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dc.contributor.authorTorres-Sallan, Gemma
dc.contributor.authorSchulte, Rogier P.
dc.contributor.authorLanigan, Gary
dc.contributor.authorByrne, Kenneth
dc.contributor.authorReidy, Brian
dc.contributor.authorSimó, Iolanda
dc.contributor.authorSix, Johan
dc.contributor.authorCreamer, Rachel
dc.date.accessioned2020-07-02T14:21:12Z
dc.date.available2020-07-02T14:21:12Z
dc.date.issued2017-04-06
dc.identifier.citationTorres-Sallan, G., Schulte, R., Lanigan, G. et al. Clay illuviation provides a long-term sink for C sequestration in subsoils. Sci Rep 7, 45635 (2017). https://doi.org/10.1038/srep45635en_US
dc.identifier.urihttp://hdl.handle.net/11019/2126
dc.descriptionpeer-revieweden_US
dc.description.abstractSoil plays a key role in the global carbon (C) cycle. Most current assessments of SOC stocks and the guidelines given by Intergovernmental Panel on Climate Change (IPCC) focus on the top 30 cm of soil. Our research shows that, when considering only total quantities, most of the SOC stocks are found in this top layer. However, not all forms of SOC are equally valuable as long-term stable stores of carbon: the majority of SOC is available for mineralisation and can potentially be re-emitted to the atmosphere. SOC associated with micro-aggregates and silt plus clay fractions is more stable and therefore represents a long-term carbon store. Our research shows that most of this stable carbon is located at depths below 30 cm (42% of subsoil SOC is located in microaggregates and silt and clay, compared to 16% in the topsoil), specifically in soils that are subject to clay illuviation. This has implications for land management decisions in temperate grassland regions, defining the trade-offs between primary productivity and C emissions in clay-illuviated soils, as a result of drainage. Therefore, climate smart land management should consider the balance between SOC stabilisation in topsoils for productivity versus sequestration in subsoils for climate mitigation.en_US
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.relation.ispartofseriesScientific Reports;Vol. 7 (1)
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectGlobal carbon cycleen_US
dc.subjectCarbon sequestrationen_US
dc.subjectSoilen_US
dc.subjectSoil organic carbonen_US
dc.titleClay illuviation provides a long-term sink for C sequestration in subsoilsen_US
dc.typeArticleen_US
dc.identifier.doihttps://dx.doi.org/10.1038/srep45635
dc.contributor.sponsorIrish Soil Information System projecten_US
dc.contributor.sponsorTeagascen_US
dc.contributor.sponsorEnvironmental Protection Agencyen_US
dc.contributor.sponsorDepartment of Agriculture Food and the Marineen_US
dc.contributor.sponsorGrantNumberRSF 10/RD/SC/716en_US
refterms.dateFOA2020-07-02T14:21:13Z


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