INFILTRATION CAPACITY DETERMINED BY RAINFALL SIMULATOR AND INFILTROMETER RINGS METHOD

ABSTRACT

Because of the high variability among the methods used to obtain soil infiltration capacity, the evaluation method to be used should be most consistent with the specific irrigation system, otherwise, the obtained information may not be reliable for designing. In this research, the "ring infiltrometer" and the "sprinkler infiltrometer" (rainfall simulator) methods were evaluated, for soil field-capacity moisture conditions. The results showed that ring infiltrometer method gives higher values for infiltration capacity than those obtained by the rainfall simulator.

Key words:
rainfall simulator; infiltration; infiltration velocity