Assessment of the carbon stock and budget at the Grozny Green Zone carbon landfill site

The aim was to quantify the carbon stock and budget at the Grozny Green Zone carbon polygon site. The assessment of the carbon stock and budget was carried out on the basis of the ROBUL methodology, the software of which is publicly available on the website of the Centre for Environmental Problems of the Russian Academy of Sciences. To assess the carbon stock and budget, information from the State Forest Register (SFR) on species composition, areas and reserves of wood and categories of plantings was used. Instrumental measurement of CO 2 flows at the carbon polygon site was carried out using the turbulent pulsation method. For the carbon polygon site, the carbon stock was 207708 tons, while the carbon budget was 267 tons/year. Analysis of pulsation measurements showed that for 8 months of 2023 (April–November) CO 2 emission exceeded absorption. The maximum absorption of CO 2 occurs in May. This is due to the growth of biomass and photosynthesis processes. The maximum emission occurs in September. For a section of the site, calculated values of the carbon stock and budget for pools were obtained. Monitoring the flows of climate-active gases will make it possible in the future to create a database of runoff and emissions of greenhouse gases characteristic of the forest-steppe zone of the Chechen Republic, with the possibility of subsequent interpolation of data to representative regions.