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Limitations of water-control technology

Lookup NU author(s): John Gowing

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Abstract

Control devices (at widely varying levels of sophistication) are provided in all irrigation schemes in order to facilitate management of water distribution. Yet numerous reports published in recent years clearly show that there is widespread disparity between anticipated and actual water control, which is generally reflected in low water-use efficiency and poor economic performance. Unless there is an adequate control over the water flows to, and within, the system, how can there be a close match between supply and demand? This poor performance has been attributed by many authors to deficiencies in management and farmers' active circumvention of management control over water distribution. Inadequate design has sometimes been cited as a contributory factor, but the relationship between design and manageability has received too little attention from engineers. It is essential that designers give explicit consideration to water-control objectives and to anticipated performance of the system under real operating conditions.

Publication metadata

Author(s): Gowing J

Publication type: Article

Publication status: Published

Journal: Agricultural Water Management

Year: 1999

Volume: 40

Issue: 1

Pages: 95-99

Print publication date: 01/03/1999

ISSN (print): 0378-3774

ISSN (electronic): 1873-2283

Publisher: Elsevier Science B.V.

URL: http://dx.doi.org/10.1016/S0378-3774(98)00110-3

DOI: 10.1016/S0378-3774(98)00110-3

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