TY JOUR TI The influence of chemical treatment of young stands on pine layer in formed middle-aged mixed forest stands KW pure and mixed forest stands KW chemical treatment KW thinning KW width of the growth ring KW early and late wood KW the density of timber KW growing stock. JO Forestry Engineering Journal AU Martynov, A.N. AU Danilov, D.A. AU Beliaeva, N.V. AU Zaytsev, D.A. PY 2015 IS 5 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov