natural development of the swamp. Daxinganling is the main area where the frigid coniferous forest distributes in China. It is also a high-risk area for fire danger. The typical impoverished peat swamp in the area is widely developed. After the fire broke out, it was generally extinguished on the edge of the peat swamp. However, in high-intensity forest fires and particularly dry seasons, surface fires or even underground fires occur in peat swamps and surface vegetation is burned, thus affecting the planting of