Formation of the hydroecological structure of the Ivankovskoye reservoir in the summer period in adjacent years with different weather conditions
Year: 2024
Type: article
Abstract: The article examines the conditions for the formation of the hydroecological regime of the Ivankovo Reservoir according to data from complex hydrological, hydrochemical and hydrobiological surveys carried out in August 2020–2022. The identified differences in hydroecological characteristics are associated with the peculiarities of weather conditions in the summer seasons. Despite the significant flow of the reservoir, in its bottom layer during prolonged hot weather the formation of oxygen-free conditions is possible, affecting exchange processes with the bottom, hydrobionts and methane emissions. Increased bioturbation of bottom sediments by benthos under oxygen deficiency activates metabolic processes at the water-bottom sediments boundary, including the release of methane. A strong “bloom” of the reservoir, characteristic of hot weather conditions in 2022, led to a reduction in the specific flux of methane from the surface due to its oxidation with an excess of oxygen in the surface layer.
Language: English
Subfield: Environmental Chemistry
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4405777841