Articles | Volume 4, issue 4
SOIL, 4, 237–250, 2018
https://doi.org/10.5194/soil-4-237-2018

Special issue: Quantifying weathering rates for sustainable forestry (BG/SOIL...

SOIL, 4, 237–250, 2018
https://doi.org/10.5194/soil-4-237-2018

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 et al.

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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)
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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.