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以大兴安岭呼中林区不同强度的火烧迹地为研究对象,对森林地上植被(乔木层、灌木层和草本层)碳储量进行分层采样,采用异速生长方程和生物量收获法获得各层生物量并转换为碳储量,分析了不同火烧强度下研究区地上植被碳储量的差异.结果表明:火烧强度显著影响研究区森林地上植被碳储量,表现为未火烧>轻度火烧>中度火烧>重度火烧.相同火烧强度下,各林层碳储量变化状况表现为乔木层>灌木层>草本层.乔木层碳储量在不同火烧强度下表现为未火烧>轻度火烧>中度火烧>重度火烧;灌木层碳储量在不同火烧强度下表现为轻度火烧>未火烧>中度火烧>重度火烧;草本层的碳储量在不同火烧强度下表现为轻度火烧>未火烧>重度火烧>中度火烧.火烧强度显著影响森林生态系统乔木层和草本层的碳储量,对灌木层碳储量的影响不显著.
Taking the burned area with different intensities in Huzhong forest area of Daxing’anling as the research object, the carbon stocks of forest floor vegetation (arbor, shrub and herb) were stratified and sampled. Allometric biomasses The results showed that: the fire intensity significantly affected the carbon storage of forest plantations in the study area, which showed as follows: un-fired> mildly-burned> moderately-burned> Under the same fire intensity, the changes of carbon storage in each forest layer showed the characteristics of arbor layer> shrub layer> herb layer. The carbon storage of arbor layer showed as non-fire> mild fire> moderate fire> severe fire under different fire intensity The carbon storage of shrub layer showed mild fire> unfire> moderate fire> severe fire under different fire intensities. The carbon storage of the herb layer showed mild fire> unfire> severe fire> moderate fire under different fire intensity Fire intensity.The intensity of fire significantly affected the carbon storage of arbor and herb layers in forest ecosystem, but had no significant effect on shrub carbon storage.