Еxpedition studies were conducted in order to take samples in the components of elementary landscapes - precipitation (snow), surface waters, roadside dust, soil, bottom sediments and sediments at the water's edge along the route of Shakhty (Eastern Donbass) – Margaritovo village (coast of Taganrog Bay) in the Rostov region. In the selected samples, the mass concentration of oil products (OP) was determined, the analysis of which showed that road dust and snow are one of the sources of soil pollution, surface water and bottom sediments. The following sequence of oil product content levels has been revealed as they decrease: road dust → soil → sediments at the water's edge → bottom sediments → snow → surface water, which persists at almost all but one station. The content of oil products in the soils of the region should be estimated as varying from acceptable to average, while the surface waters contained this pollutant in concentrations below the MPC for the waters of fish farms.

Keywords: elementary, landscape, natural components, oil products, Rostov region, road dust, soil, bottom sediments, snow, surface water

The geographical location, tectonic and geological-hydrogeological structure of the Maly Liman Lake basin, its landscape features as a natural monument of regional significance located on the area of the Abraus Peninsula of the Krasnodar Territory were described. The results of current bathymetry studies of the lake were shown. The hypothesis about tectonic origin of its hollow was justified. The sedimentations of the Maly Liman and Abrau lakes were tested and their description was fulfilled. By using radionuclide analysis the sedimentation rates were determined. Expedition work was carried out and a description of the outlets of the perched waters was made. The water balance development models of the of the Maly Liman Lake in the conditions of arid and relatively full-water period were constructed. The perched water dynamics of the upper reaches and surface run-off as the dominant supply sources of the lake was described. A hydrogeological section was constructed along the section of Lake Abrau – Lake Maly Liman. The existence of their hydraulic connection was proved, as well as the presence of two aquifers – the perched water and groundwater.

Keywords: Maly Liman, Limanchik, Abrau, water balance, sediment layers, bathymetry, ground waters, underground drain, mineralization, sedimentations

The paper considers the dynamics of drought periods based on meteorological data for a multi-year period. The research area covers the basins of the Sokolovsky reservoir and the Taganrog Bay. In the course of the study, the following tasks were performed: climatograms were constructed, a correlation analysis of the course of the total amount of precipitation and the course of average annual temperatures was performed, the deviation of air temperatures from the climatic norm for the considered areas was revealed. The tendency to increase the dry period in the Rostov region from north to south has been revealed, which may have an adverse effect on the hydrological regime of water bodies.

Keywords: dry period, Sokolov reservoir, Taganrog Bay, Rostov region, drought, climate, climate data, precipitation, air temperature

The Bolshoy Tambukan Lake bowl is located in an area of extremely favorable hydrological and hydrogeological conditions. This location contributes to natural permanent feeding of water through the atmospheric channel directly to the lake surface and through surface and underground runoff. The absence of a significant increase of the amount of precipitation based on an analysis of their trend in the period from 1911 to 2000 at the weather station "Pyatigorsk" is shown for the first time. An analysis of the results obtained for more than 30 years of observation at the Tambukan weather station indicates a slight increase in atmospheric precipitation, while the level of water in the lake was rised dangerously. One of the main reasons why increase in the water level in the lake happened is unreasonable anthropogenic impact. The lake area afforestation, creation of artificial dams, shafts and ditches in some areas on the shore of the lake lead to accumulation of large volumes of water due to rainfall which then is discharged into the lake through surface and ground runoff.

Keywords: sulphide therapeutic mud, Bolshoy Tambukan, atmospheric precipitation, groundwater level, surface runoff, ground runoff