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Carbon storage and ...
Carbon storage and burial in thermokarst lakes of permafrost peatlands
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- Manasypov, R.M. (författare)
- BIO-GEO-CLIM Laboratory, Tomsk State University, 36, Lenina Av., Tomsk, Russian Federation
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- Lim, A.G. (författare)
- BIO-GEO-CLIM Laboratory, Tomsk State University, 36, Lenina Av., Tomsk, Russian Federation
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- Krickov, I.V. (författare)
- BIO-GEO-CLIM Laboratory, Tomsk State University, 36, Lenina Av., Tomsk, Russian Federation
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- Shirokova, L.S. (författare)
- GET UMR 5563 CNRS University of Toulouse, 14, Avenue Edouard Belin, Toulouse, France; Federal Center for Integrated Arctic Research, Institute of Ecological Problem of the North, 23, Nab. Severnoi Dviny, Arkhangel’sk, Russian Federation
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- Shevchenko, V.P. (författare)
- Shirshov Institute of Oceanology, Russian Academy of Sciences, 36, Nakhimovsky Prospect, Moscow, Russian Federation
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- Aliev, R.A. (författare)
- Chemistry Department, Lomonosov Moscow State University, 1, Leninskie Gory, Moscow, Russian Federation
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- Karlsson, Jan, 1974- (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Climate Impacts Research Centre (CIRC), Umeå University, Umeå, Sweden
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- Pokrovsky, O.S. (författare)
- BIO-GEO-CLIM Laboratory, Tomsk State University, 36, Lenina Av., Tomsk, Russian Federation; GET UMR 5563 CNRS University of Toulouse, 14, Avenue Edouard Belin, Toulouse, France; Federal Center for Integrated Arctic Research, Institute of Ecological Problem of the North, 23, Nab. Severnoi Dviny, Arkhangel’sk, Russian Federation
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BIO-GEO-CLIM Laboratory, Tomsk State University, 36, Lenina Av, Tomsk, Russian Federation GET UMR 5563 CNRS University of Toulouse, 14, Avenue Edouard Belin, Toulouse, France; Federal Center for Integrated Arctic Research, Institute of Ecological Problem of the North, 23, Nab. Severnoi Dviny, Arkhangel’sk, Russian Federation (creator_code:org_t)
- 2022-03-12
- 2022
- Engelska.
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Ingår i: Biogeochemistry. - : Springer Science+Business Media B.V.. - 0168-2563 .- 1573-515X. ; 159:1, s. 69-86
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Thermokarst (thaw) lakes of the Western Siberian Lowland (WSL), the World´s largest permafrost peatland, contain important but poorly constrained stocks of organic carbon (OC) and nitrogen. These lakes are highly vulnerable to climate warming and permafrost thaw. The present work aims to quantify the OC and total nitrogen (TN) stocks and accumulation rates in sediments of 11 thermokarst lakes in the WSL across a permafrost gradient, from isolated to discontinuous and continuous permafrost. We found an increase in OC and TN stocks in lake sediments (0–30 cm) from the northern taiga with sporadic permafrost (285 Tg C and 10.5 Tg N) to the tundra zone with continuous permafrost (628 Tg C and 26 Tg N). The upper 30 cm thermokarst lake sediments of the permafrost-affected WSL store 1250 ± 35 Tg C and 50 ± 1.4 Tg N). The OC accumulation rates in thermokarst lake sediments ranged from 36 to 250 g C m−2 year−1, which is 5 to 10 times higher than C accumulation rates in peatlands of western Siberia. The total OC accumulation in lakes of WSL is 7.8 ± 0.7 Tg C year−1. This is about 24–47% of the C emission from the WSL thermokarst lakes, implying that it represents an important factor in the C budget to consider in order to understand impacts of climate change and permafrost thaw on the C cycle.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Nyckelord
- Accumulation
- Organic carbon
- Sediments
- Storage
- Thermokarst lakes
- Western Siberia
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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