{"refrec":{"BRefID":254294,"RR":"<b>Brenner, H.; Braeckman, U.; Le Guitton, M.; Meysman, F.J.R.</b> (2016). The impact of sedimentary alkalinity release on the water column CO<sub>2</sub> system in the North Sea. <i>Biogeosciences 13(3)</i>: 841-863. <a href=\"http://dx.doi.org/10.5194/bg-13-841-2016\" target=\"_blank\">dx.doi.org/10.5194/bg-13-841-2016</a>","BEntID":246107,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Biogeosciences 13(3)</i>: 841-863. <a href=\"https://dx.doi.org/10.5194/bg-13-841-2016\" target=\"_blank\">https://dx.doi.org/10.5194/bg-13-841-2016</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Brenner, H.; Braeckman, U.; Le Guitton, M.; Meysman, F.J.R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Brenner, H. <i>et al.</i>","Englishabstract":"It has been previously proposed that alkalinity release from sediments can play an important role in the carbonate dynamics on continental shelves, lowering the <i>p</i>CO<sub>2</sub> of seawater and hence increasing the CO<sub>2</sub> uptake from the atmosphere. To test this hypothesis, sedimentary alkalinity generation was quantified within cohesive and permeable sediments across the North Sea during two cruises in September 2011 (basin-wide) and June 2012 (Dutch coastal zone). Benthic fluxes of oxygen (O<sub>2</sub>), alkalinity (<i>A</i><sub>T</sub>) and dissolved inorganic carbon (DIC) were determined using shipboard closed sediment incubations. Our results show that sediments can form an important source of alkalinity for the overlying water, particularly in the shallow southern North Sea, where high <i>A</i><sub>T</sub> and DIC fluxes were recorded in near-shore sediments of the Belgian, Dutch and German coastal zone. In contrast, fluxes of <i>A</i><sub>T</sub> and DIC are substantially lower in the deeper, seasonally stratified, northern part of the North Sea. Based on the data collected, we performed a model analysis to constrain the main pathways of alkalinity generation in the sediment, and to quantify how sedimentary alkalinity drives atmospheric CO<sub>2</sub> uptake in the southern North Sea. Overall, our results show that sedimentary alkalinity generation should be regarded as a key component in the CO<sub>2</sub> dynamics of shallow coastal systems.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The impact of sedimentary alkalinity release on the water column CO<sub>2</sub> system in the North Sea","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2016-09-28","DateCreate":"2016-03-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000370973900015","VABBcode":null,"OpenAcc":1,"DOI":"10.5194/bg-13-841-2016"},"refs":null,"anarec":{"AnaID":254294,"PubliDate":2016,"Pagination":"841-863","XtraPublOfAnaID":null,"ISBN":null,"Volume":"13","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":68092,"SerRR":"<b>Gattuso, J.P.; Kesselmeier, J. (Ed.)</b> Biogeosciences. Copernicus Publications: Göttingen.  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