Field Measurement of Unsaturated SoilWater Movement Parameters

The insitu ponding infiltration test was conducted with the doublering infiltration device and the soil water content profile was measured with the γ ray in Qinwangchuan irrigatedarea. Based on the measured soil water retention curve in lab and field, the soilwater movement parameters were determined and the measured results in lab and field were compared and analyzed in order to lay a foundation for simulation of unsaturated soilwater movement in the area.