Modelling past, present and future peatland carbon accumulation across the pan-Arctic

Most northern peatlands developed during the Holocene, sequestering large amounts of carbon in terrestrial ecosystems. However, recent syntheses have highlighted the gaps in our understanding of peatland carbon accumulation. Assessments of the long-term carbon accumulation rate and possible warming...

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Main Authors: Chaudhary, Nitin, Miller, Paul A, Smith, Benjamin
Format: Dataset
Language:English
Published: PANGAEA 2017
Subjects:
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.880524
https://doi.org/10.1594/PANGAEA.880524
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spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.880524 2023-05-15T14:24:54+02:00 Modelling past, present and future peatland carbon accumulation across the pan-Arctic Chaudhary, Nitin Miller, Paul A Smith, Benjamin 2017-09-11 text/tab-separated-values, 20 data points https://doi.pangaea.de/10.1594/PANGAEA.880524 https://doi.org/10.1594/PANGAEA.880524 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.880524 https://doi.org/10.1594/PANGAEA.880524 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Chaudhary, Nitin; Miller, Paul A; Smith, Benjamin (2017): Modelling past, present and future peatland carbon accumulation across the pan-Arctic. Biogeosciences Discussions, 1-45, https://doi.org/10.5194/bg-2017-34 File content File format File name File size Uniform resource locator/link to file Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.880524 https://doi.org/10.5194/bg-2017-34 2023-01-20T09:09:33Z Most northern peatlands developed during the Holocene, sequestering large amounts of carbon in terrestrial ecosystems. However, recent syntheses have highlighted the gaps in our understanding of peatland carbon accumulation. Assessments of the long-term carbon accumulation rate and possible warming driven changes in these accumulation rates can therefore benefit from process-based modelling studies. We employed an individual- and patch-based dynamic global ecosystem model with dynamic peatland and permafrost functionality and vegetation dynamics to quantify long-term carbon accumulation rates and to assess the effects of historical and projected climate change on peatland carbon balances across the pan-Arctic. Our results are broadly consistent with published regional and global carbon accumulation estimates. A majority of modelled peatland sites in Scandinavia, Europe, Russia and Central and eastern Canada change from carbon sinks through the Holocene to potential carbon sources in the coming century. In contrast, the carbon sink capacity of modelled sites in Siberia, Far East Russia, Alaska and western and northern Canada was predicted to increase in the coming century. The greatest changes were evident in eastern Siberia, northwest Canada and in Alaska, where peat production, from being hampered by permafrost and low productivity due the cold climate in these regions in the past, was simulated to increase greatly due to warming, wetter climate and greater CO2 levels by the year 2100. In contrast, our model predicts that sites that are expected to experience reduced precipitation rates and are currently permafrost free will lose more carbon in the future. Dataset Arctic Arctic Climate change permafrost Alaska Siberia PANGAEA - Data Publisher for Earth & Environmental Science Arctic Canada
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
topic File content
File format
File name
File size
Uniform resource locator/link to file
spellingShingle File content
File format
File name
File size
Uniform resource locator/link to file
Chaudhary, Nitin
Miller, Paul A
Smith, Benjamin
Modelling past, present and future peatland carbon accumulation across the pan-Arctic
topic_facet File content
File format
File name
File size
Uniform resource locator/link to file
description Most northern peatlands developed during the Holocene, sequestering large amounts of carbon in terrestrial ecosystems. However, recent syntheses have highlighted the gaps in our understanding of peatland carbon accumulation. Assessments of the long-term carbon accumulation rate and possible warming driven changes in these accumulation rates can therefore benefit from process-based modelling studies. We employed an individual- and patch-based dynamic global ecosystem model with dynamic peatland and permafrost functionality and vegetation dynamics to quantify long-term carbon accumulation rates and to assess the effects of historical and projected climate change on peatland carbon balances across the pan-Arctic. Our results are broadly consistent with published regional and global carbon accumulation estimates. A majority of modelled peatland sites in Scandinavia, Europe, Russia and Central and eastern Canada change from carbon sinks through the Holocene to potential carbon sources in the coming century. In contrast, the carbon sink capacity of modelled sites in Siberia, Far East Russia, Alaska and western and northern Canada was predicted to increase in the coming century. The greatest changes were evident in eastern Siberia, northwest Canada and in Alaska, where peat production, from being hampered by permafrost and low productivity due the cold climate in these regions in the past, was simulated to increase greatly due to warming, wetter climate and greater CO2 levels by the year 2100. In contrast, our model predicts that sites that are expected to experience reduced precipitation rates and are currently permafrost free will lose more carbon in the future.
format Dataset
author Chaudhary, Nitin
Miller, Paul A
Smith, Benjamin
author_facet Chaudhary, Nitin
Miller, Paul A
Smith, Benjamin
author_sort Chaudhary, Nitin
title Modelling past, present and future peatland carbon accumulation across the pan-Arctic
title_short Modelling past, present and future peatland carbon accumulation across the pan-Arctic
title_full Modelling past, present and future peatland carbon accumulation across the pan-Arctic
title_fullStr Modelling past, present and future peatland carbon accumulation across the pan-Arctic
title_full_unstemmed Modelling past, present and future peatland carbon accumulation across the pan-Arctic
title_sort modelling past, present and future peatland carbon accumulation across the pan-arctic
publisher PANGAEA
publishDate 2017
url https://doi.pangaea.de/10.1594/PANGAEA.880524
https://doi.org/10.1594/PANGAEA.880524
geographic Arctic
Canada
geographic_facet Arctic
Canada
genre Arctic
Arctic
Climate change
permafrost
Alaska
Siberia
genre_facet Arctic
Arctic
Climate change
permafrost
Alaska
Siberia
op_source Supplement to: Chaudhary, Nitin; Miller, Paul A; Smith, Benjamin (2017): Modelling past, present and future peatland carbon accumulation across the pan-Arctic. Biogeosciences Discussions, 1-45, https://doi.org/10.5194/bg-2017-34
op_relation https://doi.pangaea.de/10.1594/PANGAEA.880524
https://doi.org/10.1594/PANGAEA.880524
op_rights CC-BY-3.0: Creative Commons Attribution 3.0 Unported
Access constraints: unrestricted
info:eu-repo/semantics/openAccess
op_rightsnorm CC-BY
op_doi https://doi.org/10.1594/PANGAEA.880524
https://doi.org/10.5194/bg-2017-34
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