The influence of air resistance and soil bulk density on infiltration rate

accumulative infiltration and wetting front was analyzed

and the average water content increment during infiltration was researched.Air resistance and soil bulk density have obvious influence on infiltration rate

accumulative infiltration and wetting front: the infiltration decrease ratio(IDR) of accumulative infiltration due to soil bulk density increment was a constant

and IDR was 31.79% and 52.03% for 1.4 g/cm~3 and 1.5 g/cm~3 soil bulk density compare to 1.3 g/cm~3 soil bulk density.The infiltration decrease ratio(IDR) of wetting front due to soil bulk density increment was not a constant which was influenced by time. The infiltration decrease ratio(IDR) of accumulative infiltration and wetting front due to air resistance was not a constant which was influenced by time. The average water content increments during infiltration were 0.377

0.341 1 and 0.313 7 for 1.3

1.4 and 1.5 g/cm~3 soil bulk density

respectively

in condition of no air resistance.