tailieunhanh - Determination of irrigation performance of water user associations in the vicinity of Sarigöl and Alaflehir using remote sensing techniques

The aim of this research was to determine the irrigation performance of Sarigöl, Bag, and Üzüm Water User Associations (WUAs) in the vicinity of Sarigöl and Alaflehir using remote sensing techniques. For this purpose, the performance of the irrigation system for the 2004 irrigation season (May to September) was determined according to 5 indicators, namely overall consumed ratio (ep), relative water supply (RWS). | Turk J Agric For 31 (2007) 287-296 © TÜB‹TAK Determination of Irrigation Performance of Water User Associations in the Vicinity of Sar›göl and Alaflehir Using Remote Sensing Techniques Bekir S›tk› KARATAfi1, Erhan AKKUZU2,*, Musa AVCI2 1 Provincial Special Administration, Department of Agricultural Services, ‹zmir - TURKEY 2 Ege University, Faculty of Agriculture, Department of Agricultural Structures and Irrigation, ‹zmir - TURKEY Received: Abstract: The aim of this research was to determine the irrigation performance of Sar›göl, Ba¤, and Üzüm Water User Associations (WUAs) in the vicinity of Sar›göl and Alaflehir using remote sensing techniques. For this purpose, the performance of the irrigation system for the 2004 irrigation season (May to September) was determined according to 5 indicators, namely overall consumed ratio (ep), relative water supply (RWS), depleted fraction (DF), crop water deficit (CWD), and relative evapotranspiration (RET). Potential and actual evapotranspiration parameters used in determining these indicators were estimated according to the SEBAL (Surface Energy Balance) method using NOAA-16/AVHRR images. Seasonal averages of Sar›göl, Ba¤, and Üzüm WUAs calculated from the results were, respectively, , , and for ep; , , and for RWS; , , and for DF; , , and mm month-1 for CWD; and , , and for RET. According to the seasonal average values of all the performance indicators, the irrigation performance of all WUAs was usually poor, and only the depleted fraction indicator for Üzüm WUA was within the range of acceptability. Thus, performance indicators showed that less irrigation water was supplied to WUAs than was needed. Key Words: Irrigation performance, remote sensing, SEBAL Uzaktan Alg›lama Tekniklerinden Yararlanarak Sar›göl ve Alaflehir Yöresi Sulama Birliklerinde Sulama Performans›n›n Belirlenmesi Özet: Bu araflt›rmada, uzaktan alg›lama tekni¤i kullan›larak, .

• Nông nghiệp
• Irrigation performance
• Remote sensing
• Relative water supply
• Water user associations
• Crop water deficit
• Depleted fraction