Effects of irrigation on soil water distribution and shallow groundwater evaporation

Water distribution and shallow groundwater evaporation in soil with different groundwater table under three irrigation treatments were investigated through soil column experiments in lab.Results showed irrigation schedule and groundwater table had a great influence on the shallow groundwater evaporation.The evaporation of shallow groundwater would decrease substantially when irrigation frequency increased at the same groundwater table and same irrigation quantity.The evaporation of shallow groundwater decreased at low irrigation frequency under the same groundwater table when the quantity per irrigation increased.Deeper the groundwater table,less the evaporation.