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通过对不同强度春季火烧后当年恢复植被地上部分、枯落物、根系及土壤碳储量进行调查分析,结果表明:轻度火烧恢复植被和对照地上部分碳储量、根系碳储量和枯落物碳储量均高于重度火烧,对照枯落物碳储量高于两种火烧处理;不同强度地表火烧土壤碳储量在垂直空间的分布与对照一致,土壤碳储量随着土壤深度增加逐渐降低,其中,0~10 cm土层碳储量约占40%以上,该土壤深度碳储量轻度火烧>对照>重度火烧,10~20 cm和20~30 cm土壤碳储量重度火烧>轻度火烧>对照。研究不同强度火烧对于植被和土壤各碳库组分碳储量的影响,对于认识火干扰后植被生态系统碳储量时空变化及森林资源科学管理具有重要意义。
Through the investigation and analysis of the above-ground parts, litter, root system and soil carbon storage of the restored vegetation in the spring with different intensities, the results showed that the aboveground carbon storage, root carbon storage and litter carbon storage The carbon storage of the control litter was higher than that of the two kinds of fire treatment. The distribution of soil carbon storage in the vertical surface with different intensities of surface fire was consistent with that of the control. The soil carbon storage decreased gradually with the increase of soil depth, The soil carbon storage in 10 cm soil layer accounted for more than 40%, and the depth of soil carbon storage under mild fire> control> severe fire, 10-20 cm soil layer and 20-30 cm soil carbon storage area> mild fire> control. Studying the influence of different intensities of fire on the carbon storage of each carbon pool in vegetation and soil is of great significance for understanding the spatio-temporal changes of carbon storage and scientific management of forest resources after vegetation fire disturbance.