Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia
The assessment of riverine fluxes of carbon, nutrients, and metals in surface waters of permafrost-affected regions is crucially important for constraining adequate models of ecosystem functioning under various climate change scenarios. In this regard, the largest permafrost peatland territory on th...
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MDPI AG
2020
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Online Access: | https://doi.org/10.3390/w12061817 https://doaj.org/article/0cc2ef394d364e18a00024127a365735 |
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ftdoajarticles:oai:doaj.org/article:0cc2ef394d364e18a00024127a365735 2023-05-15T15:03:50+02:00 Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia Oleg S. Pokrovsky Rinat M. Manasypov Sergey G. Kopysov Ivan V. Krickov Liudmila S. Shirokova Sergey V. Loiko Artem G. Lim Larisa G. Kolesnichenko Sergey N. Vorobyev Sergey N. Kirpotin 2020-06-01T00:00:00Z https://doi.org/10.3390/w12061817 https://doaj.org/article/0cc2ef394d364e18a00024127a365735 EN eng MDPI AG https://www.mdpi.com/2073-4441/12/6/1817 https://doaj.org/toc/2073-4441 doi:10.3390/w12061817 2073-4441 https://doaj.org/article/0cc2ef394d364e18a00024127a365735 Water, Vol 12, Iss 1817, p 1817 (2020) river flux weathering organic matter permafrost trace element river Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 article 2020 ftdoajarticles https://doi.org/10.3390/w12061817 2022-12-31T01:27:29Z The assessment of riverine fluxes of carbon, nutrients, and metals in surface waters of permafrost-affected regions is crucially important for constraining adequate models of ecosystem functioning under various climate change scenarios. In this regard, the largest permafrost peatland territory on the Earth, the Western Siberian Lowland (WSL) presents a unique opportunity of studying possible future changes in biogeochemical cycles because it lies within a south–north gradient of climate, vegetation, and permafrost that ranges from the permafrost-free boreal to the Arctic tundra with continuous permafrost at otherwise similar relief and bedrocks. By applying a “substituting space for time” scenario, the WSL south-north gradient may serve as a model for future changes due to permafrost boundary shift and climate warming. Here we measured export fluxes (yields) of dissolved organic carbon (DOC), major cations, macro- and micro- nutrients, and trace elements in 32 rivers, draining the WSL across a latitudinal transect from the permafrost-free to the continuous permafrost zone. We aimed at quantifying the impact of climate warming (water temperature rise and permafrost boundary shift) on DOC, nutrient and metal in rivers using a “substituting space for time” approach. We demonstrate that, contrary to common expectations, the climate warming and permafrost thaw in the WSL will likely decrease the riverine export of organic C and many elements. Based on the latitudinal pattern of riverine export, in the case of a northward shift in the permafrost zones, the DOC, P, N, Si, Fe, divalent heavy metals, trivalent and tetravalent hydrolysates are likely to decrease the yields by a factor of 2–5. The DIC, Ca, SO 4 , Sr, Ba, Mo, and U are likely to increase their yields by a factor of 2–3. Moreover, B, Li, K, Rb, Cs, N-NO 3 , Mg, Zn, As, Sb, Rb, and Cs may be weakly affected by the permafrost boundary migration (change of yield by a factor of 1.5 to 2.0). We conclude that modeling of C and element cycle in the Arctic and ... Article in Journal/Newspaper Arctic Climate change permafrost Tundra Siberia Directory of Open Access Journals: DOAJ Articles Arctic Water 12 6 1817 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
river flux weathering organic matter permafrost trace element river Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
spellingShingle |
river flux weathering organic matter permafrost trace element river Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Oleg S. Pokrovsky Rinat M. Manasypov Sergey G. Kopysov Ivan V. Krickov Liudmila S. Shirokova Sergey V. Loiko Artem G. Lim Larisa G. Kolesnichenko Sergey N. Vorobyev Sergey N. Kirpotin Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia |
topic_facet |
river flux weathering organic matter permafrost trace element river Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
description |
The assessment of riverine fluxes of carbon, nutrients, and metals in surface waters of permafrost-affected regions is crucially important for constraining adequate models of ecosystem functioning under various climate change scenarios. In this regard, the largest permafrost peatland territory on the Earth, the Western Siberian Lowland (WSL) presents a unique opportunity of studying possible future changes in biogeochemical cycles because it lies within a south–north gradient of climate, vegetation, and permafrost that ranges from the permafrost-free boreal to the Arctic tundra with continuous permafrost at otherwise similar relief and bedrocks. By applying a “substituting space for time” scenario, the WSL south-north gradient may serve as a model for future changes due to permafrost boundary shift and climate warming. Here we measured export fluxes (yields) of dissolved organic carbon (DOC), major cations, macro- and micro- nutrients, and trace elements in 32 rivers, draining the WSL across a latitudinal transect from the permafrost-free to the continuous permafrost zone. We aimed at quantifying the impact of climate warming (water temperature rise and permafrost boundary shift) on DOC, nutrient and metal in rivers using a “substituting space for time” approach. We demonstrate that, contrary to common expectations, the climate warming and permafrost thaw in the WSL will likely decrease the riverine export of organic C and many elements. Based on the latitudinal pattern of riverine export, in the case of a northward shift in the permafrost zones, the DOC, P, N, Si, Fe, divalent heavy metals, trivalent and tetravalent hydrolysates are likely to decrease the yields by a factor of 2–5. The DIC, Ca, SO 4 , Sr, Ba, Mo, and U are likely to increase their yields by a factor of 2–3. Moreover, B, Li, K, Rb, Cs, N-NO 3 , Mg, Zn, As, Sb, Rb, and Cs may be weakly affected by the permafrost boundary migration (change of yield by a factor of 1.5 to 2.0). We conclude that modeling of C and element cycle in the Arctic and ... |
format |
Article in Journal/Newspaper |
author |
Oleg S. Pokrovsky Rinat M. Manasypov Sergey G. Kopysov Ivan V. Krickov Liudmila S. Shirokova Sergey V. Loiko Artem G. Lim Larisa G. Kolesnichenko Sergey N. Vorobyev Sergey N. Kirpotin |
author_facet |
Oleg S. Pokrovsky Rinat M. Manasypov Sergey G. Kopysov Ivan V. Krickov Liudmila S. Shirokova Sergey V. Loiko Artem G. Lim Larisa G. Kolesnichenko Sergey N. Vorobyev Sergey N. Kirpotin |
author_sort |
Oleg S. Pokrovsky |
title |
Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia |
title_short |
Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia |
title_full |
Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia |
title_fullStr |
Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia |
title_full_unstemmed |
Impact of Permafrost Thaw and Climate Warming on Riverine Export Fluxes of Carbon, Nutrients and Metals in Western Siberia |
title_sort |
impact of permafrost thaw and climate warming on riverine export fluxes of carbon, nutrients and metals in western siberia |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/w12061817 https://doaj.org/article/0cc2ef394d364e18a00024127a365735 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change permafrost Tundra Siberia |
genre_facet |
Arctic Climate change permafrost Tundra Siberia |
op_source |
Water, Vol 12, Iss 1817, p 1817 (2020) |
op_relation |
https://www.mdpi.com/2073-4441/12/6/1817 https://doaj.org/toc/2073-4441 doi:10.3390/w12061817 2073-4441 https://doaj.org/article/0cc2ef394d364e18a00024127a365735 |
op_doi |
https://doi.org/10.3390/w12061817 |
container_title |
Water |
container_volume |
12 |
container_issue |
6 |
container_start_page |
1817 |
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1766335674434191360 |