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Cranfield University (2005)

Improving the performance of water delivery systems in the Dez and Moghan irrigation schemes in Iran

Hedayat, N

Titre : Improving the performance of water delivery systems in the Dez and Moghan irrigation schemes in Iran

Auteur : Hedayat, N

Université de soutenance : Cranfield University

Grade : Doctor of Philosophy (PhD) 2005

Résumé
Following recent rural reforms in Iran, which have changed the land holding regime, cropping pattern, and market system, the present canal management is no longer responsive to the new challenges of farmers in irrigation schemes such as the Dez and Moghan. This research aims to identify an appropriate canal management model for improving water delivery, using the stakeholders’ own views and understanding of the local issues. After reviewing the literature, four expert workshops were organized to identify important issues. A postal survey of 100 farmers, 50 extensionists and 50 water agency staff was then undertaken. This was then augmented by 356 semi-structured and open-ended interviews with stakeholders not covered by the survey. The majority of all three-stakeholder groups agreed that present canal management in both the schemes is not appropriate and causes various problems, but they did not agree on the causes of the problems. The majority view among the farmers and extensionists was that inequity and inflexibility, due to poor operation and maintenance (O&M) of the main and secondary canals, were the most important causes of poor water delivery. In contrast, the agency staff regarded group conflicts and environmental impacts, due to poor O&M in the tertiaries and quaternaries and poor on-farm operations, as the most important. The perceptions of the stakeholders on water delivery-related issues were similar on the two schemes. The farmers and extensionists had similar views on all issues except on water charges, where the extensionists (agreeing with the agency staff) suggested that present charges were too low to reflect the O&M costs. In contrast, the farmers thought that higher charges alone would not help, because the problems lie with poor design and the present inappropriate management system.

Présentation (EThOS)

Accès au document : Proquest Dissertations & Theses

Page publiée le 15 février 2015, mise à jour le 21 janvier 2018