THE PROBLEM OF “SALINE CONTAMINATION” OF NATURAL WATERS OF ROSTOV REGION, CONFINED TO THE IRRIGATED AREA

Purpose: analysis of problematic issues associated with the hydrochemistry natural waters and processes occurring in irrigation systems Rostov region. Discussion. The specificity growing crops irrigated agriculture has led to formation significant volumes drainage waste water (58676.5 thousand cub. m at level 2019). quality wastewaters is determined by groundwater intakes a seasonal character. In operation Central zone, an unregulated inflow salt-forming ions into inlets was noted, their concentration places where wastes are discharged small bodies Lower Don (for example, Kostylevsky pr., Kolodezki ur., Solenaya river, erik Besheny) differs little from background geochemical concentrations corresponds saline studied objects. Since objects negative impact on environment, uncontrolled migration adjacent environments combination desalinization during period violations ecological legislation land reclamation agricultural supply departments terms exceeding standards maximum permissible for fishery purposes, approved Order Ministry Agriculture 13.12.2016 no. 552. Conclusions. Regularities media have been revealed. It that one sources agents “saline contamination” groundwater. Hydrochemical materials regulatory legal acts protection use indicate need establish admitted chemical substances disposal, taking account regional (nominally natural) hydrochemical climatic characteristics differentiated each body.