Use of infiltration equation parameters to evaluate infiltration differences in the field

Abstract

The infiltration equations y = AtB and dy/dt = a + b/y have appeared in the literature, where y is the quantity of water which will enter a soil when water is applied to the surface, and t is the time. In the present investigation, the constants A, B, a, and b, are considered for their usefulness in characterizing infiltration in field basins on Greenfield loamy sand, a deep soil without profile development. The product parameter AB is compared with a parameter RT which is simply the average rate over the first two hours of infiltration. The results show AB to be 40 pct better statistically than RT . On the other hand, a + 10b, which is superior to a alone and b alone, is essentially no better statistically than RT.