Boundary effects on solute transport in finite soil columns Academic Article uri icon

abstract

  • The influence of inlet and outlet disturbances on solute transport in finite soil columns was investigated. The boundary conditions on the estimation of the dispersion coefficient and retardation factor for short soil columns were formulated. Unsaturated miscible displacement experiments using Br- tracer were carried out on undisturbed columns of a fine-textured Ultisol. One- and two-layer simulations with experimental data indicated that the analytical solution with a semi-infinite interface boundary best approximated effluent concentration and a macroscopically discontinuous resident concentration at the interface between the soil and porous plates.

published proceedings

  • Water Resources Research

author list (cited authors)

  • Schwartz, R. C., McInnes, K. J., Juo, A., Wilding, L. P., & Reddell, D. L.

citation count

  • 35

complete list of authors

  • Schwartz, RC||McInnes, KJ||Juo, ASR||Wilding, LP||Reddell, DL

publication date

  • March 1999