Fictions, fractions, factorials and fractures; on the framing of irrigation efficiency

Bruce Lankford

Agricultural Water Management, 2012, vol. 108, issue C, 27-38

Abstract: Irrigation efficiency, as a complex and useful measure of irrigation performance, is in a vulnerable scientific position. Knowledge gaps feed through to naïve views of a sector held to be highly inefficient, ‘wasting’ freshwater which could be allocated to other purposes. Confusions and lack of evidence allow room for policy errors – for example the notion that micro-drip technology should replace surface canal irrigation – and underpin an incomplete scientific debate over whether recoverable losses matter resulting in a dismissing of classical irrigation efficiency. Thus with regards to the water challenge of how and why to improve efficiency, society finds itself facing multiple risks; errors in terminology employed, poor engagement with local users on the issue; inappropriate computational methods and a lack of well-executed analyses to challenge commonplace views. In addition, the nuances of an ‘efficiency and productivity’ debate seem not to feed through to interest groups; engineers continue to think in classical terms when not appropriate; incomplete science does little to inform serious policy-making; and scientists seem unable to agree on methods of performance assessment. This paper explores these fault-lines and tensions by taking the view that local losses and classical efficiency matter, and postulates that irrigation systems are locally individuated and have particular distributional and bifurcating properties. As a contribution to the debate, and in framing efficiency, two paradigms are discussed; ‘basin allocation irrigation efficiency’ utilising fractions and effective efficiency, and; ‘socialised localised irrigation efficiency’, utilising classical efficiency.

Keywords: Irrigation efficiency; Fractions; Irrigation; Performance; Productivity; Water allocation (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (17)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:108:y:2012:i:c:p:27-38

DOI: 10.1016/j.agwat.2011.08.010

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