Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia)
The article presents the results of researches on the content of ions, biogenic and organic substances in the system «snow on ice – ice – under the ice water» in two lakes – Munozero and Urozero (Russia, Republic of Karelia), conducted in February 2019. Since the beginning of the 1990s, the southern...
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Nauka
2020
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Online Access: | https://doi.org/10.31857/S2076673420040063 https://doaj.org/article/c5e6bd9d9e9447979fbfbb67b8135b40 |
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ftdoajarticles:oai:doaj.org/article:c5e6bd9d9e9447979fbfbb67b8135b40 2023-05-15T17:01:07+02:00 Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia) A. V. Sabylina T. A. Efremova O. I. Ikko 2020-11-01T00:00:00Z https://doi.org/10.31857/S2076673420040063 https://doaj.org/article/c5e6bd9d9e9447979fbfbb67b8135b40 RU rus Nauka https://ice-snow.igras.ru/jour/article/view/844 https://doaj.org/toc/2076-6734 https://doaj.org/toc/2412-3765 2076-6734 2412-3765 doi:10.31857/S2076673420040063 https://doaj.org/article/c5e6bd9d9e9447979fbfbb67b8135b40 Лëд и снег, Vol 60, Iss 4, Pp 592-600 (2020) биогенные вещества гидрокриогенная система ионный состав коэффициент вовлечения лёд мунозеро органические вещества подлёдная вода снег урозеро Science Q article 2020 ftdoajarticles https://doi.org/10.31857/S2076673420040063 2023-03-19T01:40:11Z The article presents the results of researches on the content of ions, biogenic and organic substances in the system «snow on ice – ice – under the ice water» in two lakes – Munozero and Urozero (Russia, Republic of Karelia), conducted in February 2019. Since the beginning of the 1990s, the southern and south-western parts of the catchment and the water area of Lake Munozero have been undergone the anthropogenic impact by discharges of domestic waste waters and feed from the trout farm. Influence of human activities upon the Lake Urozero is negligible. Composition of its under-ice water is bicarbonate-calcium. Among the inorganic forms of nitrogen-containing compounds in snow, ice and the under-ice water, the nitrate ion prevails (85%). High concentrations of total phosphorus (up to 10 μg/l) and organic nitrogen (up to 0.19 mg/l) in the lower layers of ice in the system “ice-water” for the Lake Munozero are comparable with the content of them in the under-ice water. The ice cover of both lakes Munozero and Urozero is characterized by a low content of organic carbon (on average, 1.0 and 0.8 mg/l), while in the under-ice water its concentration is 4 and 2 times higher, respectively. To determine the intensity of the involvement of dissolved substances into the ice in combination with ice-forming water, the coefficient of involvement Kv was used. Studies have shown that among the cations in the ice of both lakes, potassium is more involved, while among the anions this is the sulfate ion. In Lake Munozero, undergone the anthropogenic effects, the concentration of chlorine ions in the ice changes from 0.2 to 0.5 mg/l (17 and 36%‑eq). Article in Journal/Newspaper karelia* Republic of Karelia Directory of Open Access Journals: DOAJ Articles Munozero ENVELOPE(34.672,34.672,67.070,67.070) Ice and Snow 60 4 592 600 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
биогенные вещества гидрокриогенная система ионный состав коэффициент вовлечения лёд мунозеро органические вещества подлёдная вода снег урозеро Science Q |
spellingShingle |
биогенные вещества гидрокриогенная система ионный состав коэффициент вовлечения лёд мунозеро органические вещества подлёдная вода снег урозеро Science Q A. V. Sabylina T. A. Efremova O. I. Ikko Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia) |
topic_facet |
биогенные вещества гидрокриогенная система ионный состав коэффициент вовлечения лёд мунозеро органические вещества подлёдная вода снег урозеро Science Q |
description |
The article presents the results of researches on the content of ions, biogenic and organic substances in the system «snow on ice – ice – under the ice water» in two lakes – Munozero and Urozero (Russia, Republic of Karelia), conducted in February 2019. Since the beginning of the 1990s, the southern and south-western parts of the catchment and the water area of Lake Munozero have been undergone the anthropogenic impact by discharges of domestic waste waters and feed from the trout farm. Influence of human activities upon the Lake Urozero is negligible. Composition of its under-ice water is bicarbonate-calcium. Among the inorganic forms of nitrogen-containing compounds in snow, ice and the under-ice water, the nitrate ion prevails (85%). High concentrations of total phosphorus (up to 10 μg/l) and organic nitrogen (up to 0.19 mg/l) in the lower layers of ice in the system “ice-water” for the Lake Munozero are comparable with the content of them in the under-ice water. The ice cover of both lakes Munozero and Urozero is characterized by a low content of organic carbon (on average, 1.0 and 0.8 mg/l), while in the under-ice water its concentration is 4 and 2 times higher, respectively. To determine the intensity of the involvement of dissolved substances into the ice in combination with ice-forming water, the coefficient of involvement Kv was used. Studies have shown that among the cations in the ice of both lakes, potassium is more involved, while among the anions this is the sulfate ion. In Lake Munozero, undergone the anthropogenic effects, the concentration of chlorine ions in the ice changes from 0.2 to 0.5 mg/l (17 and 36%‑eq). |
format |
Article in Journal/Newspaper |
author |
A. V. Sabylina T. A. Efremova O. I. Ikko |
author_facet |
A. V. Sabylina T. A. Efremova O. I. Ikko |
author_sort |
A. V. Sabylina |
title |
Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia) |
title_short |
Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia) |
title_full |
Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia) |
title_fullStr |
Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia) |
title_full_unstemmed |
Chemical composition of the hydro-cryogenic system of lakes Munozero and Urozero (Republic of Karelia, Russia) |
title_sort |
chemical composition of the hydro-cryogenic system of lakes munozero and urozero (republic of karelia, russia) |
publisher |
Nauka |
publishDate |
2020 |
url |
https://doi.org/10.31857/S2076673420040063 https://doaj.org/article/c5e6bd9d9e9447979fbfbb67b8135b40 |
long_lat |
ENVELOPE(34.672,34.672,67.070,67.070) |
geographic |
Munozero |
geographic_facet |
Munozero |
genre |
karelia* Republic of Karelia |
genre_facet |
karelia* Republic of Karelia |
op_source |
Лëд и снег, Vol 60, Iss 4, Pp 592-600 (2020) |
op_relation |
https://ice-snow.igras.ru/jour/article/view/844 https://doaj.org/toc/2076-6734 https://doaj.org/toc/2412-3765 2076-6734 2412-3765 doi:10.31857/S2076673420040063 https://doaj.org/article/c5e6bd9d9e9447979fbfbb67b8135b40 |
op_doi |
https://doi.org/10.31857/S2076673420040063 |
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