EFFECT OF FOREST R. SERBIA ON CLIMATE CHANGE
The aim of this paper is to assess the above and belowground biomass in the forests managed by the State Enterprise "Srbijašume", taking into account the forest conditions existing on the day of 31st Dec. 2012. In order to achieve the set goal, the amount of live and dead wood and forest litter will be estimated, as well as the carbon stocks in the bioamass parts from the forests managed by the State Enterprise. Also, an analysis and evaluation of the organic carbon stocks in the forest land (overgrown and barren) used by SE "Srbijašume" will be made. The evaluation of carbon stocks in aboveground biomass (B) made on the level of "Srbijašume" was carried out according to the IPCC Guidelines (2003). Basically, for converting the obtained surveyed volume of wood to aboveground biomass the formula 3.2.3 of the IPCC Guidelines (2003) was used which, in addition to an expanded definition of biomass factor (BEFs), takes into account the density of wood D as well. By multiplying the estimated total aboveground biomass with the carbon fraction (CF) in the biomass the total carbon stocks (C) were determined. CF fraction is defined as the content of C per biomass unit and the most commonly used value is 0.5 (IPCC GPG, 2003). Underground root biomass was calculated in two ways: through the average ratio of the quantity of below- and aboveground biomass and according to the IPCC formula (2003). According to recommendations, carbon stocks in dead wood were roughly calculated for the biomass of dead wood in the amount of 25% of the aboveground biomass (IPCC, 2003). The content of carbon in forest litter for the area managed by SE "Srbijašume" was roughly calculated in a similar way like the content of carbon in the soil, based on the formulas recommended by the IPCC (2003). On the basis of all calculations, it was determined that the total amount of carbon bound in all analyzed biomass components in the forests managed by "Srbijašume" is 144,663,890 t. By its adequate forest management, SE "Srbijašume" contributing significantly to the improvement of the forest conditions, which indirectly reflects on the climate mitigation and environmental protection of our region.
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