Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. V
Written by Hasan DEĞİRMENCİ, Çağatay TANRIVERDİ, Fırat ARSLAN, Engin GÖNEN
Irrigation management is one of the key factors for the sustainability of irrigated agriculture. There has been a good number of performance indicators developed for the assessment of irrigation schemes. DSI (State Hydraulic Works) datas for 5 years (2011-2014) were used to calculate indicators of irrigated agricultural output. The most important one among them is the four basic comparative performance indicators related output to unit land and water. These “external†indicators provide the basis for comparison of irrigated agriculture performance. Comparative indicators are the output per cropped area ($/ha), output per unit command ($/ha), output per unit irrigation supply ($/m3), and output per unit water consumed ($/m3). In this paper, obtained the data that regarding irrigated cropped area, production, which are the output of the irrigated area in terms of gross or net value of production measured at local prices, command area, diverted irrigation supply, volume of water consumed by ET. This data were used to calculate comparative indicators. This study, in three climatic zones (Continental, Mediterranean and Black Sea) fourteen irrigation schemes, more than 20.000 ha of command area for each scheme, were assessed. Irrigation schemes were classified with regard to crop pattern. As a result of the study, based on the 2011-2014 years output per unit command area, output per cropped irrigated area, output per unit irrigation supply, output per unit water consumed were determined as 1040-7669 US$/ha, 2387-10129 US$/ha, 0.13-1.38 US$/m3, and 0.60-2.29 US$/m3, respectively. Calculated comparative indicators compared with each irrigation scheme`s crop pattern and climatic zone. In addition, results compared with irrigation schemes in similar climatic zone with similar crop pattern. In conclusion, it was determined that crop pattern is the most effective factor to success of irrigation schemes.
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