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

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dc.contributor.authorLankford, Bruce
dc.contributor.authorClosas, Alvar
dc.contributor.authorDalton, James
dc.contributor.authorLópez Gunn, Elena
dc.contributor.authorHess, Tim
dc.contributor.authorKnox, Jerry W.
dc.contributor.authorvan der Kooij, Saskia
dc.contributor.authorLautze, Jonathan
dc.contributor.authorMolden, David
dc.contributor.authorOrr, Stuart
dc.contributor.authorPittock, Jamie
dc.contributor.authorRichter, Brian
dc.contributor.authorRiddell, Philip J.
dc.contributor.authorScott, Christopher A.
dc.contributor.authorVenot, Jean-philippe
dc.contributor.authorVos, Jeroen
dc.contributor.authorZwarteveen, Margreet
dc.date.accessioned2020-10-29T16:06:39Z
dc.date.available2020-10-29T16:06:39Z
dc.date.freetoread2020-10-29
dc.date.issued2020-10-20
dc.description.abstractAn 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.en_UK
dc.identifier.citationLankford B, Closas A, Dalton J, et al., (2020) A scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challenges. Global Environmental Change, Volume 65, November 2020, Article number 102182en_UK
dc.identifier.cris28376150
dc.identifier.issn0959-3780
dc.identifier.urihttps://doi.org/10.1016/j.gloenvcha.2020.102182
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/15934
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectWater allocationen_UK
dc.subjectIrrigationen_UK
dc.subjectIrrigation efficiencyen_UK
dc.subjectRiver basinsen_UK
dc.subjectScaleen_UK
dc.subjectSDGsen_UK
dc.titleA scale-based framework to understand the promises, pitfalls and paradoxes of irrigation efficiency to meet major water challengesen_UK
dc.typeArticleen_UK

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