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dc.contributor.authorSmeaton, Craig
dc.contributor.authorAustin, William
dc.identifier.citationSmeaton , C & Austin , W 2022 , ' Understanding the role of terrestrial and marine carbon in the mid-latitude fjords of Scotland ' , Global Biogeochemical Cycles , vol. 36 , no. 11 , e2022GB007434 .
dc.identifier.otherPURE: 281963909
dc.identifier.otherPURE UUID: 6d72892f-2d5b-48d1-a46f-d2200e358f5a
dc.identifier.otherORCID: /0000-0003-4535-2555/work/123195796
dc.identifier.otherScopus: 85142913441
dc.identifier.otherWOS: 000888513700001
dc.descriptionThis work was supported by the Scottish Blue Carbon Forum. Additional, sample collection was supported by the Biotechnology and Biological Sciences Research Council (BBSRC) and the manuscript submitted to Global Biogeochemical Cycles Natural Environment Research Council (NERC) (BB/M026620/01). NERC also supported the analysis within this project through the NERC Life Science Mass Spectrometry Facility (CEH_L_098_11_2015 and CEH_L-155-05-2018).en
dc.description.abstractThe sediments within fjords are critical components of the mid- to high-latitude coastal carbon (C) cycle, trapping and storing more organic carbon (OC) per unit area than other marine sedimentary environments. Located at the land-ocean transition, fjord sediments receive OC from both marine and terrestrial environments; globally, it has been estimated that 55% to 62% of the OC held within modern fjord sediments originates from terrestrial environments. However, the mid-latitude fjords of the Northern Hemisphere have largely been omitted from these global compilations. Here we investigate the mechanism driving the distribution of OC originating from different sources within the sediments of 38 Scottish fjords. From an array of fjord characteristics, the tidal range and outer sill depth were identified as the main drivers governing the proportions of marine and terrestrial OC in the sediments. Utilizing this relationship, we estimate that on average 52 ± 10% of the OC held within the sediments of all Scotland’s fjords is terrestrial in origin. These findings show that the Scottish fjords hold equivalent quantities of terrestrial OC as other global fjord systems. However, the analysis also highlights that the sediments within 29 % of Scottish fjords are dominated by marine derived OC, which is driven by local fjord geomorphology and oceanography.
dc.relation.ispartofGlobal Biogeochemical Cyclesen
dc.rightsCopyright © 2022. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectMixing modelen
dc.subjectSoil erosionen
dc.subjectCarbon budgeten
dc.subjectGC Oceanographyen
dc.subjectGE Environmental Sciencesen
dc.subjectQE Geologyen
dc.subjectEarth and Planetary Sciences(all)en
dc.subjectEarth-Surface Processesen
dc.subjectEnvironmental Science(all)en
dc.subjectEnvironmental Chemistryen
dc.subjectGlobal and Planetary Changeen
dc.subjectSDG 13 - Climate Actionen
dc.subjectSDG 14 - Life Below Wateren
dc.subjectSDG 15 - Life on Landen
dc.titleUnderstanding the role of terrestrial and marine carbon in the mid-latitude fjords of Scotlanden
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Geography & Sustainable Developmenten
dc.contributor.institutionUniversity of St Andrews. Environmental Change Research Groupen
dc.contributor.institutionUniversity of St Andrews. Bell-Edwards Geographic Data Instituteen
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. Coastal Resources Management Groupen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews. St Andrews Sustainability Instituteen
dc.description.statusPeer revieweden

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