Articles | Volume 4, issue 4
Original research article
26 Oct 2018
Original research article |  | 26 Oct 2018

Aluminium and base cation chemistry in dynamic acidification models – need for a reappraisal?

Jon Petter Gustafsson, Salim Belyazid, Eric McGivney, and Stefan Löfgren


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Revision (24 Sep 2018) by Boris Jansen
AR by Jon Petter Gustafsson on behalf of the Authors (08 Oct 2018)  Author's response   Manuscript 
ED: Publish as is (16 Oct 2018) by Boris Jansen
ED: Publish as is (18 Oct 2018) by Jorge Mataix-Solera (Executive editor)
AR by Jon Petter Gustafsson on behalf of the Authors (20 Oct 2018)  Manuscript 
Short summary
This paper investigates how different dynamic soil chemistry models describe the processes governing aluminium and base cations in acid soil waters. We find that traditional cation-exchange equations, which are still used in many models, diverge from state-of-the-art complexation submodels such as WHAM, SHM, and NICA-Donnan when large fluctuations in pH or ionic strength occur. In conclusion, the complexation models provide a better basis for the modelling of chemical dynamics in acid soils.