The aim of the project is to assess the content, stocks and degree of stabilization and humification of soil organic matter in sub-Antarctic tundra ecosystems, by applying a range of field and analytical methods and through mathematical modelling. In addition, the joint studies will contribute to the preparation of an assessment of the regional contribution of Antarctic soils (following the example of Livingstone Island) to the global carbon balance.

Tasks of the study:

Conducting field surveys in the South Shetland Islands over several seasons to ensure maximum coverage for statistical validity of the results obtained, including in previously unexplored areas within logistical and transport accessibility.

Land cover mapping in key areas to assess soil heterogeneity, organoprofile morphology and organic matter stocks.

Evaluation of the structural composition of humic substances and the total stock of organic matter using nuclear magnetic resonance spectroscopy (13-C NMR). Study of the biochemical activity of molecules from different fractions of organic matter, by the method of electronic paramagnetic resonance spectroscopy.

Identification of the microbial biodiversity of subantarctic soils.

Survey of the vegetation cover of the islands of the archipelago and identification of correspondences and interactions of plant communities and soils.

Creating foundations for identifying the dynamics of organic carbon stocks in Antarctic soils under conditions of climate change and under the influence of the anthropogenic factor.

Complementing the information on the classification of Antarctic soils, taking into account the quality (C/N, group and fractional composition) and profile distribution of soil organic matter.

To assess the contribution of the study area to the carbon balance at the regional and global levels.