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Accueil du site → Doctorat → États-Unis → 1987 → Irrigation efficiency and production energy efficiency of traditional and modern farms in the Al-Hassa Oasis, Saudi Arabia

Oklahoma University (1987)

Irrigation efficiency and production energy efficiency of traditional and modern farms in the Al-Hassa Oasis, Saudi Arabia

Al-Taher, A.A.

Titre : Irrigation efficiency and production energy efficiency of traditional and modern farms in the Al-Hassa Oasis, Saudi Arabia

Auteur : Al-Taher, A.A.

Université de soutenance : Oklahoma University

Grade : Doctor of Philosophy (PhD) 1987

Résumé
The Al-Hassa Oasis is located in eastern Saudi Arabia. The dry tropical climate requires irrigation throughout the year for agricultural crop production, which currently faces the following problems : declining groundwater tables, scarcity of surface water, high soil salinity in substantial parts of the districts serviced by the irrigation authority, low efficiency of irrigation water use in fields, rising costs for production inputs, and declining crop yields. The objectives of this research are to assess field irrigation efficiency under traditional, intermediate, and modern irrigation methods, to calculate energy efficiency under transitional, intermediate, and modern soil management practices, and to determine the relationship between irrigation efficiency and production energy efficiency within the current agricultural scenario of the Oasis. Analyses regarding the relationship between (1) food energy output and irrigation energy input, non-irrigation energy input and irrigation efficiency, (2) irrigation efficiency and total cultural energy input, (3) irrigation efficiency and irrigation energy input, (4) food energy output and cultural energy input, and (5) production energy efficiency and irrigation efficiency under tomatoes, cucumber, potatoes, other vegetables, alfalfa, wheat, dates, and rice indicate that the effect varies from one crop to another.

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Page publiée le 4 avril 2018