14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes
A multi-proxy paleolimnological analysis of a sediment core sequence from Lake Malaya Chabyda in Central Yakutia (Eastern Siberia, Russia) was conducted to investigate changes in lake processes, including lake development, sediment and organic carbon accumulation, and changes in primary productivity...
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Online Access: | https://epic.awi.de/id/eprint/58483/ https://epic.awi.de/id/eprint/58483/1/149_Hugues-Allen%202021_FEART.pdf https://doi.org/10.3389/feart.2021.710257 https://hdl.handle.net/10013/epic.40ffcdd6-a284-4513-8fd6-de23bdeed4ca |
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ftawi:oai:epic.awi.de:58483 2024-04-21T08:13:04+00:00 14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes Hughes-Allen, Lara Bouchard, Frédéric Hatté, Christine Meyer, Hanno Pestryakova, Lyudmila A Diekmann, Bernhard Subetto, Dmitry A Biskaborn, Boris K 2021-11-25 application/pdf https://epic.awi.de/id/eprint/58483/ https://epic.awi.de/id/eprint/58483/1/149_Hugues-Allen%202021_FEART.pdf https://doi.org/10.3389/feart.2021.710257 https://hdl.handle.net/10013/epic.40ffcdd6-a284-4513-8fd6-de23bdeed4ca unknown Frontiers https://epic.awi.de/id/eprint/58483/1/149_Hugues-Allen%202021_FEART.pdf Hughes-Allen, L. , Bouchard, F. , Hatté, C. , Meyer, H. orcid:0000-0003-4129-4706 , Pestryakova, L. A. , Diekmann, B. , Subetto, D. A. and Biskaborn, B. K. orcid:0000-0003-2378-0348 (2021) 14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes , Frontiers in Earth Science, 9 , p. 710257 . doi:10.3389/feart.2021.710257 <https://doi.org/10.3389/feart.2021.710257> , hdl:10013/epic.40ffcdd6-a284-4513-8fd6-de23bdeed4ca EPIC3Frontiers in Earth Science, Frontiers, 9, pp. 710257-710257, ISSN: 2296-6463 Article isiRev 2021 ftawi https://doi.org/10.3389/feart.2021.710257 2024-03-27T15:17:23Z A multi-proxy paleolimnological analysis of a sediment core sequence from Lake Malaya Chabyda in Central Yakutia (Eastern Siberia, Russia) was conducted to investigate changes in lake processes, including lake development, sediment and organic carbon accumulation, and changes in primary productivity, within the context of Late Pleistocene and Holocene climate change. Age-depth modeling with 14C indicates that the maximum age of the sediment core is ∼14 cal kBP. Three distinct sedimentary units were identified within the sediment core. Sedimentological and biogeochemical properties in the deepest section of the core (663–584 cm; 14.1–12.3 cal kBP) suggests a lake environment mostly influenced by terrestrial vegetation, where organic carbon accumulation might have been relatively low (average ∼100 g OC m−2 a−1), although much higher than the global modern average. The middle section of the core (584–376 cm; 12.3–9.0 cal kBP) is characterized by higher primary productivity in the lake, much higher sedimentation, and a remarkable increase in OC delivery (average ∼300 g OC m−2 a−1). Conditions in the upper section of the core (<376 cm; < 9.0 cal kBP) suggest high primary productivity in the lake and high OC accumulation rates (average ∼200 g OC m−2 a−1), with stable environmental conditions. The transition from organic-poor and mostly terrestrial vegetation inputs (TOC/TNatomic ratios ∼20) to conditions dominated by aquatic primary productivity (TOC/TNatomic ratios <15) occurs at around 12.3 cal kBP. This resulted in an increase in the sedimentation rate of OC within the lake, illustrated by higher sedimentation rates and very high total OC concentrations (>30%) measured in the upper section of the core. Compact lake morphology and high sedimentation rates likely resulted in this lake acting as a significant OC sink since the Pleistocene-Holocene transition. Sediment accumulation rates declined after ∼8 cal k BP, however total OC concentrations were still notably high. TOC/TNatomic and isotopic data ... Article in Journal/Newspaper Yakutia Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Frontiers in Earth Science 9 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
A multi-proxy paleolimnological analysis of a sediment core sequence from Lake Malaya Chabyda in Central Yakutia (Eastern Siberia, Russia) was conducted to investigate changes in lake processes, including lake development, sediment and organic carbon accumulation, and changes in primary productivity, within the context of Late Pleistocene and Holocene climate change. Age-depth modeling with 14C indicates that the maximum age of the sediment core is ∼14 cal kBP. Three distinct sedimentary units were identified within the sediment core. Sedimentological and biogeochemical properties in the deepest section of the core (663–584 cm; 14.1–12.3 cal kBP) suggests a lake environment mostly influenced by terrestrial vegetation, where organic carbon accumulation might have been relatively low (average ∼100 g OC m−2 a−1), although much higher than the global modern average. The middle section of the core (584–376 cm; 12.3–9.0 cal kBP) is characterized by higher primary productivity in the lake, much higher sedimentation, and a remarkable increase in OC delivery (average ∼300 g OC m−2 a−1). Conditions in the upper section of the core (<376 cm; < 9.0 cal kBP) suggest high primary productivity in the lake and high OC accumulation rates (average ∼200 g OC m−2 a−1), with stable environmental conditions. The transition from organic-poor and mostly terrestrial vegetation inputs (TOC/TNatomic ratios ∼20) to conditions dominated by aquatic primary productivity (TOC/TNatomic ratios <15) occurs at around 12.3 cal kBP. This resulted in an increase in the sedimentation rate of OC within the lake, illustrated by higher sedimentation rates and very high total OC concentrations (>30%) measured in the upper section of the core. Compact lake morphology and high sedimentation rates likely resulted in this lake acting as a significant OC sink since the Pleistocene-Holocene transition. Sediment accumulation rates declined after ∼8 cal k BP, however total OC concentrations were still notably high. TOC/TNatomic and isotopic data ... |
format |
Article in Journal/Newspaper |
author |
Hughes-Allen, Lara Bouchard, Frédéric Hatté, Christine Meyer, Hanno Pestryakova, Lyudmila A Diekmann, Bernhard Subetto, Dmitry A Biskaborn, Boris K |
spellingShingle |
Hughes-Allen, Lara Bouchard, Frédéric Hatté, Christine Meyer, Hanno Pestryakova, Lyudmila A Diekmann, Bernhard Subetto, Dmitry A Biskaborn, Boris K 14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes |
author_facet |
Hughes-Allen, Lara Bouchard, Frédéric Hatté, Christine Meyer, Hanno Pestryakova, Lyudmila A Diekmann, Bernhard Subetto, Dmitry A Biskaborn, Boris K |
author_sort |
Hughes-Allen, Lara |
title |
14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes |
title_short |
14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes |
title_full |
14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes |
title_fullStr |
14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes |
title_full_unstemmed |
14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes |
title_sort |
14,000-year carbon accumulation dynamics in a siberian lake reveal catchment and lake productivity changes |
publisher |
Frontiers |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/58483/ https://epic.awi.de/id/eprint/58483/1/149_Hugues-Allen%202021_FEART.pdf https://doi.org/10.3389/feart.2021.710257 https://hdl.handle.net/10013/epic.40ffcdd6-a284-4513-8fd6-de23bdeed4ca |
genre |
Yakutia Siberia |
genre_facet |
Yakutia Siberia |
op_source |
EPIC3Frontiers in Earth Science, Frontiers, 9, pp. 710257-710257, ISSN: 2296-6463 |
op_relation |
https://epic.awi.de/id/eprint/58483/1/149_Hugues-Allen%202021_FEART.pdf Hughes-Allen, L. , Bouchard, F. , Hatté, C. , Meyer, H. orcid:0000-0003-4129-4706 , Pestryakova, L. A. , Diekmann, B. , Subetto, D. A. and Biskaborn, B. K. orcid:0000-0003-2378-0348 (2021) 14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes , Frontiers in Earth Science, 9 , p. 710257 . doi:10.3389/feart.2021.710257 <https://doi.org/10.3389/feart.2021.710257> , hdl:10013/epic.40ffcdd6-a284-4513-8fd6-de23bdeed4ca |
op_doi |
https://doi.org/10.3389/feart.2021.710257 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
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