%0 Journal Article %T Thermal polarization mechanism of sap flow during the spring equinox %A Kamalova, N.. %A Evsikova, N.. %A Matveev, N.. %A Lisitsyn, V.. %K thermal polarization phenomena, temperature change of the environment, transport of water in the xylem, spring sap flow, osmotic pressure. %J Forestry Engineering Journal %D 2015 %N 4 %P 9 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov