The climate change impact on the hydrological regime of the rivers in Belarus

А. А. Волчек, С. В. Сидак, С. И. Парфомук, Н.Н. Шешко. ВЛИЯНИЕ КЛИМАТИЧЕСКИХ ИЗМЕНЕНИЙ НА ГИДРОЛОГИЧЕСКИЙ РЕЖИМ РЕК БЕЛАРУСИThe article evaluates the changes in the parameters of the annual runoff, the maximum spring flood runoff and the main runoff-forming factors for the period 1988-2018 in relation to the period 1949-1987. The observed over the past decades climatic changes significantly change the situation of the spatio-temporal variability of the maximum runoff. Changes in the annual runoff for most catchments of Belarus are statistically insignificant. The main climatic factors determining the spring flood runoff are precipitation during the winter and spring periods, and the air temperature of the winter period. Taking into account the multi model ensemble of four climate change scenarios, the forecast estimates of the annual and maximum runoff for the period up to 2035 are obtained

Environmental problems caused by the extraction of non-metallic building materials from riverbeds

А. А. Волчек, С. И. Парфомук, Н. Н. Шешко, Н. Н. Шпендик, Д. Н. Дашкевич, С. В. Сидак, М. Ф. Кухаревич, И.Н. Розумец. ЭКОЛОГИЧЕСКИЕ ПРОБЛЕМЫ, ВЫЗВАННЫЕ ДОБЫЧЕЙ НЕРУДНЫХ СТРОИТЕЛЬНЫХ МАТЕРИАЛОВ ИЗ РУСЕЛ РЕКExtraction of non-metallic building materials from rivers can lead to negative consequences, such as disruption of the structure of the river bed, change in the balance of sediment intake. It can also lead to the undermining of the fish food supply, destroy spawning grounds, and reduce the ability of the river to self-purification. Data for the section of the Pripyat River at the Lubansky Bridge for the period from 1978 to 2018 were used. To study the impact on the river ecosystem of the planned work on the extraction of non-metallic building materials, an approach was used to determine the ecological runoff when a natural speed regime is formed, which ensures the natural functioning of the ecosystem. Digital models of the bottom relief in 2021 and 2022 showed a positive trend in the formation of sediments in the studied area. The volume of possible material intake was established, which amounted to 33122.5 m3. At the same time, the estimated volume of sediment formation within this site is 11034 m3 per year, then it is possible to carry out work on the intake of non-metallic building materials on the studied section of the river no more than once every three years

Оценка влияния рыбхоза «Красная Слобода» на сток реки Морочь

Волчек А. А., Парфомук С. И., Шешко Н. Н., Шпендик Н. Н., Дашкевич Д. Н., Сидак С. В., Кухаревич М. Ф. Оценка влияния рыбхоза «Красная Слобода» на сток реки МорочьA comprehensive assessment of the impact of the Krasnaya Sloboda fish farm on the hydrological regime of the Moroch River in the calculated areas was carried out. The following methods were used in the work: field research, desk data processing, geographical analysis, statistical analysis, regression analysis, water balance calculations. The analysis of the hydrological regime of the calculated sections of the river used for the needs of the fish farm made it possible to determine the minimum average monthly water consumption of 95% probability of excess and ecological runoff, taking into account the intra-annual distribution of runoff. For the central section of the Krasnaya Sloboda fish farm, the permissible volume of withdrawal of water resources from the Moroch River has been determined

Гидрологические характеристики рек Национального парка «Беловежская пуща»

Волчек А. А., Савич-Шемет О. Г., Шешко Н. Н., Парфомук С. И., Шпендик Н. Н., Дашкевич Д. Н., Сидак С. В., Кухаревич М. Ф. Гидрологические характеристики рек Национального парка «Беловежская пуща»The article presents analysis of modern hydrological characteristics of the of Bialowieza Forest rivers’ during the period of instrumental observations and provides a water regime’s forecast assessment of the research territory. The database of Bialowieza Forest rivers’ hydrological characteristics was updated with the help of GIS