A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges

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dc.creatorLankford, B.A.
dc.creatorClosas, Alvar
dc.creatorDalton, J.
dc.creatorGunn, E.L.
dc.creatorHess, T.
dc.creatorKnox, J.W.
dc.creatorKooij, S. van der
dc.creatorLautze, Jonathan F.
dc.creatorMolden, Davd
dc.creatorOrr, S.
dc.creatorPittock, J.
dc.creatorRichter, B.
dc.creatorRiddell, P.J.
dc.creatorScott, C.A.
dc.creatorVenot, Jean-Philippe
dc.creatorVos, J.
dc.creatorZwarteveen, M.
dc.date2020-11
dc.date2020-11-13T12:43:27Z
dc.date2020-11-13T12:43:27Z
dc.date.accessioned2026-06-27T18:33:38Z
dc.descriptionAn effective placement of irrigation efficiency in water management will contribute towards meeting the pre-eminent global water challenges of our time such as addressing water scarcity, boosting crop water productivity and reconciling competing water needs between sectors. However, although irrigation efficiency may appear to be a simple measure of performance and imply dramatic positive benefits, it is not straightforward to understand, measure or apply. For example, hydrological understanding that irrigation losses recycle back to surface and groundwater in river basins attempts to account for scale, but this generalisation cannot be readily translated from one location to another or be considered neutral for farmers sharing local irrigation networks. Because irrigation efficiency (IE) motives, measures, effects and technologies play out at different scales for different people, organisations and purposes, and losses differ from place to place and over time, IE is a contested term, highly changeable and subjective. This makes generalisations for science, management and policy difficult. Accordingly, we propose new definitions for IE and irrigation hydrology and introduce a framework, termed an ‘irrigation efficiency matrix’, comprising five spatial scales and ten dimensions to understand and critique the promises, pitfalls and paradoxes of IE and to unlock its utility for addressing contemporary water challenges.
dc.identifierhttps://hdl.handle.net/10568/110154
dc.identifier.urihttp://hdl.handle.net/123456789/159421
dc.languageen
dc.publisherElsevier
dc.rightsOpen Access
dc.sourceLankford, B.; Closas, A.; Dalton, J.; Gunn, E. L.; Hess, T.; Knox, J. W.; van der Kooij, S.; Lautze, Jonathan; Molden, D.; Orr, S.; Pittock, J.; Richter, B.; Riddell, P. J.; Scott, C. A.; Venot, J.-P.; Vos, J.; Zwarteveen, M. 2020. A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges. Global Environmental Change, 65:102182. [doi: 10.1016/j.gloenvcha.2020.102182]
dc.subjectirrigation efficiency
dc.subjectwater management
dc.subjectframeworks
dc.subjectpolicies
dc.subjectwater allocation
dc.subjectirrigation systems
dc.subjectwater scarcity
dc.subjectsustainable development goals
dc.subjecthydrology
dc.subjecttechnology
dc.subjectriver basins
dc.subjectcanals
dc.subjectwater use
dc.subjectwater loss
dc.subjectstakeholders
dc.subjectfarmers
dc.titleA scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges
dc.typeJournal Article

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Instituto Internacional para el Manejo del Agua (IWMI)