Tillage Mixing
This special (non-standard) HYDRUS-1D option allows averaging (homogenization; not implemented for the dual-porosity model) of water contents and concentrations due to tillage over a specified depth at specified times (given by Print Times). The option was developed for the manuscript Mallmann et al. (2014).
Download a brief report describing implementation and verification.
Download the computational module for direct problems.
- Project Group: Tillage Mixing
- Description: Examples demonstrating the use of the special computational module of HYDRUS-1D that performs Tillage Mixing at specified times
- Availability: Download HYDRUS projects now (0.63 MB)
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Project
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Description
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Tillage_1
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Standard h1d_calc.exe code (no mixing); sorbing nonlinear and nonequilibrium solute.
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Tillage_2
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Mixing (new) code; No mixing considered.
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Tillage_3
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Mixing (new) code; Mixing depth of 20 cm; Mixing on days 300 and 600.
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Tillage_4
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Mixing (new) code; Mixing depth of 30 cm; Mixing on days 300 and 600.
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References
- Mallmann, F. J. K., D. R. dos Santos, C. A. Ceretta, C. Cella, J. P. G. Minella, R. L. Guma, V. Filipović, F. van Oort, and J. Šimůnek, Soil tillage to reduce surface metal contamination - model development and simulations of zinc and copper concentration profiles in a pig slurry-amended soil, Agriculture, Ecosystems and Environment, 196, 59-68, doi: 10.1016/j.agee.2014.06.024, 2014.