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Agricultural irrigation is the most prevalent area of the all sectors which are used water and 74% of water is consumed on agricultural irrigation area in Turkey. In many parts of the our country, agricultural yield losses occur in irrigation field and high irrigation costs are the top reasons which reduce benefits expected from irrigation. Despite efficiency of water use is as low as 40-50% rate in surface irrigation systems; water efficiency can reach 90-95% with pressure irrigation systems. In this study, acquisitions which are obtained by revision and changes in irrigation systems in Şanlıurfa which presents the most important region in GAP (Southeast Anatolian Project) are discussed. In a state of conversion of areas which are irrigated by classical system to sprinkler irrigation system, 525 hm3 amount of water from 1,500 hm3 will be saved on annual base while 900 hm3 amount of water will be saved for drip irrigation system. In case of transformation to sprinkler irrigation system, 283 GWh amount of energy can be saved while 483 GWh amount of energy can be saved with drip irrigation system. Energy savings can bring a benefit 25.6 and 43.5 million euro in total on annual base respectively with 3 Dams and HEPPs in region.
