Articles | Volume 19, issue 16
https://doi.org/10.5194/bg-19-3775-2022
https://doi.org/10.5194/bg-19-3775-2022
Research article
 | 
19 Aug 2022
Research article |  | 19 Aug 2022

Benthic alkalinity fluxes from coastal sediments of the Baltic and North seas: comparing approaches and identifying knowledge gaps

Bryce Van Dam, Nele Lehmann, Mary A. Zeller, Andreas Neumann, Daniel Pröfrock, Marko Lipka, Helmuth Thomas, and Michael Ernst Böttcher

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-161', Xinping Hu, 17 Apr 2022
  • RC2: 'Comment on egusphere-2022-161', Anonymous Referee #2, 22 Apr 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (13 Jun 2022) by Jack Middelburg
AR by Bryce Van Dam on behalf of the Authors (13 Jun 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (14 Jun 2022) by Jack Middelburg
RR by Xinping Hu (16 Jun 2022)
RR by Anonymous Referee #2 (20 Jun 2022)
ED: Publish subject to minor revisions (review by editor) (21 Jun 2022) by Jack Middelburg
AR by Bryce Van Dam on behalf of the Authors (27 Jun 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (02 Jul 2022) by Jack Middelburg
AR by Bryce Van Dam on behalf of the Authors (04 Aug 2022)  Manuscript 
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Short summary
We quantified sediment–water exchange at shallow sites in the North and Baltic seas. We found that porewater irrigation rates in the former were approximately twice as high as previously estimated, likely driven by relatively high bioirrigative activity. In contrast, we found small net fluxes of alkalinity, ranging from −35 µmol m−2 h−1 (uptake) to 53 µmol m−2 h−1 (release). We attribute this to low net denitrification, carbonate mineral (re-)precipitation, and sulfide (re-)oxidation.
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