NUMERICAL SIMULATION OF WATER POLICIES IN MIDDLE NILE DELTA

Abstract

In this thesis, the SIWARE model has been used successfully to simulate the actual irrigation, agriculture and drainage conditions of Middle Delta region during year 1991. Also, the regional water and salt balances for Middle Delta region, based on data of year 1991, have been analyzed. Then, three water policies have been carried out. The Nile water supply reduction policy is-to save considerable quantities of the Nile water'at' the .Delta barrages to irrigate new reclamation'projects·in the"Delta fringes. Besides, studying the effects of water'shortage condition. The present situation of the water availability for the different purposes in EGYPT is critical. So that, the future prospectives are alarming as a result of the rapidly increasing water requirements, while the water resources are. limited. The water use must be subjected to strict rationalization strategies. The numerical simulation model SIWARE had been calibrated and validated by the Drainage Research Institute of the National Water Research Center over the three Nile Delta regions during the period (1985-1990). The SIWARE is a powerful and a predictive tool for analyzing different water policies on regional scale. In other words, the SIWARE simulates and predicts short and long term effects of changes in: water supply, cropping pattern, drainage water quantity and salinity, Delta regions. irrigation processes, ... etc, in the Nile