TY JOUR TI INFLUENCE OF SUCCESSION AND FALLOW AGE ON THE EXCHANGEABLE ACIDITY OF GRAY FOREST SOIL IN THE SUBTAIGA ZONE OF THE TRANS-URALS KW herbalist deposit KW gray forest soil KW metabolic acidity KW succession KW agrogenic factor KW coniferous deposit JO Bulletin of KSAU AU Saharov, A.V. AU Sakharova, V.V. AU Eremin, D.I. PY 2026 IS 0 PB Krasnoyarsk State Agrarian University