TY JOUR TI ENVIRONMENT-FORMING ROLE SQUAT ELM ULMUS PUMILA L. IN POSTAGRARIAN SUCCESSIONS ON FALLOW LANDS IN THE SOUTH OF CENTRAL SIBERIA KW squat elm KW field-protective forest strips KW undergrowth KW fallow KW overgrowth KW sanitary condition. JO Vestnik of Kazan State Agrarian University AU Martynova, M.A. PY 2023 IS 17 PB Kazan state agrarian University