Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG
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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2022
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Online Access: | https://doi.org/10.3389/feart.2021.710257.s005 https://figshare.com/articles/figure/Image5_14_000-year_Carbon_Accumulation_Dynamics_in_a_Siberian_Lake_Reveal_Catchment_and_Lake_Productivity_Changes_PNG/20145017 |
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ftfrontimediafig:oai:figshare.com:article/20145017 2023-05-15T18:45:10+02:00 Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG Lara Hughes-Allen Frédéric Bouchard Christine Hatté Hanno Meyer Lyudmila A. Pestryakova Bernhard Diekmann Dmitry A. Subetto Boris K. Biskaborn 2022-06-24T13:14:02Z https://doi.org/10.3389/feart.2021.710257.s005 https://figshare.com/articles/figure/Image5_14_000-year_Carbon_Accumulation_Dynamics_in_a_Siberian_Lake_Reveal_Catchment_and_Lake_Productivity_Changes_PNG/20145017 unknown doi:10.3389/feart.2021.710257.s005 https://figshare.com/articles/figure/Image5_14_000-year_Carbon_Accumulation_Dynamics_in_a_Siberian_Lake_Reveal_Catchment_and_Lake_Productivity_Changes_PNG/20145017 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change paleolimnology lake sediment core late Pleistocene Holocene Eastern Siberia organic carbon accumulation stable carbon isotope (13C) Image Figure 2022 ftfrontimediafig https://doi.org/10.3389/feart.2021.710257.s005 2022-06-29T23:07:21Z 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 14 C 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/TN atomic ratios ∼20) to conditions dominated by aquatic primary productivity (TOC/TN atomic 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/TN atomic and ... Still Image Yakutia Siberia Frontiers: Figshare Chabyda ENVELOPE(127.867,127.867,62.400,62.400) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change paleolimnology lake sediment core late Pleistocene Holocene Eastern Siberia organic carbon accumulation stable carbon isotope (13C) |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change paleolimnology lake sediment core late Pleistocene Holocene Eastern Siberia organic carbon accumulation stable carbon isotope (13C) Lara Hughes-Allen Frédéric Bouchard Christine Hatté Hanno Meyer Lyudmila A. Pestryakova Bernhard Diekmann Dmitry A. Subetto Boris K. Biskaborn Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change paleolimnology lake sediment core late Pleistocene Holocene Eastern Siberia organic carbon accumulation stable carbon isotope (13C) |
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 14 C 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/TN atomic ratios ∼20) to conditions dominated by aquatic primary productivity (TOC/TN atomic 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/TN atomic and ... |
format |
Still Image |
author |
Lara Hughes-Allen Frédéric Bouchard Christine Hatté Hanno Meyer Lyudmila A. Pestryakova Bernhard Diekmann Dmitry A. Subetto Boris K. Biskaborn |
author_facet |
Lara Hughes-Allen Frédéric Bouchard Christine Hatté Hanno Meyer Lyudmila A. Pestryakova Bernhard Diekmann Dmitry A. Subetto Boris K. Biskaborn |
author_sort |
Lara Hughes-Allen |
title |
Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG |
title_short |
Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG |
title_full |
Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG |
title_fullStr |
Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG |
title_full_unstemmed |
Image5_14,000-year Carbon Accumulation Dynamics in a Siberian Lake Reveal Catchment and Lake Productivity Changes.PNG |
title_sort |
image5_14,000-year carbon accumulation dynamics in a siberian lake reveal catchment and lake productivity changes.png |
publishDate |
2022 |
url |
https://doi.org/10.3389/feart.2021.710257.s005 https://figshare.com/articles/figure/Image5_14_000-year_Carbon_Accumulation_Dynamics_in_a_Siberian_Lake_Reveal_Catchment_and_Lake_Productivity_Changes_PNG/20145017 |
long_lat |
ENVELOPE(127.867,127.867,62.400,62.400) |
geographic |
Chabyda |
geographic_facet |
Chabyda |
genre |
Yakutia Siberia |
genre_facet |
Yakutia Siberia |
op_relation |
doi:10.3389/feart.2021.710257.s005 https://figshare.com/articles/figure/Image5_14_000-year_Carbon_Accumulation_Dynamics_in_a_Siberian_Lake_Reveal_Catchment_and_Lake_Productivity_Changes_PNG/20145017 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2021.710257.s005 |
_version_ |
1766236159394971648 |