Productivity and Efficiency
According to the U.S. Environmental Protection Agency, water efficiency is the smart use of our water resources through water-saving technologies and simple steps. Using water efficiently will help ensure reliable water supplies today and for future generations. Topics addressed in this theme provide insights, lessons, and guidance on how diverse stakeholders are working to improve water management and reduce water use.
Productivity and Efficiency Resources
Procedure for Evaluating the Cost of Lifting Water for Irrigation in Egypt
Published:
August 1, 1984U.S. Agency for International DevelopmentColorado State University
An analytical model for assessing alternative water lifting systems in Egypt, designed for use by policymakers, is presented. The procedure computes the cost of lifting water from tertiary delivery canals to farmers' fields on the basis of a combination of 23 variables: economic factors,...Read more
Regional focus:
Egypt, Arab Rep.Middle East and North AfricaRelation Between Irrigation Water Management and High Water Tables in Egypt
Published:
July 1, 1984U.S. Agency for International DevelopmentColorado State University
High water table levels presenting hazards to crop growth were measured at field sites in upper, middle, and lower Egypt. Water table contribution to evapotranspiration was significant at each site. A water balance model of the water table aquifer was used to predict the effect of various...Read more
Regional focus:
Egypt, Arab Rep.Middle East and North AfricaOptimal Design of Border Irrigation Systems
Published:
June 1, 1984U.S. Agency for International DevelopmentColorado State University
A procedure combining simulation and mathematical programming to derive an optimal irrigation system design given scarce resources is described. A hydraulics simulation model for surface irrigation was used to develop relationships between water requirement efficiency and the system design...Read more
Regional focus:
Egypt, Arab Rep.Middle East and North AfricaConsiderations of Various. Soil Properties for the Irrigation Management of Vertisols
Published:
May 1, 1984U.S. Agency for International DevelopmentColorado State University
Most of the irrigated soils of the Nile River Delta are classified by the U.S. Soil Taxonomy as vertisols. For proper irrigation management, the extensive cracking exhibited by these soils upon drying requires an understanding of how crack formations affect, among other factors, infiltration,...Read more
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Egypt, Arab Rep.Middle East and North AfricaInfluence of Farm Irrigation System Design and Precision Land Leveling on Irrigation Efficiency and Irrigation Water Management
Published:
May 1, 1984U.S. Agency for International DevelopmentColorado State University
Presented herein are findings from studies of conventional farm irrigation systems at three locations in Egypt, along with the results of field trials which assessed land-leveling and system design improvements. The typical irrigation method in Egypt involves surface gravity flooding of small flat...Read more
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Egypt, Arab Rep.Middle East and North AfricaA Technical and Economic Analysis of Low Lift Irrigation Pumping in Egypt
Published:
May 1, 1984U.S. Agency for International DevelopmentColorado State University
The need for small, efficient, low-lift pumping devices is being recognized worldwide. Many developing countries need such pumps to lift irrigation surface water 0.5 to 3 meters. This paper analyzes the technical and economic characteristics of low-lift pumps. Water wheels and both portable and...Read more
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Egypt, Arab Rep.Middle East and North AfricaHydraulic Design of a Canal System for Gravity Irrigation
Published:
April 1, 1984U.S. Agency for International DevelopmentColorado State University
Irrigation by gravity from a water delivery system where the difference in elevation between the canal's source and the fields is small requires careful use of the limited head available. Drop structures normally used to control flow are not used in order to conserve head. Instead, a desired...Read more
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Egypt, Arab Rep.Middle East and North AfricaImproving Egypt's Irrigation System in the Old Lands: Findings of the Egypt Water Use and Management Project; Final Report
Published:
March 1, 1984U.S. Agency for International DevelopmentColorado State University
The Egyptian Water Use and Management Project conducted an applied research and extension program with small farmers at three pilot sites (El-Mansuriya, Abu Raya, and Abyuha) to develop improved on-farm water management and delivery systems. Project findings are presented in this final report...Read more
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Egypt, Arab Rep.Middle East and North AfricaSynthesis of Design Operation and Management of Surface Irrigation Conveyance Systems
Published:
January 1, 1984U.S. Agency for International DevelopmentColorado State University
A theory for the design of conveyance systems, synthesizing with it the operation and management and set in an interdisciplinary mode is proposed. The theory involving eleven steps is required in the development of solutions for six basic problems hitherto inadequately addressed. These solutions...Read more
Regional focus:
Egypt, Arab Rep.Middle East and North AfricaIrrigation System Improvement By Simulation and Optimization, Pt. 1: Theory
Published:
January 1, 1984U.S. Agency for International DevelopmentColorado State University
A theory to evaluate improvement alternatives for an irrigation system by way of simulation and optimization is presented. A mathematical simulation model combining existing models of conveyance, application, and water use subsystems was developed and verified using available field data from...Read more
Regional focus:
Egypt, Arab Rep.Middle East and North AfricaDon't see what you're looking for? You can search USWP member sites, request a resource, or contact the USWP.