A study of significant factors affecting the quality of water in the Oskil river (Ukraine)

Authors

DOI:

https://doi.org/10.15587/1729-4061.2016.72415

Keywords:

quality, degradation processes, climate change, hydrological parameters, correlation

Abstract

The study has explored climate shifts in the Kharkiv region and changes in the hydrological indices of the Oskil river in Ukraine. Predictive models were constructed by the Holt­Winters method. The findings show an expected gradual increase in temperature by 1.9 °C – from 7.8 °C to 9.7 °C – in 2020, which can lead to a decrease in precipitation, the runoff volume, and water consumption. It also has a significant adverse impact on the formation of surface water quality and on the development of infestations. Natural and anthropogenic factors that have the most significant effects on the hydrochemical characteristics of the Oskil river were specified by a multivariate correlation and regression analysis.

The research findings show that the quality of aquatic sites is most affected by wastewater discharges and an increase in air temperature, which testifies to the need of reducing loads from industrial facilities and utilities. The study takes into account landscape and environmental characteristics of the river basin. We have assessed rationality of using the basin catchment area on the basis of exponents such as tillage, urbanization, the volume of water consumption, forest cover, meadow cover, lake cover, and changes in the hydrological characteristics that influence the development of the intensity of degradation processes. The assessment of the processes of ravine formation, land erodibility, silting and waterlogging of small rivers in the Oskil river basin has shown a significant increase in the intensity of the degradation processes compared to 1990, which requires applying environmental protection measures to improve the situation. The ranking of the small rivers in the Oskil river basin by the index of process development helps prioritize the funding of environmental protection measures.

Author Biographies

Alexander Vasenko, Ukrainian Scientific Research Institute of Ecological Problems Bakulina str., 6, Kharkiv, Ukraine, 61166

Candidate of biological science, Associate professor,

Laboratory of research of ecological sustainability of the objects of the environment and natural areas of special protection

Olga Rybalova, National University of Civil Defense of Ukraine Chernishevskaya str., 94, Kharkiv, Ukraine, 61023

PhD, Associate Professor

Department of Labour Protection and technogenic and ecological safety

Oksana Kozlovskaya, Ukrainian Scientific Research Institute of Ecological Problems Bakulina str., 6, Kharkiv, Ukraine, 61166

Postgraduate student

Laboratory of research of ecological sustainability of the objects of the environment and natural areas of special protection

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Published

2016-06-30

How to Cite

Vasenko, A., Rybalova, O., & Kozlovskaya, O. (2016). A study of significant factors affecting the quality of water in the Oskil river (Ukraine). Eastern-European Journal of Enterprise Technologies, 3(10(81), 48–55. https://doi.org/10.15587/1729-4061.2016.72415

Issue

Vol. 3 No. 10(81) (2016): Ecology

Section

Ecology

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Copyright (c) 2016 Alexander Vasenko, Olga Rybalova, Oksana Kozlovskaya

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