Fait partie de [OMB47]

2004 - 328 p.

Water management strategies to combat drought in the semiarid regions

Ragab R., Hamdy A.

In this paper, three examples of solutions to combat drought were presented. First example was on how to save water for household use in residential areas. The example shows some house roofs can catch up to 90 percent of the rainfall. The amount is quite significant to meet most of average house requirements. The second example was on the rainfall harvesting on small mountain lakes/reservoirs in the coastal areas: how to design a surface reservoir to a certain storage capacity at acceptable risk level and how to predict the runoff volume that could be generated from a given storm event. The third example was on the use of saline / brackish water for irrigating field crops. The capability of the SALTMED model as a management tool was also illustrated. These three examples showed that the non-conventional water resources can be used if a proper integrated water management was adopted. These resources are valuable assets in drought prone areas and offer alternatives to fresh water when in short supply.

Mots-clés    

EAU D'IRRIGATION, ECONOMIE DE L'EAU, GESTION DES EAUX, SECHERESSE, ZONE SEMI-ARIDE

Citer cet article    

Ragab R., Hamdy A. Water management strategies to combat drought in the semiarid regions. In : Hamdy A. (ed.), Trisorio-Liuzzi G. (ed.). Water management for drought mitigation in the Mediterranean. Bari : CIHEAM, 2004. p. 47-112. (Options Méditerranéennes : Série B. Etudes et Recherches; n. 47). Special Session on 'Water Management for Drought Mitigation in the Mediterranean' at the Regional Conference on Arab Water 2004, 2004/04/12-16, Cairo (Egypt). http://om.ciheam.org/om/pdf/b47/05002266.pdf