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Due to arid climate of Uzbekistan, water scarcity threatens the sustainable development of irrigated agriculture.In future, accounting all nonconventional water resources to mitigate water scarcity and to increase insitu crop water use become main topic for most researches.In this context, groundwater evaporation (Egw) can be considered as one of the sources to meet crop-water use where the water table is shallow and groundwater salinity is low.In this study, soil texture, groundwater table depth and salinity maps are developed in geographical information system based on analyzing long-term archive data.These data then employed to estimate and map Egw through a semi-empirical approach.The results suggest that surface irrigation may be reduced considering Egw contribution ranging from 205-240 mm (e.g.light soils) to 305-360 mm (e.g.medium to heavy soils).The approach can be recommended to adjust the soil water balance in the root zone and optimize irrigation schedule.

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