METHOD OF BIOLOGICAL RESTORATION OF FERTILE LANDS POLLUTED WITH OIL- FIELD FORMATION WATER IN STEPPE, FOREST STEPPE, AND NEAR-DESERTS ZONES (VERSIONS)

摘要

FIELD: environment protection. SUBSTANCE: known methods do not result in complete and efficient restoration of fertile lands. Invention is aimed at dealkalinization and desalinization of polluted lands with displacement of exchange sodium from soil-absorbing complex with replacing it by calcium. Such aim is achieved owing to that, in a method of biological restoration of lands including stepwise, for a number of years, agrotechnological and phyto-melioration purification of lands by way of water retention and water accumulation, introducing chemical melioration agent, sowing salt-resistant grasses. Depending on degree of pollution with oil-field formation water, a number of procedures corresponding to each year are executed annually including a variety of agrotechnological and phyto-melioration operations in predetermined succession. EFFECT: increased restoration efficiency.