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 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. Dubal, V., Comparsion of Water and Solute Transport between Lysimeter and Field Soils Using Two-Dimensional Numerical Simulations, Masters Thesis, Washington State University, 1999.