TY JOUR TI THE DIAGNOSTICS OF THE LAYERED-ALLUVIAL HUMIC SOILS OF THE SOIL FORMATION PRIMARY TRUNKIN THE SELENGA RIVER DELTA KW delta Selenga KW soils KW morphology KW properties KW climate cyclicity JO Bulletin of KSAU AU Makushkin, E.O. PY 2014 IS PB Krasnoyarsk State Agrarian University