Solute(Br-) transport in soils with 1.7

1.2 and 0.8m groundwater table(GWT) under 90mm/15d and 30 mm/5 d irrigation frequencies was investigated through disturbed soil columns in lab.Results show the downward tendency of solute transport changes in soils with different GWT or same GWT under high and low irrigation frequencies.Solute(Br-) transport rates in soils with high irrigation frequency is converted gradually which is from originally slower to quicker than the ones in soils with low irrigation frequency as GWT varies from deep to shallow.Br-movement in soils with high irrigation frequency is concentrated downward.Br-distributions in soils with low irrigation frequency become more uniform and wider as GWT get deeper.The accumulation of soil solute(Br-) at soil surface is abated by high irrigation frequency.