Water and Solute Transport in Field Soils and Lysimeters: The Effect of the Lower Boundary Condition
Collaborators: H. Abdou, G. Khalil, V. Dubal (Washington State University)
Lysimeters are widely used to assess the environmental behavior of pesticides. It is often claimed that lysimeters represent field conditions much better than laboratory columns. The purpose of this project is to compare solute transport in lysimeters and field soils. Special emphasis is given to the evaluation of the effect of the lower boundary condition. Large lysimeters are mostly subject to a seepage boundary condition, where water drains freely out of the system
that is open to atmospheric conditions. We are using numerical simulations to determine differences in solute transport between field soils and lysimeters.
For more details click here.
Publications
- Abdou, H.M., and M. Flury, Simulation of water flow and solute transport in
free-drainage lysimeters and field soils with heterogeneous structures,
Eur. J. Soil Sci., 55, 229-241, 2004.
- Flury, M., M.V. Yates, and W.A. Jury, Numerical analysis of the effect of
the lower boundary condition on solute transport in lysimeters, Soil
Sci. Soc. Am. J., 1493-1499, 1999.
- Dubal, V., Comparison of Water and Solute Transport between Lysimeter and Field Soils Using Two-Dimensional Numerical Simulations, Masters Thesis, Washington State University, 1999.
- Flury, M., M.V. Yates, W.A. Jury, and D.L. Anderson, Variability of solute
transport in field lysimeters, in ACS Symp. Ser., 699, 65-75, 1998.
- Flury, M., Q.J. Wu, L. Wu, and L. Xu, Analytical solution for solute transport with depth-dependent transformation or sorption coefficients, Water Resour. Res., 34, 2931-2937, 1998.
Markus Flury 
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