Abstract:
A large rainfall simulator was used to study infiltration on six
soil plots. Water content and capillary pressure were measured during
steady rainfall at rates less than required to produce runoff. The
equipment and procedures used to make these measurements are discussed.
Water content and capillary pressure data obtained as a function of
time were combined to produce the in situ water holding capacity curve
for the profile. The results were compared with data obtained from
soil samples using conventional laboratory techniques.
Infiltration capacity curves were also obtained for these soils
using high rates of rainfall. The infiltration capacity curves for
the plots are compared using scaled variables.
