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close this book Using water efficiently - Technological options
View the document Abstract
View the document Acknowledgements
View the document Foreword
View the document Introduction
View the document Sectoral water allocation in countries and regions
Open this folder and view contents Water use efficiency
Open this folder and view contents Measures to improve efficiency: Technological options
Open this folder and view contents River basin management: When is low efficiency appropriate ?
View the document Conclusions and policy recommendations
View the document References
View the document Annex I - Sectoral water allocation by country (145 countries)
View the document Annex II - Implications of increasing water use efficiency in a basin (a numeric example)
View the document Distributors of world bank publications


The paper briefly examines sectoral water allocation in various countries and regions. It discusses and clarifies some of the definitions of water use efficiencies under various contexts, presents estimates of sectoral efficiencies in irrigation and domestic/industrial water use, and provides intensive country examples. By highlighting factors affecting water use efficiency, the paper reviews the technological and managerial options to improve water use efficiency, presents cost comparisons, and management implications of alternatives. The paper finally discusses the effectiveness of increasing water use efficiency from a river basin point of view, and presents conclusions and policy recommendations.