the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Reviews and syntheses: Weathering of silicate minerals in soils and watersheds: Parameterization of the weathering kinetics module in the PROFILE and ForSAFE models
Harald Ulrik Sverdrup
Eric Oelkers
Martin Erlandsson Lampa
Salim Belyazid
Daniel Kurz
Cecilia Akselsson
Abstract. The PROFILE model, now incorporated in the ForSAFE model can accurately reproduce the chemical and mineralogical evolution of the soil unsaturated zone. However, in deeper soil layers and in groundwater systems, it appears to overestimate weathering rates. This overestimation has been corrected by improving the kinetic expression describing mineral dissolution by adding or upgrading breaking functions
. The base cation and aluminium brakes have been strengthened, and an additional silicate brake has been developed, improving the ability to describe mineral-water reactions in deeper soils. These brakes are developed from a molecular-level model of the dissolution mechanisms. Equations, parameters and constants describing mineral dissolution kinetics have now been obtained for 102 different minerals from 12 major structural groups, comprising all types of minerals encountered in most soils. The PROFILE and ForSAFE weathering sub-model was extended to cover two-dimensional catchments, both in the vertical and the horizontal direction, including the hydrology. Comparisons between this improved model and field observations is available in Erlandsson Lampa et al. (2019, This special issue). The results showed that the incorporation of a braking effect of silica concentrations was necessary and helps obtain more accurate descriptions of soil evolution rates at greater depths and within the saturated zone.
Harald Ulrik Sverdrup et al.


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RC1: 'Review', Anonymous Referee #1, 31 Mar 2019
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AC1: 'Answer to reviewers', Harald Ulrik Sverdrup, 01 Jun 2019
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AC1: 'Answer to reviewers', Harald Ulrik Sverdrup, 01 Jun 2019
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RC2: 'Review of the Sverdrup et al. contribution', Anonymous Referee #2, 23 Apr 2019
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AC2: 'Comment o reviewer 2', Harald Ulrik Sverdrup, 01 Jun 2019
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AC2: 'Comment o reviewer 2', Harald Ulrik Sverdrup, 01 Jun 2019
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RC3: 'Comments on bg-2019-38 “Reviews and synthesis: Weathering of silicate minerals in soils and watersheds: Parameterization of the weathering kinetics module in the PROFILE and ForSAFE models”', Anonymous Referee #3, 26 Apr 2019
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AC3: 'answer to reviewers comments', Harald Ulrik Sverdrup, 01 Jun 2019
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AC4: 'new version of manuscript', Harald Ulrik Sverdrup, 01 Jun 2019
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AC4: 'new version of manuscript', Harald Ulrik Sverdrup, 01 Jun 2019
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AC3: 'answer to reviewers comments', Harald Ulrik Sverdrup, 01 Jun 2019


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RC1: 'Review', Anonymous Referee #1, 31 Mar 2019
-
AC1: 'Answer to reviewers', Harald Ulrik Sverdrup, 01 Jun 2019
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AC1: 'Answer to reviewers', Harald Ulrik Sverdrup, 01 Jun 2019
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RC2: 'Review of the Sverdrup et al. contribution', Anonymous Referee #2, 23 Apr 2019
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AC2: 'Comment o reviewer 2', Harald Ulrik Sverdrup, 01 Jun 2019
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AC2: 'Comment o reviewer 2', Harald Ulrik Sverdrup, 01 Jun 2019
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RC3: 'Comments on bg-2019-38 “Reviews and synthesis: Weathering of silicate minerals in soils and watersheds: Parameterization of the weathering kinetics module in the PROFILE and ForSAFE models”', Anonymous Referee #3, 26 Apr 2019
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AC3: 'answer to reviewers comments', Harald Ulrik Sverdrup, 01 Jun 2019
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AC4: 'new version of manuscript', Harald Ulrik Sverdrup, 01 Jun 2019
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AC4: 'new version of manuscript', Harald Ulrik Sverdrup, 01 Jun 2019
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AC3: 'answer to reviewers comments', Harald Ulrik Sverdrup, 01 Jun 2019
Harald Ulrik Sverdrup et al.
Harald Ulrik Sverdrup et al.
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Cited
3 citations as recorded by crossref.
- Geochemical Variability of Surface Sediment in Post-Mining Lakes Located in the Muskau Arch (Poland) and Its Relation to Water Chemistry M. Gąsiorowski et al. 10.1007/s11270-021-05057-8
- Origin, diversity and geothermal potentiality of thermal and mineral waters in Vrnjačka Banja, Serbia J. Štrbački et al. 10.1007/s12665-020-09050-y
- Weathering rates in Swedish forest soils C. Akselsson et al. 10.5194/bg-16-4429-2019