Influence of long-term donor irrigation on quality of underground water in the south-steppe zone of Ukraine (case of the Baraboy River, Odessa Region)
Journal Title: Український гідрометеорологічний журнал - Year 2018, Vol 21, Issue 21
Abstract
The article presents the results of in-situ studies of the chemical composition and quality of underground (subsoil and artesian) water within the basin of the Baraboy River where irrigation of agricultural areas using the water resources of the Dniester River has been carried out since 1967. These water resources are fed into the network of reservoirs and channels of the Lower Dniester Irrigation System. Filtration losses of water from irrigation areas and water supply and sewage systems of settlements replenish the reserves of underground (subsoil) waters increasing the ingress therein of dissolved substances from the sedimentary rocks which leads to increase in the concentrations of certain ingredients included in chemical composition of surface and underground waters within the basin of the Baraboy River. It is shown that groundwater is enriched with nitro-gen compounds containing high concentrations of chlorides, sulfates, calcium and magnesium. Mineralization, toxicity and degree of contamination of underground water increase along the length of the Baraboy River. The chemical composition of the groundwater coming to the riverbed of the Baraboy River does not meet the fishing requirements and worsen the water quality of fish farming water bodies. The results of assessment of groundwater quality at the stations under study give reason to consider these sources of groundwater as an important factor affecting the hydrochemical regime and the quality of the water of the Baraboy River and its reservoirs which should be taken into account when developing the recommendations for optimization of the current hydroecological state of the Baraboy River as a whole. If high mineralization and significant content of principle ions in groundwater can be explained by natural factors, the high level of contamination by biogenic substances is resulted from entering of industrial, domestic and return waters from irrigated areas into aquifers. Such contamination is not a temporary but a permanent phenomenon. In terms of magnesium content artesian waters used for utility and drinking water supply are recognized as «mediocre, suitable with limitations and having undesirable quality». In addition, after 50 years of operation compounds of nitrogen and phosphorus were found in artesian water, and this was not a case in 1960s of the last century. A conclusion on the negative effect of long-term donor irrigation on the quality of underground water and on the need for additional treatment of water of artesian aquifers of the Sarmatian Stage used for centralized water supply was made.
Authors and Affiliations
N. S. Loboda, Ya. S. Yarov
Keywords
Related Articles
- EP ID EP528707
- DOI 10.31481/uhmj.21.2018.07
- Views 76
- Downloads 0
Evaluation of influence of irrigation using the resources of donor river (the Dniester) on characteristics of the annual water runoff of the Baraboy River
The article assesses the characteristics of the annual runoff of the Baraboy River (the Odessa Region), which remains unexplored from the hydrological point of view, under natural conditions and those affected water-rela...
Method of forecasting assessment of the maximum runoff characteristics of the Dnipro Basin's rivers in spring season
Introduction. In Ukraine, under the conditions of current climate variability, the water content of the rivers, including the period of spring flood, changes. Against the background of the general tendency of reduction o...
Prospects of exchange of marine technology in the field of ecological and oceanological research
“Global Ocean Science Report: The Current Status of Ocean Science around the World” published in 2017 by the Intergovernmental Oceanographic Commission of UNESCO was a first consolidated assessment of the ocean science a...
Aerosols dynamics in the atmosphere over Eastern Europe by means of AERONET according to weather conditions during summer 2010
Introduction. Aerosols in the Earth's atmosphere are not only air pollutants but also a factor that affects the climate. The study of the dynamics of aerosol layer properties and aerosol particles properties, and reveali...
Analysis of climate change in Dnipropetrovsk Region
The decision about writing this article was made after familiarization with the "Brief Climatic Essay of Dnepropetrovsk City (prepared based on observations of 1886 – 1937)" written by the Head of the Dnipropetrovsk Weat...