抄録
Fixation of CO2 by peat in the South Sarobetsu mire was estimated based on the rate of accumulation of peat. Carbon-14 in the remains of plants in the peat layer was measured for dating. The results showed that the thickness of the peat layer was from 2.7 to 4.5m, and that the rate of accumulation of the layer was 0.95 to 1.15m/y. The CO2 accumulation rate in the mire was estimated at 34, 000tons/yr by considering the physical and chemical properties of the peat and the accumulation rate.