TY JOUR TI RESTORATION OF MAIN FOREST FORMING SPECIES AND LIGHT REGIME IN FOREST BELTS OF STONE STEPPE KW forest belts KW plantation structure KW undergrowth KW oak KW European ash KW fluffy ash KW ash-leaved maple KW forest-forming process KW forest edges JO Forestry Engineering Journal AU Rybalkina, N.V. AU Tunyakin, V.D. AU Popov, A.V. AU Shenshin, L.M. PY 2020 IS 9 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov