Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers
Identifying the landscape and climate factors that control nutrient export by rivers in high latitude regions is one of the main challenges for understanding the Arctic Ocean response to ongoing climate change. This is especially true for Western Siberian rivers, which are responsible for a signific...
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ftdoajarticles:oai:doaj.org/article:a542340444c145448a2f1663fb2a1959 2023-05-15T14:58:10+02:00 Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers Sergey N. Vorobyev Oleg S. Pokrovsky Svetlana Serikova Rinat M. Manasypov Ivan V. Krickov Liudmila S. Shirokova Artem Lim Larisa G. Kolesnichenko Sergey N. Kirpotin Jan Karlsson 2017-12-01T00:00:00Z https://doi.org/10.3390/w9120985 https://doaj.org/article/a542340444c145448a2f1663fb2a1959 EN eng MDPI AG https://www.mdpi.com/2073-4441/9/12/985 https://doaj.org/toc/2073-4441 2073-4441 doi:10.3390/w9120985 https://doaj.org/article/a542340444c145448a2f1663fb2a1959 Water, Vol 9, Iss 12, p 985 (2017) nitrate ammonium phosphorus phosphate river permafrost Siberia Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 article 2017 ftdoajarticles https://doi.org/10.3390/w9120985 2022-12-31T12:20:26Z Identifying the landscape and climate factors that control nutrient export by rivers in high latitude regions is one of the main challenges for understanding the Arctic Ocean response to ongoing climate change. This is especially true for Western Siberian rivers, which are responsible for a significant part of freshwater and solutes delivery to the Arctic Ocean and are draining vast permafrost-affected areas most vulnerable to thaw. Forty-nine small- and medium-sized rivers (10–100,000 km2) were sampled along a 1700 km long N–S transect including both permafrost-affected and permafrost-free zones of the Western Siberian Lowland (WSL) in June and August 2015. The N, P, dissolved organic and inorganic carbon (DOC and DIC, respectively), particular organic carbon (POC), Si, Ca, K, Fe, and Mn were analyzed to assess the role of environmental parameters, such as temperature, runoff, latitude, permafrost, bogs, lake, and forest coverage on nutrient concentration. The size of the watershed had no influence on nutrient concentrations in the rivers. Bogs and lakes retained nutrients whereas forests supplied P, Si, K, Ca, DIC, and Mn to rivers. The river water temperature was negatively correlated with Si and positively correlated with Fe in permafrost-free rivers. In permafrost-bearing rivers, the decrease in T northward was coupled with significant increases in PO4, Ptot, NH4, pH, DIC, Si, Ca, and Mn. North of the permafrost boundary (61° N), there was no difference in nutrient concentrations among permafrost zones (isolated, sporadic, discontinuous, and continuous). The climate warming in Western Siberia may lead to a permafrost boundary shift northward. Using a substituting space for time scenario, this may decrease or maintain the current levels of N, P, Si, K, Ca, DIC, and DOC concentrations in rivers of continuous permafrost zones compared to the present state. As a result, the export flux of nutrients by the small- and medium-sized rivers of the Western Siberian subarctic to the Arctic Ocean coastal zone may ... Article in Journal/Newspaper Arctic Arctic Ocean Climate change permafrost Subarctic Siberia Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Water 9 12 985 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
nitrate ammonium phosphorus phosphate river permafrost Siberia Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
spellingShingle |
nitrate ammonium phosphorus phosphate river permafrost Siberia Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Sergey N. Vorobyev Oleg S. Pokrovsky Svetlana Serikova Rinat M. Manasypov Ivan V. Krickov Liudmila S. Shirokova Artem Lim Larisa G. Kolesnichenko Sergey N. Kirpotin Jan Karlsson Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers |
topic_facet |
nitrate ammonium phosphorus phosphate river permafrost Siberia Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
description |
Identifying the landscape and climate factors that control nutrient export by rivers in high latitude regions is one of the main challenges for understanding the Arctic Ocean response to ongoing climate change. This is especially true for Western Siberian rivers, which are responsible for a significant part of freshwater and solutes delivery to the Arctic Ocean and are draining vast permafrost-affected areas most vulnerable to thaw. Forty-nine small- and medium-sized rivers (10–100,000 km2) were sampled along a 1700 km long N–S transect including both permafrost-affected and permafrost-free zones of the Western Siberian Lowland (WSL) in June and August 2015. The N, P, dissolved organic and inorganic carbon (DOC and DIC, respectively), particular organic carbon (POC), Si, Ca, K, Fe, and Mn were analyzed to assess the role of environmental parameters, such as temperature, runoff, latitude, permafrost, bogs, lake, and forest coverage on nutrient concentration. The size of the watershed had no influence on nutrient concentrations in the rivers. Bogs and lakes retained nutrients whereas forests supplied P, Si, K, Ca, DIC, and Mn to rivers. The river water temperature was negatively correlated with Si and positively correlated with Fe in permafrost-free rivers. In permafrost-bearing rivers, the decrease in T northward was coupled with significant increases in PO4, Ptot, NH4, pH, DIC, Si, Ca, and Mn. North of the permafrost boundary (61° N), there was no difference in nutrient concentrations among permafrost zones (isolated, sporadic, discontinuous, and continuous). The climate warming in Western Siberia may lead to a permafrost boundary shift northward. Using a substituting space for time scenario, this may decrease or maintain the current levels of N, P, Si, K, Ca, DIC, and DOC concentrations in rivers of continuous permafrost zones compared to the present state. As a result, the export flux of nutrients by the small- and medium-sized rivers of the Western Siberian subarctic to the Arctic Ocean coastal zone may ... |
format |
Article in Journal/Newspaper |
author |
Sergey N. Vorobyev Oleg S. Pokrovsky Svetlana Serikova Rinat M. Manasypov Ivan V. Krickov Liudmila S. Shirokova Artem Lim Larisa G. Kolesnichenko Sergey N. Kirpotin Jan Karlsson |
author_facet |
Sergey N. Vorobyev Oleg S. Pokrovsky Svetlana Serikova Rinat M. Manasypov Ivan V. Krickov Liudmila S. Shirokova Artem Lim Larisa G. Kolesnichenko Sergey N. Kirpotin Jan Karlsson |
author_sort |
Sergey N. Vorobyev |
title |
Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers |
title_short |
Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers |
title_full |
Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers |
title_fullStr |
Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers |
title_full_unstemmed |
Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers |
title_sort |
permafrost boundary shift in western siberia may not modify dissolved nutrient concentrations in rivers |
publisher |
MDPI AG |
publishDate |
2017 |
url |
https://doi.org/10.3390/w9120985 https://doaj.org/article/a542340444c145448a2f1663fb2a1959 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change permafrost Subarctic Siberia |
genre_facet |
Arctic Arctic Ocean Climate change permafrost Subarctic Siberia |
op_source |
Water, Vol 9, Iss 12, p 985 (2017) |
op_relation |
https://www.mdpi.com/2073-4441/9/12/985 https://doaj.org/toc/2073-4441 2073-4441 doi:10.3390/w9120985 https://doaj.org/article/a542340444c145448a2f1663fb2a1959 |
op_doi |
https://doi.org/10.3390/w9120985 |
container_title |
Water |
container_volume |
9 |
container_issue |
12 |
container_start_page |
985 |
_version_ |
1766330254972944384 |