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oa Estimation of Carbon Sequestration Potential by Soils of the Forest-Steppe of Ukraine Based on the Use of Geoinformation Technologies and Remote Sensing Data
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 17th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, Nov 2023, Volume 2023, p.1 - 5
Abstract
The leading role of soils in carbon sequestration is undeniable, wherein sequestration occurs most intensively in soils that have lost a large amount of carbon during degradation processes. At the same time, the issue of separation of eroded soils and sloping soils is important for Ukraine because sloping soils have different accumulation potential of soil organic carbon (SOC). The potential for carbon sequestration (CSP) by soils is proposed to be estimated by the difference between the potential content of SOC for specific landscape conditions and the content of SOC at the time of assessment. The research was carried out at a polygon located in the Kharkiv region. On the polygon 57 soil samples were taken on a grid with a step of 100 m. All samples were determined SOC. al. The actual SOC map was obtained by using the geoformula transformation of space images from the Sentinel 2A satellite. The potential SOC content map was obtained by using the technique of geoinformation analysis of the relief proposed by the authors. As a result of the algebraic subtraction of these two maps, the map of the CSP was obtained. Analysis of this map shows that although the weighted average CSP for experimental sites is 36,1 t/ha, the CSR values vary over a wide range from 11,3 to 64,4 t/ha. Thus, for the correct estimation of soil CPS, it is strongly recommended to take into account the spatial heterogeneity of soil formation conditions.
