Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Wadi Elmegenin artificial ground water recharge

Auteur : Matoug, Mohamed Ibrahim

Université de soutenance : University of Southern California

Grade : Master of Science (MS) 1975

Résumé
The Wadi-Elmegenin Dam was built in 19 7 0 to control the flooding caused by the intense winter storms. As a result of building the dam, the natural infiltrated water was stopped from feeding the ground’water reservoir down­stream. This cut-off was estimated to be approximately two million cubic meters annually. - In this thesis, different recharge methods are dis­cussed in detail. The natural stream-bed basin method is chosen as the most suitable. Water will be carried from the reservoir outlet in a closed conduit to the irrigation area where about 34% of the annual runoff will be used to irrigate 4 5 0 acres of land. The extra water, about 3 3%, will flow through the wadi bed and will be sent to a selected recharge area near Ben Ghishir. The advantage of this method is that during extremely dry years the water can be used solely for irrigation. In wet years, when the average runoff is more than that re­quired for the irrigated area, the water will be diverted to the recharge system.

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