Smeaton, C, Barlow, NLM orcid.org/0000-0002-2713-2543 and Austin, WEN (2020) Coring and compaction: Best practice in blue carbon stock and burial estimations. Geoderma, 364. 114180. ISSN 0016-7061
Abstract
A comparison of gouge and hammer coring techniques in intertidal wetland soils highlights a significant effect of soil compaction of up to 28% associated with the widely applied hammer coring method employed in Blue Carbon research. Hammer coring reduces the thickness of the soil profile and increases the dry bulk density, which results in an overestimation of the soil OC stock of up to 22%. In saltmarshes with multiple different soil units, we show that hammer coring is unsuitable for the calculation of OC stocks and should be avoided in favour of Russian or gouge cores. Compaction changes both soil dry bulk density and porosity and we show that resultant radiometric chronologies are compromised, almost doubling mass accumulation rates. While we show that the OC (%) content of these sediments is largely unchanged by coring method, the implication for OC burial rates are profound because of the significant effect of hammer coring on the calculation of soil mass accumlation rates.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 Elsevier B.V. All rights reserved. This is an author produced version of a paper published in Geoderma. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Sediment, Coring; Compaction, Carbon; Intertidal; Saltmarsh |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Institute for Applied Geosciences (IAG) (Leeds) |
Funding Information: | Funder Grant number NERC NE/R010846/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 22 Jan 2020 12:12 |
Last Modified: | 21 Jan 2021 01:38 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.geoderma.2020.114180 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:155877 |