Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure
Thermokarst lakes in the Western Siberian Lowland (WSL) are major environmental factors controlling organic carbon and trace metal storage in inland waters and greenhouse gas emissions to the atmosphere. In contrast to previously published research devoted to lake hydrochemistry, hydrobiology, sedim...
Published in: | Water |
---|---|
Main Authors: | , , , , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2023
|
Subjects: | |
Online Access: | https://doi.org/10.3390/w15091783 |
id |
ftmdpi:oai:mdpi.com:/2073-4441/15/9/1783/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2073-4441/15/9/1783/ 2023-08-20T04:07:07+02:00 Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure Rinat M. Manasypov Artem G. Lim Ivan V. Kriсkov Tatiana V. Raudina Danil G. Kurashev Liudmila S. Shirokova Oleg S. Pokrovsky agris 2023-05-06 application/pdf https://doi.org/10.3390/w15091783 EN eng Multidisciplinary Digital Publishing Institute Water and Climate Change https://dx.doi.org/10.3390/w15091783 https://creativecommons.org/licenses/by/4.0/ Water; Volume 15; Issue 9; Pages: 1783 colloids thermokarst lake waters Western Siberia organic carbon trace element micronutrients speciation size fractionation bioavailability Text 2023 ftmdpi https://doi.org/10.3390/w15091783 2023-08-01T09:58:09Z Thermokarst lakes in the Western Siberian Lowland (WSL) are major environmental factors controlling organic carbon and trace metal storage in inland waters and greenhouse gas emissions to the atmosphere. In contrast to previously published research devoted to lake hydrochemistry, hydrobiology, sedimentary carbon, and processes controlling the lake total dissolved (<0.45 μm) solute composition, the colloidal forms of organic carbon (ОC), and related elements remain poorly known, especially across the permafrost gradient in this environmentally important region. Here we sampled 38 thermokarst lakes in the WSL, from the continuous to the permafrost-free zone, and we assessed both the total (<0.45 μm) and low-molecular-weight (<1 kDa) concentrations of 50 major and trace elements using conventional filtration and in situ dialysis. We aimed at quantifying the relationships between the colloidal content of an element and the lake surface area, permafrost coverage (absent, sporadic, isolated, discontinuous, and continuous), pH, and the concentrations of the main colloidal constituents, such as OC, Fe, and Al. There was a positive correlation between the lake area and the contents of the colloidal fractions of DOC, Ni, rare earth elements (REE), and Hf, which could be due to the enhanced mobilization of OC, trace metals, and lithogenic elements from silicate minerals in the soil porewater within the lake watershed and peat abrasion at the lake border. In all permafrost zones, the colloidal fractions of alkalis and alkaline-earth metals decreased with an increase in lake size, probably due to a decrease in the DOC concentration in large lakes. There was an increase in the colloidal fractions of DOC, Fe, Al, trivalent and tetravalent trace cations, Mn, Co, Ni, As, V, and U from the southern, permafrost-free zone to the northern, permafrost-bearing zones. This observation could be explained by an enhanced feeding of thermokarst lakes by suprapermafrost flow and the thawing of dispersed peat ice in the northern ... Text Ice permafrost Thermokarst Siberia MDPI Open Access Publishing Water 15 9 1783 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
colloids thermokarst lake waters Western Siberia organic carbon trace element micronutrients speciation size fractionation bioavailability |
spellingShingle |
colloids thermokarst lake waters Western Siberia organic carbon trace element micronutrients speciation size fractionation bioavailability Rinat M. Manasypov Artem G. Lim Ivan V. Kriсkov Tatiana V. Raudina Danil G. Kurashev Liudmila S. Shirokova Oleg S. Pokrovsky Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure |
topic_facet |
colloids thermokarst lake waters Western Siberia organic carbon trace element micronutrients speciation size fractionation bioavailability |
description |
Thermokarst lakes in the Western Siberian Lowland (WSL) are major environmental factors controlling organic carbon and trace metal storage in inland waters and greenhouse gas emissions to the atmosphere. In contrast to previously published research devoted to lake hydrochemistry, hydrobiology, sedimentary carbon, and processes controlling the lake total dissolved (<0.45 μm) solute composition, the colloidal forms of organic carbon (ОC), and related elements remain poorly known, especially across the permafrost gradient in this environmentally important region. Here we sampled 38 thermokarst lakes in the WSL, from the continuous to the permafrost-free zone, and we assessed both the total (<0.45 μm) and low-molecular-weight (<1 kDa) concentrations of 50 major and trace elements using conventional filtration and in situ dialysis. We aimed at quantifying the relationships between the colloidal content of an element and the lake surface area, permafrost coverage (absent, sporadic, isolated, discontinuous, and continuous), pH, and the concentrations of the main colloidal constituents, such as OC, Fe, and Al. There was a positive correlation between the lake area and the contents of the colloidal fractions of DOC, Ni, rare earth elements (REE), and Hf, which could be due to the enhanced mobilization of OC, trace metals, and lithogenic elements from silicate minerals in the soil porewater within the lake watershed and peat abrasion at the lake border. In all permafrost zones, the colloidal fractions of alkalis and alkaline-earth metals decreased with an increase in lake size, probably due to a decrease in the DOC concentration in large lakes. There was an increase in the colloidal fractions of DOC, Fe, Al, trivalent and tetravalent trace cations, Mn, Co, Ni, As, V, and U from the southern, permafrost-free zone to the northern, permafrost-bearing zones. This observation could be explained by an enhanced feeding of thermokarst lakes by suprapermafrost flow and the thawing of dispersed peat ice in the northern ... |
format |
Text |
author |
Rinat M. Manasypov Artem G. Lim Ivan V. Kriсkov Tatiana V. Raudina Danil G. Kurashev Liudmila S. Shirokova Oleg S. Pokrovsky |
author_facet |
Rinat M. Manasypov Artem G. Lim Ivan V. Kriсkov Tatiana V. Raudina Danil G. Kurashev Liudmila S. Shirokova Oleg S. Pokrovsky |
author_sort |
Rinat M. Manasypov |
title |
Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure |
title_short |
Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure |
title_full |
Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure |
title_fullStr |
Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure |
title_full_unstemmed |
Colloids in Thermokarst Lakes along a Permafrost and Climate Gradient of Permafrost Peatlands in Western Siberia Using In Situ Dialysis Procedure |
title_sort |
colloids in thermokarst lakes along a permafrost and climate gradient of permafrost peatlands in western siberia using in situ dialysis procedure |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/w15091783 |
op_coverage |
agris |
genre |
Ice permafrost Thermokarst Siberia |
genre_facet |
Ice permafrost Thermokarst Siberia |
op_source |
Water; Volume 15; Issue 9; Pages: 1783 |
op_relation |
Water and Climate Change https://dx.doi.org/10.3390/w15091783 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w15091783 |
container_title |
Water |
container_volume |
15 |
container_issue |
9 |
container_start_page |
1783 |
_version_ |
1774718573950795776 |