Estimation of Carbon Emissions in Fires on Cuttings in Coniferous Forests of Central and South Siberia
A. V. BRYUKHANOV, S. V. VERKHOVETS
Abstract
Areas of unreforestated fillings in Siberia increase every year. The reserve of surface burning materials in them is often as large as 120 ton/ha. Therein, 70 % of fires arise in these areas, which exerts a strong influence on the carbon balance in the ecosystem. Our studies were carried out in continuous fellings in coniferous forests of the lower reaches of the Angara, Yenisei range and East Sayan. Estimation of biomass burning has demonstrated that in classes III - IV of fire hazard by weather conditions, fire emissions amounted to 20-28 ton/ha, in class V it was 30-35 ton/ha. Carbon "conservation" therein amounted to 15-35 ton/ha. The rate of the post-fire deposition of carbon depends on the success of reforestation which is determined by the further type of felling overgrowing and the availability of seed sources.
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