Bienvenu

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Résumé en Anglais

The Rural Development Project in Matam (PDRM) initiated by SAED in a takeoff of local economic is a major player for development particularly in the fight against food insecurity. To achieve its objectives, the PDRM is based on several inputs including the restoration of irrigation schemes, one of the key drivers of their policy of improving living conditions of rural populations.
            This orientation requires the adaptation of irrigation systems which are made to fit the socio-economic areas of intervention through optimization and control of their implementation which are the only pledges to reduce and minimize investment costs. To do this, an alternative to the types of land use or improvement thereof shall be practiced.
            The study of the “California system”, little known in Senegal and a comparison to the techno-economic gravity system more expanding in this country and used in areas of intervention, can help better guide the choice of type of irrigation schemes.
            This dissertation that concerns this frame and focuses on a study of an agricultural area of 500ha revolves around a bibliography on the Californian system (to determine the specific characteristics), a presentation of the project area and a measurement of the different design parameters of the irrigation Californian.
            At the end of the study, the data obtained have been compared to techno-economic systems of California and gravity in the context of the agricultural area of Matam following the investment. Also, regarding the operation of the California system, a comparison of the cost of water has been conducted using the energy source (power station and fixed power group).
            The results show that the development cost per hectare of California system is about 0.5 times smaller than the gravity system. Concerning the operation of the first, the price of water with the electrical group is 2.7 times larger.

Keywords: Irrigated agriculture, irrigation Californian system, gravity irrigation, optimization.

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