Predicting Runoff Initiation Times Under Field Conditions in Tropical (Hawaii) Soils1
- L. R. Ahuja,
- E. W. Dangler and
- S. A. El-Swaify2
Runoff initiation times measured during field rain-simulation studies on 10 important Hawaii soils are examined in relation to antecedent soil-water status. The experimental data show considerable scatter due mainly to natural soil variability within a soil series. However, the data exhibited a fairly proportional relationship between runoff initiation time and antecedent soil saturation deficit (final minus initial soil-water content), in accordance with a simple Green-Ampt type equation. The results indicate a potential method for estimating erosive portions of rainstorms and subsequent soil loss hazards in relation to varying antecedent soil-water contents during different seasons of the year.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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