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Organic carbon stocks of Great British saltmarshes

Craig Smeaton, Cai Ladd Orcid Logo, Lucy C. Miller, Lucy McMahon, Ed Garrett, Natasha L. M. Barlow, W. Roland Gehrels, Martin W. Skov, William E. N. Austin

Frontiers in Marine Science, Volume: 10

Swansea University Author: Cai Ladd Orcid Logo

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DOI (Published version): 10.3389/fmars.2023.1229486

Abstract

Coastal wetlands, such as saltmarshes, are globally widespread and highly effective at capturing and storing 'blue carbon’ and have the potential to regulate climate over varying timescales. Yet only Australia and the United States of America have national inventories of organic carbon held wit...

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Published in: Frontiers in Marine Science
ISSN: 2296-7745
Published: Frontiers Media SA 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa65075
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Yet only Australia and the United States of America have national inventories of organic carbon held within saltmarsh habitats, hindering the development of policies and management strategies to protect and preserve these organic carbon stores. Here we couple a new observational dataset with 4,797 samples from 26 saltmarshes across Great Britain to spatially model organic carbon stored in the soil and the above and belowground biomass of Great British saltmarshes. Using average values derived from the 26 marshes, we deliver first-order estimates of organic carbon stocks across Great Britain’s 448 saltmarshes (451.66 km2). The saltmarshes of Great Britain contain 5.20 ± 0.65 Mt of organic carbon, 93% of which is in the soil. On average, the saltmarshes store 11.55 ± 1.56 kg C m-2 with values ranging between 2.24 kg C m-2 and 40.51 kg C m-2 depending on interlinked factors such as geomorphology, organic carbon source, sediment type (mud vs sand), sediment supply, and relative sea level history. 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The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling v2 65075 2023-11-22 Organic carbon stocks of Great British saltmarshes 134c870190db4c365e2ccc2d6c107462 0000-0001-5437-6474 Cai Ladd Cai Ladd true false 2023-11-22 SGE Coastal wetlands, such as saltmarshes, are globally widespread and highly effective at capturing and storing 'blue carbon’ and have the potential to regulate climate over varying timescales. Yet only Australia and the United States of America have national inventories of organic carbon held within saltmarsh habitats, hindering the development of policies and management strategies to protect and preserve these organic carbon stores. Here we couple a new observational dataset with 4,797 samples from 26 saltmarshes across Great Britain to spatially model organic carbon stored in the soil and the above and belowground biomass of Great British saltmarshes. Using average values derived from the 26 marshes, we deliver first-order estimates of organic carbon stocks across Great Britain’s 448 saltmarshes (451.66 km2). The saltmarshes of Great Britain contain 5.20 ± 0.65 Mt of organic carbon, 93% of which is in the soil. On average, the saltmarshes store 11.55 ± 1.56 kg C m-2 with values ranging between 2.24 kg C m-2 and 40.51 kg C m-2 depending on interlinked factors such as geomorphology, organic carbon source, sediment type (mud vs sand), sediment supply, and relative sea level history. These findings affirm that saltmarshes represent the largest intertidal blue carbon store in Great Britain, yet remain an unaccounted for component of the United Kingdom’s natural carbon stores. Journal Article Frontiers in Marine Science 10 Frontiers Media SA 2296-7745 Coastal; wetlands; soil; vegetation; belowground; storage; United Kingdom; blue carbon 4 12 2023 2023-12-04 10.3389/fmars.2023.1229486 http://dx.doi.org/10.3389/fmars.2023.1229486 COLLEGE NANME Geography COLLEGE CODE SGE Swansea University Another institution paid the OA fee This research was finically supported by the Natural Environment Research Council funded Carbon Storage in Intertidal Environments (C-SIDE) project (grant NE/R010846/1) with additional support from the Scottish Blue Forum. NE/R010846/1 2023-12-13T15:37:18.4890297 2023-11-22T16:29:42.0298901 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Craig Smeaton 1 Cai Ladd 0000-0001-5437-6474 2 Lucy C. Miller 3 Lucy McMahon 4 Ed Garrett 5 Natasha L. M. Barlow 6 W. Roland Gehrels 7 Martin W. Skov 8 William E. N. Austin 9 65075__29174__d600456375b04c928cba200c22867f60.pdf 65075.VOR.pdf 2023-12-04T11:06:29.3606830 Output 9001012 application/pdf Version of Record true Copyright © 2023 Smeaton, Ladd, Miller, McMahon, Garrett, Barlow, Gehrels, Skov and Austin. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. true eng http://creativecommons.org/licenses/by/4.0/
title Organic carbon stocks of Great British saltmarshes
spellingShingle Organic carbon stocks of Great British saltmarshes
Cai Ladd
title_short Organic carbon stocks of Great British saltmarshes
title_full Organic carbon stocks of Great British saltmarshes
title_fullStr Organic carbon stocks of Great British saltmarshes
title_full_unstemmed Organic carbon stocks of Great British saltmarshes
title_sort Organic carbon stocks of Great British saltmarshes
author_id_str_mv 134c870190db4c365e2ccc2d6c107462
author_id_fullname_str_mv 134c870190db4c365e2ccc2d6c107462_***_Cai Ladd
author Cai Ladd
author2 Craig Smeaton
Cai Ladd
Lucy C. Miller
Lucy McMahon
Ed Garrett
Natasha L. M. Barlow
W. Roland Gehrels
Martin W. Skov
William E. N. Austin
format Journal article
container_title Frontiers in Marine Science
container_volume 10
publishDate 2023
institution Swansea University
issn 2296-7745
doi_str_mv 10.3389/fmars.2023.1229486
publisher Frontiers Media SA
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
url http://dx.doi.org/10.3389/fmars.2023.1229486
document_store_str 1
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description Coastal wetlands, such as saltmarshes, are globally widespread and highly effective at capturing and storing 'blue carbon’ and have the potential to regulate climate over varying timescales. Yet only Australia and the United States of America have national inventories of organic carbon held within saltmarsh habitats, hindering the development of policies and management strategies to protect and preserve these organic carbon stores. Here we couple a new observational dataset with 4,797 samples from 26 saltmarshes across Great Britain to spatially model organic carbon stored in the soil and the above and belowground biomass of Great British saltmarshes. Using average values derived from the 26 marshes, we deliver first-order estimates of organic carbon stocks across Great Britain’s 448 saltmarshes (451.66 km2). The saltmarshes of Great Britain contain 5.20 ± 0.65 Mt of organic carbon, 93% of which is in the soil. On average, the saltmarshes store 11.55 ± 1.56 kg C m-2 with values ranging between 2.24 kg C m-2 and 40.51 kg C m-2 depending on interlinked factors such as geomorphology, organic carbon source, sediment type (mud vs sand), sediment supply, and relative sea level history. These findings affirm that saltmarshes represent the largest intertidal blue carbon store in Great Britain, yet remain an unaccounted for component of the United Kingdom’s natural carbon stores.
published_date 2023-12-04T15:37:19Z
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