TY CONF TI PROSPECTS FOR THE DEVELOPMENT OF MATHEMATICAL MODELS OF THE IMPACT OF FOREST MACHINERY PROPELLERS ON THE SOILS OF THE FAR NORTH KW forest machinery KW soils KW permafrost KW the Far North JO ENERGY-SAVING AND ENVIRONMENTALLY SAFE TECHNOLOGIES OF THE TIMBER INDUSTRY – 2025 AU D'yachenko, V.M. AU Gur'ev, A.Y. AU Novgorodov, D.V. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov