Above-Ground Biomass and Greenhouse Gas Emissions Using Lidar Survey

Abstract

Space images from the Sentinel-2 satellite are a wide database for studying various attributes of large forest areas. One of these indicators is the aboveground biomass, which is related not only to the state and development of forests, but also to the accounting for carbon in them. To estimate the dynamics of the aboveground biomass, simultaneously with the method of field studies, methods in the field of remote sensing of the Earth were used. The study addresses the issues of assessing the carbon balance of forest areas. The article presents research methods, assessment of resources of a forest area, above-ground biomass of a forest stand, calculated the carbon stock in the biomass of forest stands by age groups of predominant species, and also calculated carbon absorption by a biomass pool. The necessity of carrying out calculations of carbon pools using various methods has been identified and justified. It has been established that plantations with a predominant species of small-leaved linden (12244.85 t C) have the largest carbon reserve in the study area, which is 77% of the total reserve. Coniferous plantations make up less than 1%. The calculation of the stock for the prevailing species per 1 ha showed that the highest value is characteristic of forests with a predominance of aspen - 245.59 tons C / ha and small-leaved linden - 235.75 tons C / ha. In the context of the average annual absorption of carbon, plantings with a predominance of linden also dominate - 4.0 tons C/ha.