Abstract
One of the important forest-climatic research areas is the study of soil carbon level in different types of forest soils with the prospect of developing effective measures to solve the problem of forest management in terms of reducing the effects of climate change. In this regard, monitoring of forest ecosystems for absorption of greenhouse gases and justification of measures to increase this capacity is relevant in carbon polygons and in the establishment of carbon farms. The assessment of carbon stock in the topsoil and structural-aggregate composition was carried out on the basis of field and laboratory studies at the site of carbon polygon No. 4 Forest (19, 20 quarters). In the course of research, the highest carbon content in the upper soil layer 0–20 cm of the studied soils in the profile of chernozem podzolized – 11.31 kg C/m2 , lower content of organic carbon in light gray forest soils – 5.26 kg C/m2 . It was revealed that the total stock of organic carbon in the upper soil layers of the carbon polygon on the territory of Dmitrievskoye forest lot is 8134.19 tons (813.42 kg C/m2 ), the greatest contribution is made by chernozem podzolnyi and dark gray forest soils. As a result of studies on the presence of nitrogen in the forest area fall, it was revealed that the linden stand contains 2.04, and birch stand – 1.43 % per 100 g of dry matter.
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