【摘要】 以大兴安岭林区兴安落叶松林、樟子松林和杨桦林中的草本、枯枝和半分解层为研究对象,采取外业调查取样及室内控制环境燃烧实验相结合的方法,分析了不同林型、不同可燃物燃烧过程CO2、CO、CxHy、NO和SO2释放量的差异。结果表明,草本燃烧CO2排放量阔叶林(杨桦林)大于针叶林(兴安落叶松林、樟子松),针叶林(兴安落叶松林、樟子松)枯枝CO2排放量大于阔叶林(杨桦林),而半分解层兴安落叶松林CO2排放量大于杨桦林和樟子松林。兴安落叶松林半分解层除NO释放量以外,其它四种气体与草本、枯枝无显著的差异。更多还原

【Abstract】 Using the method of field investigation and laboratory condition control burning experiments,the author of this article took grass,dead wood and semi-decomposed layer of Larch stand,Pinus sylvestris var.mongolica stand and poplar-birch stand in the Daxing’anling of Heilongjiang Province as research object,and analyzed the release capacity of CO₂、CO、CxHy、NO、SO₂ from different forest fuels and forest type.Results showed that the broad-leaved stands（poplar-birch stand） had more CO₂ emission from grass than that of the needle-leaved stands（larch stand,Pinus sylvestris var.mongolica stand）;and the needle-leaved stands（larch stand,pinus sylvestris var.mongolica stand） had more CO₂ emission from dead branches than that of the broad-leaved stands（poplar-birch stand）,but in semi-decomposed layer larch released more CO₂ than the other two kinds of forest type.Except NO emission from semi-decomposed layer,CO₂、CO、CxHy and SO₂ from grass and dead branches of larch stand made little differences.更多还原