TY JOUR TI EXPERIMENTAL RESULTS OF THE TEMPERATURE EFFECT OF CRYOLITHOZONE SOILS ON THEIR PHYSICAL AND MECHANICAL PROPERTIES KW permafrost soils KW strength properties KW forest machines KW logging KW experimental research JO Forestry Engineering Journal AU Rudov, S.. AU Shapiro, V.Y. AU Grigorev, I.V. AU Kunitskaya, O.A. AU Grigoreva, O.. AU Storodubtseva, T.N. PY 2021 IS 10 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov