Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia
In order to foresee possible changes in the elementary composition of Arctic river waters, complex studies with extensive spatial coverage, including gradients in climate and landscape parameters, are needed. Here, we used the unique position of the Ob River, draining through the vast partially froz...
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ftmdpi:oai:mdpi.com:/2073-4441/13/22/3189/ 2023-08-20T04:05:01+02:00 Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia Iurii Kolesnichenko Larisa G. Kolesnichenko Sergey N. Vorobyev Liudmila S. Shirokova Igor P. Semiletov Oleg V. Dudarev Rostislav S. Vorobev Uliana Shavrina Sergey N. Kirpotin Oleg S. Pokrovsky agris 2021-11-11 application/pdf https://doi.org/10.3390/w13223189 EN eng Multidisciplinary Digital Publishing Institute Water Quality and Contamination https://dx.doi.org/10.3390/w13223189 https://creativecommons.org/licenses/by/4.0/ Water; Volume 13; Issue 22; Pages: 3189 river forest bog permafrost carbon major ions iron colloids trace element Text 2021 ftmdpi https://doi.org/10.3390/w13223189 2023-08-01T03:13:13Z In order to foresee possible changes in the elementary composition of Arctic river waters, complex studies with extensive spatial coverage, including gradients in climate and landscape parameters, are needed. Here, we used the unique position of the Ob River, draining through the vast partially frozen peatlands of the western Siberia Lowland and encompassing a sizable gradient of climate, permafrost, vegetation, soils and Quaternary deposits, to assess a snap-shot (8–23 July 2016) concentration of all major and trace elements in the main stem (~3000 km transect from the Tom River confluence in the south to Salekhard in the north) and its 11 tributaries. During the studied period, corresponding to the end of the spring flood-summer baseflow, there was a systematic decrease, from the south to the north, of Dissolved Inorganic Carbon (DIC), Specific Conductivity, Ca and some labile trace elements (Mo, W and U). In contrast, Dissolved Organic Carbon (DOC), Fe, P, divalent metals (Mn, Ni, Cu, Co and Pb) and low mobile trace elements (Y, Nb, REEs, Ti, Zr, Hf and Th) sizably increased their concentration northward. The observed latitudinal pattern in element concentrations can be explained by progressive disconnection of groundwaters from the main river and its tributaries due to a northward increase in the permafrost coverage. A northward increase in bog versus forest coverage and an increase in DOC and Fe export enhanced the mobilization of insoluble, low mobile elements which were present in organo-ferric colloids (1 kDa—0.45 µm), as confirmed by an in-situ dialysis size fractionation procedure. The chemical composition of the sampled mainstream and tributaries demonstrated significant (p < 0.01) control of latitude of the sampling point; permafrost coverage; proportion of bogs, lakes and floodplain coverage and lacustrine and fluvio-glacial Quaternary deposits of the watershed. This impact was mostly pronounced on DOC, Fe, P, divalent metals (Mn, Co, Ni, Cu and Pb), Rb and low mobile lithogenic trace elements ... Text Arctic ob river permafrost Siberia MDPI Open Access Publishing Arctic Salekhard ENVELOPE(66.602,66.602,66.530,66.530) Water 13 22 3189 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
river forest bog permafrost carbon major ions iron colloids trace element |
spellingShingle |
river forest bog permafrost carbon major ions iron colloids trace element Iurii Kolesnichenko Larisa G. Kolesnichenko Sergey N. Vorobyev Liudmila S. Shirokova Igor P. Semiletov Oleg V. Dudarev Rostislav S. Vorobev Uliana Shavrina Sergey N. Kirpotin Oleg S. Pokrovsky Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia |
topic_facet |
river forest bog permafrost carbon major ions iron colloids trace element |
description |
In order to foresee possible changes in the elementary composition of Arctic river waters, complex studies with extensive spatial coverage, including gradients in climate and landscape parameters, are needed. Here, we used the unique position of the Ob River, draining through the vast partially frozen peatlands of the western Siberia Lowland and encompassing a sizable gradient of climate, permafrost, vegetation, soils and Quaternary deposits, to assess a snap-shot (8–23 July 2016) concentration of all major and trace elements in the main stem (~3000 km transect from the Tom River confluence in the south to Salekhard in the north) and its 11 tributaries. During the studied period, corresponding to the end of the spring flood-summer baseflow, there was a systematic decrease, from the south to the north, of Dissolved Inorganic Carbon (DIC), Specific Conductivity, Ca and some labile trace elements (Mo, W and U). In contrast, Dissolved Organic Carbon (DOC), Fe, P, divalent metals (Mn, Ni, Cu, Co and Pb) and low mobile trace elements (Y, Nb, REEs, Ti, Zr, Hf and Th) sizably increased their concentration northward. The observed latitudinal pattern in element concentrations can be explained by progressive disconnection of groundwaters from the main river and its tributaries due to a northward increase in the permafrost coverage. A northward increase in bog versus forest coverage and an increase in DOC and Fe export enhanced the mobilization of insoluble, low mobile elements which were present in organo-ferric colloids (1 kDa—0.45 µm), as confirmed by an in-situ dialysis size fractionation procedure. The chemical composition of the sampled mainstream and tributaries demonstrated significant (p < 0.01) control of latitude of the sampling point; permafrost coverage; proportion of bogs, lakes and floodplain coverage and lacustrine and fluvio-glacial Quaternary deposits of the watershed. This impact was mostly pronounced on DOC, Fe, P, divalent metals (Mn, Co, Ni, Cu and Pb), Rb and low mobile lithogenic trace elements ... |
format |
Text |
author |
Iurii Kolesnichenko Larisa G. Kolesnichenko Sergey N. Vorobyev Liudmila S. Shirokova Igor P. Semiletov Oleg V. Dudarev Rostislav S. Vorobev Uliana Shavrina Sergey N. Kirpotin Oleg S. Pokrovsky |
author_facet |
Iurii Kolesnichenko Larisa G. Kolesnichenko Sergey N. Vorobyev Liudmila S. Shirokova Igor P. Semiletov Oleg V. Dudarev Rostislav S. Vorobev Uliana Shavrina Sergey N. Kirpotin Oleg S. Pokrovsky |
author_sort |
Iurii Kolesnichenko |
title |
Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia |
title_short |
Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia |
title_full |
Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia |
title_fullStr |
Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia |
title_full_unstemmed |
Landscape, Soil, Lithology, Climate and Permafrost Control on Dissolved Carbon, Major and Trace Elements in the Ob River, Western Siberia |
title_sort |
landscape, soil, lithology, climate and permafrost control on dissolved carbon, major and trace elements in the ob river, western siberia |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/w13223189 |
op_coverage |
agris |
long_lat |
ENVELOPE(66.602,66.602,66.530,66.530) |
geographic |
Arctic Salekhard |
geographic_facet |
Arctic Salekhard |
genre |
Arctic ob river permafrost Siberia |
genre_facet |
Arctic ob river permafrost Siberia |
op_source |
Water; Volume 13; Issue 22; Pages: 3189 |
op_relation |
Water Quality and Contamination https://dx.doi.org/10.3390/w13223189 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w13223189 |
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Water |
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13 |
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22 |
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3189 |
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