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DRAINAGE EXPERIENCES IN ARID AND SEMI-ARID REGIONS EXPÉRIENCES DE DRAINAGE DANS RÉGIONS ARIDES ET SEMI-ARIDES DES

By Safwat Abdel-dayem

Abstract

The state of development of drainage in arid and semi-arid countries is lagging far behind the development of irrigation. This leaves the worlds ’ irrigated agriculture at high risk of losing productive lands to waterlogging and salinization. As development of new irrigation projects will not likely happen any more as in the sixties and seventies, drainage of existing irrigated lands can contribute to food security both by increasing the productivity and avoiding any further decline in the yield due rising water tables and/or salinity. Serious development of irrigated agriculture on a sustainable basis needs to address the drainage needs within a sound policy, institutional, technical, economic and social framework. RESUME ET CONCLUSIONS L'état du développement du drainage dans les pays arides et semi-arides est peu avancé en comparaison avec celui de l'irrigation. De ce fait, l'agriculture mondiale irriguée risque de perdre une grande quantitée de terres productives pour cause de l’engorgement des sols et la salinisation. Comme le développement de nouveaux projets d'irrigation ne s

Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.198.4610
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