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Implementation of Sulfate Adsorption in the SAFE Model

Tamon Fumoto and Harald Sverdrup

Department of Chemical Engineering II, Lund University, P.O. Box 124, S-221 00 Lund, Sweden



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Fig. 1. The time series of atmospheric depositions at the Solling D1 plot used in the simulation

 


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Fig. 2. The time series of net base cation and nitrogen uptake at the Solling D1 plot used in the simulation

 


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Fig. 3. The SO2-4 adsorption isotherms (upper graph) and relationships between SO2-4 and H+ adsorption (lower graph) of the fourth layer soil at Solling, calculated by the Extended Constant Capacitance Model (ECCM) for a liquid phase SO2-4 concentration range of 0.1 to 3.0 mmol L-1

 


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Fig. 4. Simulated base saturation of the second layer (20 cm deep) and fourth layer (70 cm deep) soils at the Solling D1 plot

 


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Fig. 5. Simulated soil solution pH at the depths of 20 and 70 cm at the Solling D1 plot

 


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Fig. 6. Simulated soil solution SO2-4 concentration at the depths of 20 and 70 cm at the Solling D1 plot

 


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Fig. 7. Simulated soil solution base cation concentration at the depths of 20 and 70 cm at the Solling D1 plot

 


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Fig. 8. Simulated SO2-4 and H+ adsorption in the second layer (20 cm deep) and fourth layer (70 cm deep) soils at the Solling D1 plot

 





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The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
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Soil Science Society of America Journal
Copyright © 2001 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.