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Abstract
Fast growing of population in Egypt faces agriculture with an increasing demand for its production. The Egyptian water resources is fixed according to the international agreement of 1959. increasing agricultural production means enhancing the productivity of the cultivated lands and/or bringing new lands to be cultivated. So that, it is a must to maximize irrigation efficiency for water conserving. Ministry of water resources and irrigation (MWRI) has focused on the importance of finding different approaches for increasing water use efficiency and agricultural production.
The objectives of the research are to evaluate the performance of the irrigation distributary systems in the old lands and introduce modernization for the system operation in order to deliver an adequate and dependable supply of water in an equitable and efficient manner to users served by the system.
To carry out the performance analysis, El-Qahwagi canal and Dakalt canal command areas were selected to collect the required data for evaluation analysis. El-Qahwagi canal is operated under continuous flow, while Dakalt canal is operated under rotational flow. A lot of data were collected on the two chosen canals about daily water levels, cross sections, cropping patterns and other relevant data. Performance measures are adequacy, efficiency, dependability and equity. The contributions of management and structural characteristics of the system were discussed for each measure. From the analysis, it is deduced that:
1-for the tradition system,
Adequacy measures during summer months are poor due to management contributions, but there is no structural limitation to deliver adequate delivery. During winter months, the delivery is adequate.