Change of ecological and biological properties of light brown soils of Kalmykia at oil pollution is investigated. Negative influence of oil pollution on biological properties of light brown soils is studied. Influence of oil pollution on body height and development of plants is studied. Oil negatively influences such indicators of plants as the root length, the stalk length, the quantity of the sprouted plants, they decrease. It is proved that oil pollution of the light brown soil leads to change of physical and chemical properties of soils.
