TY JOUR TI THE ORGANIC SUBSTANCE OF SEPARATE GRANULOMETRIC FRACTIONS AND ITS ROLE IN THE ANTHROPOGENOUS DYNAMICS OF BROWN SOIL HUMUS CONDITION ON THE REINEKE ISLAND KW islands KW organic substance KW vegetation anthropogenesis KW granulometric fraction KW humus condition KW humus of separate granulometric fractions JO Bulletin of KSAU AU Latysheva, L.A. PY 2013 IS PB Krasnoyarsk State Agrarian University