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
Water for the World: Operating and Maintaining a Biogas System
U.S. Agency for International Development
A biogas system is a means of digesting animal manure anaerobically to produce methane gas which is burned to provide heat or light. This technical note describes how to operating and maintain a biogas system.Read more
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United StatesNorth AmericaO&M Costs in Irrigation: Reappearing Government and Farmer Responsibilities and Rights
U.S. Agency for International Development
The amount of money governments spend on irrigation development continues to be a matter of major policy concern, the more so as "the fiscal crisis" constraints governments not only in the developing world but in the U.S. as well. A discussion of the state of the art in this policy area...Read more
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United StatesNorth AmericaEffect of Incorporating Sigmoid Selection on Optimums'. Mesh Size Estimation for the Samar Sea Multispecies Trawl Fishery
U.S. Agency for International Development
The evaluation of optimus mesh size for multispecies trawl fisheries relies primarily on the aggregation of individual yield-per-recruit response surfaces. The analytic model expression incorporated in these procedures assumes knife-edge selection. The present study examines the effect of replacing...Read more
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United StatesNorth AmericaProgram Assistance Initial Proposal (PAIP) for the South Pacific Fisheries Access Support Program
U.S. Agency for International Development
A program assistance initial proposal for the South Pacific Fisheries Access Support Program, a program with objectives to secure fishing rights for U.S. boats and by providing additional resources to the South Pacific region for non-military uses.Read more
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United StatesNorth AmericaEnvironmental Impact Assessment Technical Review Guidelines for the Energy Sector
U.S. Environmental Protection AgencyU.S. Agency for International Development
The guidelines for energy aim to strengthen Environmental Impact Assessment of proposed projects. The guidelines help users identify, avoid and mitigate potential adverse impacts and increase potential benefits.Read more
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Latin America and the CaribbeanWater Harvesting/Aquaculture Project (WHAP): Final Evaluation Report
U.S. Agency for International Development
This evaluation was conducted primarily for the information of WHAP participants: Auburn University, CARE, Catholic Relief Services, Church World Service, Heifer Project International,
Lutheran World Relief, and Save the Children. The results of this evaluation are also expected to provide general...Read more
Coastal Resources Management Project
U.S. Agency for International Development
Experience in developed nations has shown that integrated coastal resources management (CRM) programs can be effective means of understanding the causes and linkages among problems such as these, and forming institutions to help resolve them. In the United States, CRM projects have been initiated...Read more
Irrigation and Human Welfare: a Workshop Report
U.S. Agency for International Development
The three specific objectives of the workshop were: (1) to examine ways in which concerns about complex relationships between water and human welfare could be integrated in the planning, design, operation and evaluation of irrigation and related water supply and sanitation projects; (2) to identify...Read more
Optimum Control of Irrigation Water Application
U.S. Agency for International Development
The problem of controlling soil water within the root zone of irrigated crops to minimize the expected loss is examined. Control is obtained by the amount and timing of irrigations to replenish the soil water reservoir depleted by the crop's water consumption. Actual evapotranspiration rates...Read more
Comparison of Photovoltaic Pumps With Wind, Diesel, Animal and Human Pumping Systems for Irrigation
U.S. Agency for International Development
A global project to assess the viability of solar pumping was undertaken by IT Power/Halcrow for the UNDP/world Bank in the period 1979 to 1983. One of the principal objectives of the second phase of the work (1981-1983) was to examine in detail the economic viability of solar pumps, compared with...Read more
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Sub-Saharan AfricaDon't see what you're looking for? You can search USWP member sites, request a resource, or contact the USWP.