TY JOUR TI ECOLOGICAL ASSESSMENT OF SOIL COVER OF CERVINE PASTURES OF THE YAMAL PENINSULA CONDITION KW soils KW technogenic impurity KW the en-vironment reaction KW iron KW oil products KW grain size distribution JO Bulletin of KSAU AU Skipin, L.N. AU Galyamov, A.A. AU Gaevaya, E.V. AU Zakharova, E.V. PY 2016 IS PB Krasnoyarsk State Agrarian University