TY JOUR TI Water permeability of frozen ordinary chernozem and light-brown soils of the Lower Volga region under the influence of potassium carbonate KW permeability of frozen soils KW "barrier layer" infiltration properties of soils KW potassium carbonate KW speed of thawing of frozen soils KW percolation speed KW light-brown soil KW ordinary black soils KW enthalpy of aqueous solutions JO Forestry Engineering Journal AU Chalova, O.. PY 2014 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov