Infiltration Capacity of Forest Soils Under Cryptomeria japonica

This paper describes the infiltration study made under Cryptomeria japonica at Sonada. The initial infiltration rates, in case of site located in heavily littered soil were found to be very high ranging from 69.5 cm per hour followed by 27.24 cm per hour for non-littered soil. In the next five minutes interval the drop in infiltration rates varied from 79 to 62 per cent in heavily littered soil followed by 88 to 51 per cent in non-littered soil. The constant infiltration rate varied from 6.0 to 0.64 cm per hour.