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Анотація
THE ASSESSMENT OF THE CARBON AND ENERGY CONTENT IN THE ABOVEGROUND PHYTOMASS PINE STANDS IN THE NORTHERN STEPPE OF UKRAINE
V. Lovynska, P. Lakyda
Abstract. The estimation of the main carbon flow accumulation in aboveground biomass in the various components of pine stands of the Northern Steppe of Ukraine is given. The contribution of pine stands in the different age groups in the carbon reservation was investigated. The key role of the stem wood biomass component in carbon sequestration in plantations is shown. It is determined that the carbon budget in pine plantations of Northern Steppe is maximum in the middle-aged stands 41-60 years. These stands accumulation almost the half of carbon stock. The increase in carbon sequestration is observed not only in the stem wood, but also in other components of biomass such as bark, branches and needles. It was investigated that the minimum carbon (0.2 %) accumulate youngest age group stands of pine plantations in their phytomass. Generally found that phytomass coniferous stands in Northern Steppe accumulated 1134.14 t C.
The results of the evaluation of the energy content in the aboverground phytomass of pine trees in the study region is given. It is established that the energy potential of carbon accumulated in phytomass of pine stands is 40556.84 GJ. The analysis aboveground biomass components by the fraction showed that the maximum amount of energy concentrated in wood of stem, whereas the minimum have the green mass of the pine trees.
Keywords: age structure, biomass components, depositing carbon, energy potential, Pinus sylvestris L., Northern Steppe of Ukraine.
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