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University of London (2000)

Water stress : some symptoms and causes ; a case study of Ta’iz, Yemen.

Handley, Christopher David

Titre : Water stress : some symptoms and causes ; a case study of Ta’iz, Yemen.

Auteur : Handley, Christopher David.

Université de soutenance : University of London

Grade : Doctor of Philosophy (Ph.D.) : 2000

Résumé
A case study of the extreme water crisis in the city of Ta’iz, Yemen, was used to test the hypothesis that an integrated, interdisciplinary approach to water use is needed if determinants of allocation are to be understood and sustainable measures introduced. The following aspects were also examined : (1) the importance of demand management ; (2) the role of adaptive capacity, particularly social ; (3) economic and political factors ; (4) the contribution of plural legal and institutional frameworks ; (5) the significance of virtual water and population growth ; and (6) the potential for sustainable development. At the peak of the crisis (1995), the main aquifer supplying the city stopped flowing and water supply declined to deliveries of less than once every 40 days. It is shown how rapid population growth of the city (8%), stagnating food production, and industrial pollution coincide with extreme vulnerability due to hydroclimatic constraints. As with many Yemeni urban areas, an environmental time bomb has been set off. Even the "reversible impacts" may, in reality, be irreversible due to the lack of economic capacity and political will. It is estimated that in 2013, at best only 30 l/capita/day could be brought to Ta’iz if all irrigation were to cease. Supply alternatives such as desalinization and recycling are too expensive or unacceptable on religious grounds. KEYWORDS : TROPAG | water resources | arid zones | resource depletion | water management | urban areas | water supply | food security | pollution | Middle East | Yemen | Ta’izz.

Annonce : EThOS (UK)

Présentation (CABI)

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