Your search found 3 records
1 Bird, J. D.; Gillott, P. W. K.. 1992. A quantitative review of adequacy and equity indicators for irrigation system distribution. Wallingford, Oxfordshire, UK: Hydraulics Research Ltd. 14p.
(Location: IWMI-HQ Call no: P 2627 Record No: H011904)
International Conference on Advances in Planning, Design and Management of Irrigation Systems as Related to Sustainable Land Use, Leuven, Belgium, 14-17 September 1992.
2 Gillott, P. W. K.; Bird, J. D. 1993. Choosing equity indicators: theoretical and empirical considerations. In HR Wallingford. Maintenance and operation of irrigation/drainage schemes for improved performance: papers presented to the Asian Regional Symposium held in Beijing, People's Republic of China, 24-27 May 1993. Wallingford, Oxfordshire, UK: HR Wallingford. pp.3:69-79.
(Location: IWMI HQ Call no: 631.7.1 G570 MAI Record No: H012682)
(0.49 MB)
Various indicators of equity have been suggested for the measurement of inequality in supplies of water within irrigation schemes. Five of these are reviewed in terms of their suitability as indicators of performance. Points considered are the extent to which an indicator behaves in a way in which reflects an intuitive idea of inequality; simplicity of definition and interpretation; and actual behavior for two schemes in Asia. Abernethy's modified interquartile ratio is attractively simple, but is insensitive to a large part of its input data. Theil's measure is difficult to interpret, but should be considered if analysis of the contribution of different parts of the scheme is thought desirable. The other three measures considered are Gini's coefficient, Christiansen's coefficient and the coefficient of variation. These are all defined in a fairly simple way, and reasonably well behaved in their response to empirical data. In theoretical terms, the coefficient of variation appears to have the edge.
3 Bird, J. D.; Gillott, P. W. K.. 1992. A quantitative review of adequacy and equity indicators for irrigation system distribution. In Feyen, J.; Mwendera, E.; Badji, M. (Eds.), Advances in planning, design and management of irrigation systems as related to sustainable land use: Proceedings of an International Conference organized by the Center for Irrigation Engineering of the Katholieke Universiteit Leuven in cooperation with the European Committee for Water Resources Management, Leuven, Belgium, 14-17 September 1992. Vol. 3. Leuven, Belgium: Center for Irrigation Engineering. pp.901-914.
Irrigation systems ; Assessment ; Performance indexes ; Water supply ; Rain ; Water requirements ; Equity
(Location: IWMI-HQ Call no: 631.7.1 G000 FEY Record No: H014471)
(1.28 MB)
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