Parameterization and evaluation of sulfate adsorption in a dynamic soil chemistry model.

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Parameterization and evaluation of sulfate adsorption in a dynamic soil chemistry model. / Fransson, Liisa; Alveteg, Mattias; Warfvinge, Per.

In: Environmental Pollution, Vol. 124, No. 1, 2003, p. 119-125.

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TY - JOUR

T1 - Parameterization and evaluation of sulfate adsorption in a dynamic soil chemistry model.

AU - Fransson, Liisa

AU - Alveteg, Mattias

AU - Warfvinge, Per

PY - 2003

Y1 - 2003

N2 - Sulfate adsorption was implemented in the dynamic, multi-layer soil chemistry model SAFE. The process is modeled by an isotherm in which sulfate adsorption is considered to be fully reversible and dependent on sulfate concentration as well as pH in soil solution. The isotherm was parameterized by a site-specific series of simple batch experiments at different pH (3.8–5.0) and sulfate concentration (10–260 mol l−1) levels. Application of the model to the Lake Gårdsjön roof covered site shows that including sulfate adsorption improves the dynamic behavior of the model and sulfate adsorption and desorption delay acidification and recovery of the soil. The modeled adsorbed pool of sulfate at the site reached a maximum level of 700 mmol/m2 in the late 1980s, well in line with experimental data.

AB - Sulfate adsorption was implemented in the dynamic, multi-layer soil chemistry model SAFE. The process is modeled by an isotherm in which sulfate adsorption is considered to be fully reversible and dependent on sulfate concentration as well as pH in soil solution. The isotherm was parameterized by a site-specific series of simple batch experiments at different pH (3.8–5.0) and sulfate concentration (10–260 mol l−1) levels. Application of the model to the Lake Gårdsjön roof covered site shows that including sulfate adsorption improves the dynamic behavior of the model and sulfate adsorption and desorption delay acidification and recovery of the soil. The modeled adsorbed pool of sulfate at the site reached a maximum level of 700 mmol/m2 in the late 1980s, well in line with experimental data.

U2 - 10.1016/S0269-7491(02)00413-X

DO - 10.1016/S0269-7491(02)00413-X

M3 - Article

VL - 124

SP - 119

EP - 125

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

IS - 1

ER -