Issues in the Efficient Use of Surface and Groundwater in Irrigation PDF Download
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Author: Gerald T. O'Mara
Publisher:
ISBN:
Category : Irrigation efficiency
Languages : en
Pages : 126
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Book Description
The efficient use of water resources where both ground and surface water are used may require special policies to rationalize the interaction among pumping by farmers, canal diversions by irrigation system managers, and the physical response of the stream aquifer system. Significant gains in output are possible from more efficient conjunctive use. However, these potential gains are not costless because their realization requires changes in irrigation institutions, methods of irrigation management, and often accompanying investments in drainage facilities. Three broad approaches to the problem have been defined: (i) assignment of well-defined, transferrable legal property rights; (ii) imposition of corrective taxes or subsidies; and (iii) centralized control over the entire resource. The feasibility and institutional implications of these approaches are discussed and several case histories of actual policy responses to the social costs incurred by conjunctive use are reviewed. The prognosis is hopeful, but better information systems, more skilled managers, and institutional reforms are needed.
Author: Gerald T. O'Mara
Publisher:
ISBN:
Category : Irrigation efficiency
Languages : en
Pages : 126
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Book Description
The efficient use of water resources where both ground and surface water are used may require special policies to rationalize the interaction among pumping by farmers, canal diversions by irrigation system managers, and the physical response of the stream aquifer system. Significant gains in output are possible from more efficient conjunctive use. However, these potential gains are not costless because their realization requires changes in irrigation institutions, methods of irrigation management, and often accompanying investments in drainage facilities. Three broad approaches to the problem have been defined: (i) assignment of well-defined, transferrable legal property rights; (ii) imposition of corrective taxes or subsidies; and (iii) centralized control over the entire resource. The feasibility and institutional implications of these approaches are discussed and several case histories of actual policy responses to the social costs incurred by conjunctive use are reviewed. The prognosis is hopeful, but better information systems, more skilled managers, and institutional reforms are needed.
Author: Academy of Sciences of the Islamic Republic of Iran
Publisher: National Academies Press
ISBN: 0309181194
Category : Science
Languages : en
Pages : 292
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Book Description
In December 2002, a group of specialists on water resources from the United States and Iran met in Tunis, Tunisia, for an interacademy workshop on water resources management, conservation, and recycling. This was the fourth interacademy workshop on a variety of topics held in 2002, the first year of such workshops. Tunis was selected as the location for the workshop because the Tunisian experience in addressing water conservation issues was of interest to the participants from both the United States and Iran. This report includes the agenda for the workshop, all of the papers that were presented, and the list of site visits.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 48
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Book Description
Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 808
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Book Description
Author: Daniel Renault
Publisher: IWMI
ISBN: 9290903724
Category : Irrigation
Languages : en
Pages : 31
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Book Description
This report presents a methodology for identifying the main features (constraints and opportunities) of gravity-fed irrigation systems, which influence management and operation of the system for the purpose of water delivery. It presents the development of a generic for improving irrigation system operations. A case study of 64 irrigation systems in Sri Lanka is presented illustrating the practical application of the proposed typology.
Author: Jehangir, W. A
Publisher: IWMI
ISBN: 9290904925
Category : Groundwater
Languages : en
Pages : 213
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Book Description
Institutional development / Farm income / Water scarcity / GIS / Remote sensing / Salinity control / Pumping / Rain / Water quality / Supplementary irrigation / Environmental sustainability / Sustainable agriculture / Water table / Water balance / Water requirements / Crop production / Models / Groundwater / Surface water / Conjunctive use / Water resource management
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309175003
Category : Science
Languages : en
Pages : 203
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Book Description
Because water in the United State has not been traded in markets, there is no meaningful estimate of what it would cost if it were traded. But failing to establish ground water's valueâ€"for in situ uses such as sustaining wetlands as well as for extractive uses such as agricultureâ€"will lead to continued overuse and degradation of the nation's aquifers. In Valuing Ground Water an interdisciplinary committee integrates the latest economic, legal, and physical knowledge about ground water and methods for valuing this resource, making it comprehensible to decision-makers involved in Superfund cleanup efforts, local wellhead protection programs, water allocation, and other water-related management issues. Using the concept of total economic value, this volume provides a framework for calculating the economic value of ground water and evaluating tradeoffs between competing uses of it. Included are seven case studies where ground-water valuation has been or could be used in decisionmaking. The committee examines trends in ground-water management, factors that contribute to its value, and issues surrounding ground-water allocation and legal rights to its use. The book discusses economic valuation of natural resources and reviews several valuation methods. Presenting conclusions, recommendations, and research priorities, Valuing Ground Water will be of interest to those concerned about ground-water issues: policymakers, regulators, economists, attorneys, researchers, resource managers, and environmental advocates.
Author: Gerald T. O'Mara
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 222
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Book Description
This collection of papers explores the theory, history, economics, evaluation, and applications of the conjunctive use of surface and groundwater. Ways to use water efficiency for irrigation are analyzed, and their feasibility and institutional implications are examined in case histories of California, Pakistan, and China. Particular attention is paid to the concept of externalities - costs borne by society or by persons other than the individual whose actions occasioned them. In the context of irrigated agriculture, such diseconomies impede the efficient allocation of water, and thus output is less than it could be. The authors consider a host of remedies: institutional arrangements, methods of irrigation management, and investment in irrigation and drainage facilities, as well as plans for involving pricing, taxation, and regulation. The demanding informational and managerial requirements of efficient conjunctive use are also addressed in chapters on the use of sophisticated analytical methods to measure and model the efficiency of irrigation systems.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264281703
Category :
Languages : en
Pages : 138
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Book Description
The report, building on a policy dialogue with a range of stakeholders in Korea, analyses how economic policy instruments under the responsibility of the Korean Ministry of Land, Infrastructure and Transport can be adjusted to contribute to water policy objectives.
Author:
Publisher: CIMMYT
ISBN: 8188572004
Category : Agriculture
Languages : en
Pages : 320
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Book Description
