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Istituto Agronomico Mediterraneo di Bari (IAMB) 1998

Étude de possibilité de reconversion de l’irrigation par aspersion à l’irrigation gravitaire basse pression dans le périmètre du Gharb (Maroc)

LARBI Asouileh Mohammed

Titre : Étude de possibilité de reconversion de l’irrigation par aspersion à l’irrigation gravitaire basse pression dans le périmètre du Gharb (Maroc)

Auteur : LARBI Asouileh Mohammed

Etablissement de soutenance : Istituto Agronomico Mediterraneo di Bari (IAMB) - Centre international de hautes études agronomiques méditerranéennes (CIHEAM)

Grade : Master of Science : Land and water resource management : irrigated agriculture 1998

Résumé
The excess use of energy by pump station in the Moroccan’s hydro agricultural projects is still generating the enormous constraints for the public budget, so this case of -study analyze the technical and economical feasibility of conversion the sprinkler irrigation system to the·low pressurized pipelines for surface irrigation. It was tested through a case· study of GHARB irrigation scheme in the Nord of Morocco. To assess the performance of sprinkler irrigation system, the diagnosis of the operation system was shown that water consumption is similar in sprinkler as well as in surface irrigation, moreover, the energy cost is tree time more important and the global efficiency is near of 70%. In addition to that the whole equipment in this area is affected, as matter of fact, 20% of hydrants was damaged, the majority of flow limiting device and pressure regulating device were removed leading so to the great hydraulic-disturbance on the network as well as on pump station, at the same time, the irrigation practice at the farm level was completely no adapted, so it show a net refusal of this model on this area.

Mots clés : conversion, sprinkler irrigation, feasibility, surface irrigation Gharb

Document source : page 72

Page publiée le 30 septembre 2018