Carbon storage and carbon layer allocation of Pinus sylvestris var.mongolica plantation in Honghuaerji of Daxinganling Mountains
In this study,Pinus sylvestris var.mongolica plantation in Honghuaerji National Nature Reserve was selected as the research object to determinate carbon storage and distribution characteristics of carbon storage,by using the field measurement method.The results showed that:(1)Carbon storage of Pinus sylvestris var.mongolica plantation increased with the increase of forest age.(2)The variation rule of carbon layer storage in Pinus sylvestris var.mongolica plantation was as follows:underground>overground,soil layer>vegetation layer>litter layer.(3)Among the carbon storage in each layer of Pinus sylvestris var.mongolica plantation,the soil layer accounted for the largest proportion,the proportion of carbon stock in the 0-30 cm layer ranged from 76.97%to 80.18%,with the phenomenon of surface aggregation.(4)The carbon storage of tree layer was mainly concentrated in the trunk,which was characterized by net accumulation of carbon.Therefore,maintaining and increasing soil carbon income and fully utilizing its growth characteristics by adopting reasonable artificial cultivation and scientific management measures will play an important role in maintaining the carbon balance of the ecosystem.
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