THE IMPACT OF CANALS REHABILITATION AND CONTINUOUS FLOW SYSTEM ON APPLICATION OF MODERN IRRIGATION SYSTEMS IN EGYPT

With The intent of Ministry of Water Resource and Irrigation in Egypt to apply the modern irrigation system in the old land, it is important to understand the impact of canals rehabilitation and water distribution system on such application. The study investigated such impact through studying two canals, the first canal (Branch # 11) in West Delta, and the second canal (Dakalt canal) in Middle Delta. The study discussed the accurate application of the continuous flow based on the experiences of the developed countries, and it used the simulation model (HEC-RAS) to test the ability of both canals to convey the required water under different water abstraction scenarios. These scenarios were irrigating throughout the whole time, through the whole days of Onperiods. Both systems worked properly for the first two scenarios, while there was aproblem in the third scenario. The discussion highlighted that accurate application of the continuous flow requires enhancing the performance of the irrigation network, besides precise calculation of water requirements. The study conduct that adapting water distribution system before applying modern irrigation system is essential to avoid the failure of such application.