TY JOUR TI NATURAL REGENERATION OF SIBERIAN LARCH (LARIXSIBIRICA LDB.) IN THE STEPPE ARTIFICIAL PHYTOCENOSIS KW natural regeneration KW pure artificial phytocenosis KW Siberian larch (Larix sibirica Ldb.) KW maternal forest stand KW undergrowth KW steppe JO Bulletin of KSAU AU Kovylina, O.P. AU Kovylin, N.V. AU Terekhova, S.A. AU Sychev, N.N. AU Zhikhar, A.A. PY 2013 IS PB Krasnoyarsk State Agrarian University