A Comparison of Hydraulic Conductivities Calculated with Morphometric and Physical Methods

Authors:
  • JBJ. Bouma
    J. Bouma
  • JDJ. L. Denning
    J. L. Denning

Abstract
Hydraulic conductivity of coarse porous media with packing pores could be calculated not only with accepted physical, but also with morphometric techniques if matching factors were used. Morphometric K curves were closest to physical curves derived from moisture adsorption characteristics. The morphometric technique can be applied exclusively to small or fragile homogeneous soil materials that cannot be sampled for moisture retention determinations in the laboratory. The pore interaction model of Marshall overestimated K sat when morphometric r ‐values were used. Moisture retention curves, calculated with morphometric data, agreed well in coarse porous media with physical adsorption curves.
Funding Information
  • College of Agricultural and Life Sciences