INFLUENCE OF THE SMALL HYDROPOWER STATIONS ON THE HYDROLOGIC PROCESSES IN THE SERET RIVER (LEFT TRIBUTARY OF THE DNISTER RIVER)

EP.
2024;
: сс. 35-42
1
Ivan Franko National University of Lviv
2
Львівський національний університет імені Івана Франка
3
Ivan Franko National University of Lviv
4
Ivan Franko National University of Lviv

Sources of the Seret River are located near Ratyshchi village in Ternopil region. The river has the length of 248 km, the catchment area is about 3,900 km2. During the last 15 years seven small hydropower stations (SHPS) have been constructed in the Seret riverbed (Zahidhydroenergo, Velykohaivs’ka, Lux-2, Yanivs’ka, Chortkivs’ka, Bilche-Zolotets’ka, Bilche-Zolotets’ka-2, and Kasperivs’ka). Since all the SHPS are situated in the Seret riverbed and have a dam which decelerate water flow velocity, they influence the water runoff, sediments runoff, and water quality. After their building the cases of flooding of villages, overgrowing of the river bed reservoirs by algae plants became more often, and the long-term dynamics of the water and sediments runoff changed. To assess the water and sediments runoff changes in the catchment and to ascertain correlation between these changes and the SHPS the monitoring data sets of the Hydro-Meteorological Survey of Ukraine and the Carpathian Hydrological Observatory were analyzed. Recently the observations on the water runoff are implemented at two gauging stations: Velyka Berezovytsia village and Chortkiv city. The sediments runoff data are collected by the Chortkiv gauging station. The assessment of the water and sediments runoff changes in the Seret River in the period 1948–2022 and ascertaining of the role of water regulating by dams and reservoirs of small hydropower stations in the riverbed have been carried out. We also carried out a comparison of the sediments runoff module for the Seret River and the neighbouring Koropets River.

1. Andreychuk, Y., & Kovalchuk, I. (2004). Computer decryption of the satellite images for assessment of landuse structure influence on the erosion-accumulation processes distribution in the Koropets’ river basin. Hydrology, hydrochemistry and hydroecology, 6, 335–344.

2. Afanasyev, S., Hrytsenko, Y., Dan’ko, K., Zub, L., Levina, H., Letyts’ka, O., Matus, S., Petrosian, A., Pylypovych, O., & Stashuk, I. (2019). Scientific-methodical recommendations on preparation of the report on the environmental impacts of the small hydropower stations constructing. World nature fund Ukraine.

3. Khilchevskyi, V. K., Gonchar, O. M., Zabokrycka, M. R., Kravchynskyi, R. L., Stashuk, V. A., & Chunaryov, O. V. (2013). The hydrochemical regime and water quality of the Dniester surface water basin in Ukraine. - K.: Nika-Center.

4. Kovalchuk, I. (2013). Erosion processes of the Western Podillia: field, stationary, experimental and morphometric investigations. Liga-Press.

5. Kovalchuk, I., Pylypovych, O., & Andreychuk, Y. (2018). Quantitative assessment of the mechanical denudation in the Podillia part of the Dnister River (on example of the Koropets’ River).   Problems of geomorphology and paleogeography of the Ukrainian Carpathians and adjusting territories, 1(08), 57–68. doi: https://doi.org/10.30970/gpc.2018.08.2015

https://doi.org/10.30970/gpc.2018.08.2015

6. Kostiuk, O. (2013). Geological and geomorphological peculiarities in the Seret river basin. Bulletin of Taras Shevchenko National University of Kyiv, Geography, 1(61), 61–63. Retrieved from https://visnyk-geo.knu.ua/?page_id=3116&lang=en

7. Mykhnovych, A. (2019) Environment influence of the flood protection measures on the Dnister River near Sambir (Lviv region). Bulletin of the Lviv University. Series Geographic, 53, 233–239. doi: http://dx.doi.org/10.30970/vgg.2019.53

https://doi.org/10.30970/vgg.2019.53

8. Morozovs’ka, U., & Pylypovych, O. (2021). Hydroecological analysis of the Seret River. Problems of geomorphology and paleogeography of the Ukrainian Carpathians and adjusting territories. Scientific papers collection of the 12th international seminar, 97–100.

9. Pylypovych, O., & Morozovs’ka, U. (2023). Impact of the small hydropower station objects on the water quality in the Seret River (left tributary of the Dnister River). Geographic education and science: challenges and progress. Scientific papers collection of the International Conference dedicated to 140 anniversary of geography in the Lviv University, 18th-20th of May, 118–122.

10. Pylypovych, O., & Kovalchuk, I. (2017). Geoecology of the Upper Dnister River basin system. Ivan Franko National University of Lviv.

11. Tsaryk, L., Tsaryk, P., Vitrenko, I., & Tsaryk, V. (2023). From the history of the recent research of the geoecological problems of the Western Podillia small rivers. Scientific papers of the Volodymyr Hnatiuk Pedagogical University of Ternopil. Series Geography, 54(1), 4-12. doi: https://doi.org/10.25128/2519-4577.23.1.1

https://doi.org/10.25128/2519-4577.23.1.1