ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA)
The relevance of the research is caused by the necessity of controlling hydrochemical parameters of large freshwater ecosystem for the objective estimation of waterbody transformation under the anthropogenic impact. The main aim of the research is to examine the spatial and temporal variability in...
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2022-10-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
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| Online Access: | http://izvestiya.tpu.ru/archive/article/view/3732/2815 |
| _version_ | 1811324269997588480 |
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| author | Vera I. Poletaeva |
| author_facet | Vera I. Poletaeva |
| author_sort | Vera I. Poletaeva |
| collection | DOAJ |
| description | The relevance of the research is caused by the necessity of controlling hydrochemical parameters of large freshwater ecosystem for the objective estimation of waterbody transformation under the anthropogenic impact.
The main aim of the research is to examine the spatial and temporal variability in major ion concentrations in Angara River water before regulating its flow by the Boguchany hydropower plants dam, as well as in Boguchany reservoir water during filling and water level stabilization.
Objects of the research are the Angara River before regulating its flow by the Boguchany HPP dam (2007), and Boguchany reservoir during filling (2013, 2014) and water level stabilization (2015, 2017).
Methods. Chemical analyses in the water samples were determined in the Centre for Collective Use «Isotope-Geochemical Research» of the IGC SB RAS (Irkutsk, Russia). Flame emission spectrophotometry was used in the analysis of Na+ and K+, atomic absorption spectrometry was applied to analyse Ca2+ and Mg2+, the turbidimetric method was used to measure SO42–, the titrimetric method was employed in the analysis of HCO3– and the mercurimetric method was applied to study Cl–.
Results. The spatial and temporal variability in the concentrations of cations (Ca2+, Mg2+, Na+, and K+) and anions (HCO3–, SO42–, and Cl–) was examined. The results of the study show that the increase in the water level led to changes in the major ion concentration ratio. In comparison with the Angara River, in the Boguchany reservoir operation, SO42–, Cl–, Na+, and Mg2+ concentrations increased, while HCO3– and Ca2+ concentrations decreased in the initial period of reservoir operation. The ionic composition of water in the Boguchany reservoir resulted primarily from the contribution from the area located upstream (runoff from the Ust-Ilimsk reservoir). Anthropogenic factors include wastewater and reservoir creation, which affect the hydrochemistry of major ions. |
| first_indexed | 2024-04-13T14:11:18Z |
| format | Article |
| id | doaj.art-cde12bd683bc49b780c068e72460de23 |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-04-13T14:11:18Z |
| publishDate | 2022-10-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-cde12bd683bc49b780c068e72460de232022-12-22T02:43:47ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302022-10-013331014615810.18799/24131830/2022/10/3732ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA)Vera I. Poletaeva0Vinogradov Institute of Geochemistry SB RAS; Irkutsk National Research Technical UniversityThe relevance of the research is caused by the necessity of controlling hydrochemical parameters of large freshwater ecosystem for the objective estimation of waterbody transformation under the anthropogenic impact. The main aim of the research is to examine the spatial and temporal variability in major ion concentrations in Angara River water before regulating its flow by the Boguchany hydropower plants dam, as well as in Boguchany reservoir water during filling and water level stabilization. Objects of the research are the Angara River before regulating its flow by the Boguchany HPP dam (2007), and Boguchany reservoir during filling (2013, 2014) and water level stabilization (2015, 2017). Methods. Chemical analyses in the water samples were determined in the Centre for Collective Use «Isotope-Geochemical Research» of the IGC SB RAS (Irkutsk, Russia). Flame emission spectrophotometry was used in the analysis of Na+ and K+, atomic absorption spectrometry was applied to analyse Ca2+ and Mg2+, the turbidimetric method was used to measure SO42–, the titrimetric method was employed in the analysis of HCO3– and the mercurimetric method was applied to study Cl–. Results. The spatial and temporal variability in the concentrations of cations (Ca2+, Mg2+, Na+, and K+) and anions (HCO3–, SO42–, and Cl–) was examined. The results of the study show that the increase in the water level led to changes in the major ion concentration ratio. In comparison with the Angara River, in the Boguchany reservoir operation, SO42–, Cl–, Na+, and Mg2+ concentrations increased, while HCO3– and Ca2+ concentrations decreased in the initial period of reservoir operation. The ionic composition of water in the Boguchany reservoir resulted primarily from the contribution from the area located upstream (runoff from the Ust-Ilimsk reservoir). Anthropogenic factors include wastewater and reservoir creation, which affect the hydrochemistry of major ions.http://izvestiya.tpu.ru/archive/article/view/3732/2815monitoringanthropogenic effectsreservoir fillinghydrochemistrymajor ions |
| spellingShingle | Vera I. Poletaeva ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA) Известия Томского политехнического университета: Инжиниринг георесурсов monitoring anthropogenic effects reservoir filling hydrochemistry major ions |
| title | ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA) |
| title_full | ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA) |
| title_fullStr | ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA) |
| title_full_unstemmed | ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA) |
| title_short | ANGARA RIVER HYDROCHEMICAL VARIABILITY WHEN BIULDING THE BOGUCHANY RESERVOIR (RUSSIA) |
| title_sort | angara river hydrochemical variability when biulding the boguchany reservoir russia |
| topic | monitoring anthropogenic effects reservoir filling hydrochemistry major ions |
| url | http://izvestiya.tpu.ru/archive/article/view/3732/2815 |
| work_keys_str_mv | AT veraipoletaeva angarariverhydrochemicalvariabilitywhenbiuldingtheboguchanyreservoirrussia |