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Saltmarsh blue carbon accumulation rates and their relationship with sea-level rise on a multi-decadal timescale in northern England
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dc.contributor.author | Gore, Catrina | |
dc.contributor.author | Gehrels , Roland | |
dc.contributor.author | Smeaton, Craig | |
dc.contributor.author | Andrews, Luke | |
dc.contributor.author | McMahon, Lucy | |
dc.contributor.author | Hibbert, Fiona | |
dc.contributor.author | Austin, William | |
dc.contributor.author | Nolte, Stafanie | |
dc.contributor.author | Garrett, Ed | |
dc.date.accessioned | 2024-02-16T11:30:05Z | |
dc.date.available | 2024-02-16T11:30:05Z | |
dc.date.issued | 2024-04 | |
dc.identifier | 299049919 | |
dc.identifier | 194a113c-52e2-4329-a0e5-e13bf21a8b5b | |
dc.identifier | 85185159283 | |
dc.identifier.citation | Gore , C , Gehrels , R , Smeaton , C , Andrews , L , McMahon , L , Hibbert , F , Austin , W , Nolte , S & Garrett , E 2024 , ' Saltmarsh blue carbon accumulation rates and their relationship with sea-level rise on a multi-decadal timescale in northern England ' , Estuarine, Coastal and Shelf Science , vol. 299 , 108665 . https://doi.org/10.1016/j.ecss.2024.108665 | en |
dc.identifier.issn | 0272-7714 | |
dc.identifier.other | ORCID: /0000-0003-4535-2555/work/153451605 | |
dc.identifier.uri | https://hdl.handle.net/10023/29272 | |
dc.description | Feldwork and elemental and thermogravimetric analyses were conducted as a part of the NERC funded (NE/R010846/1) Carbon Storage in Intertidal Environments (C-SIDE) project (https://www.c-side.org/). | en |
dc.description.abstract | Saltmarshes are widely thought to sequester carbon at rates significantly exceeding those found in terrestrial environments. This ability arises from the in-situ production of plant biomass and the effective trapping and storage of both autochthonous and allochthonous organic carbon. The role saltmarshes play in climate change mitigation, through accumulating ‘blue’ carbon, depends on both the rate at which carbon accumulates within sediments and the rapidity with which carbon is remineralised. It has been hypothesized that carbon accumulation rates, in turn, depend on the local rate of relative sea-level rise, with faster sea-level rise providing more accommodation space for carbon storage. This relationship has been investigated over long (millennial) and short (decadal) timescales but without accounting for the impact of higher quantities of labile carbon in more recently deposited sediment. This study addresses these three key aspects in a saltmarsh sediment study from Lindisfarne National Nature Reserve (NNR), northern England, where there is a comparatively pristine marsh. We quantify rates of carbon accumulation by combining a Bayesian age-depth model based on 210Pb and 137Cs activities with centimetre-resolution organic carbon density measurements. We also use thermogravimetric analyses to determine the relative proportions of labile and recalcitrant organic matter and calculate the net recalcitrant organic matter accumulation rate. Results indicate that during the 20th century more carbon accumulated at the Lindisfarne NNR saltmarsh during decades with relatively high rates of sea-level rise. The post-depositional loss of labile carbon down the core results in a weaker though still significant relationship between recalcitrant organic matter accumulation and sea-level change. Thus, increasing saltmarsh carbon accumulation driven by higher rates of sea-level rise is demonstrated over recent multi-decadal timescales. | |
dc.format.extent | 11 | |
dc.format.extent | 5118337 | |
dc.language.iso | eng | |
dc.relation.ispartof | Estuarine, Coastal and Shelf Science | en |
dc.subject | Labile | en |
dc.subject | Recalcitrant | en |
dc.subject | Thermogravimetric | en |
dc.subject | Chronology | en |
dc.subject | 210Pb sediment dating | en |
dc.subject | Saltmarsh | en |
dc.subject | Salt marsh | en |
dc.subject | Tidal marsh | en |
dc.subject | Coastal | en |
dc.subject | Carbon | en |
dc.subject | Organic carbon | en |
dc.subject | Organic matter | en |
dc.subject | England | en |
dc.subject | UK | en |
dc.subject | Lindisfarne | en |
dc.subject | Sea level | en |
dc.subject | RSL | en |
dc.subject | GB Physical geography | en |
dc.subject | Earth-Surface Processes | en |
dc.subject | General Environmental Science | en |
dc.subject | Global and Planetary Change | en |
dc.subject | DAS | en |
dc.subject | SDG 13 - Climate Action | en |
dc.subject | SDG 14 - Life Below Water | en |
dc.subject | SDG 15 - Life on Land | en |
dc.subject.lcc | GB | en |
dc.title | Saltmarsh blue carbon accumulation rates and their relationship with sea-level rise on a multi-decadal timescale in northern England | en |
dc.type | Journal article | en |
dc.contributor.sponsor | NERC | en |
dc.contributor.institution | University of St Andrews. School of Geography & Sustainable Development | en |
dc.contributor.institution | University of St Andrews. Environmental Change Research Group | en |
dc.contributor.institution | University of St Andrews. Bell-Edwards Geographic Data Institute | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. Marine Alliance for Science & Technology Scotland | en |
dc.contributor.institution | University of St Andrews. St Andrews Sustainability Institute | en |
dc.identifier.doi | https://doi.org/10.1016/j.ecss.2024.108665 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | NE/R010846/1 | en |
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