During recent decades, studies of the carbon (C) balance of forest ecosystems have became more actual,
mainly in connection with the global increase of CO2 in the atmosphere. In the present study the stand
chronosequence approach was applied to analyse C sequestration dynamics. Study was made of C accumulation
both in biomass and in the soil in 6–60-year-old silver birch (Betula pendula) stands growing at
fertile (Oxalis) sites.