Consulta: subjectFacets:"Water supply"
Registros recuperados: 53
Data/hora: 17/06/2024 16:29:44

Estrategias para el abastecimiento de agua a comunidades marginadas y urbanas.
Provedor de dados: 32
Autores: Juan Martínez, José.
Esta investigación tuvo como objetivo formular estrategias y escenarios para el abastecimiento de agua para consumo humano, uso doméstico y productivo, considerando las condiciones socioculturales, económicas y modos de producción; con el propósito de identificar tecnologías que atienden las demandas actuales y futuras en materia de agua en la entidad del DF y Estado de México. Se inició con el diseño de cinco escenarios de caso: casa rural marginada, urbana, residencia, mediana industria e industrial, pero solo se transfirió la residencia y mediana industria. En el escenario de la zona residencial la integración  de captación y el tratamiento biológico de aguas residuales genera ahorros de 20.92 por ciento anual. En la mediana industria la integración de...
Palavras-chave: Actitud sustentable; Abastecimiento de agua potable; Vivienda ecológica; Attitude sustainable; Water supply; Ecological housing; Hidrociencias; Doctorado.
Ano: 2011
URL: http://hdl.handle.net/10521/601

El agua como elemento de percepción ambiental de los usuarios en San Nicolás Tlamincas, municipio de Texcoco.
Provedor de dados: 32
Autores: Durán Barrios, Juana María Antonia.
La localidad donde se realizó la investigación se ubica en la región XIII Aguas del Valle de México, donde la disponibilidad media de agua per cápita es de 143 m3 habitante-1 año-1, la más baja a nivel nacional, situación que orilló a indagar, cuál de los siguientes factores presentan fugas en el cuidado y la conservación de agua: a) en la percepción que tienen los usuarios de la cantidad; b) en el volumen de suministro en la toma domiciliaria; c) en otros problemas no detectados. La percepción de los usuarios sobre la cantidad de agua se obtuvo por encuesta y se diferenció por ejidatarios y no ejidatarios, en la ubicación de las tomas domiciliarias y fuentes de abastecimiento de la infraestructura hidráulica se utilizó Sistemas de Información Geográfica,...
Palavras-chave: Usuarios de agua potable; Percepción de la cantidad de agua; Suministro de agua; Users of drinking water; Perception of water amount; Water supply; Desarrollo Rural; Doctorado.
Ano: 2011
URL: http://hdl.handle.net/10521/617

Supporting the Shift from State Water to Community Water: Lessons from a Social Learning Approach to Designing Joint Irrigation Projects in Morocco
Provedor de dados: 7
Autores: Dionnet, Mathieu; Lisode; mathieu.dionnet@lisode.com; Bluemling, Bettina; Wageningen University; bettina.bluemling@wur.nl.
This paper focuses on the evaluation of a participatory approach aimed at supporting groups of small-scale farmers in the design of joint drip irrigation projects. Our idea was to create a sustainable social learning environment in which they could acquire adaptive knowledge about new irrigation technology and about designing and managing a joint irrigation project while at the same time improving their negotiation capacities. We developed a framework to evaluate the process as well as the outputs and outcomes of the use of our approach with four groups of smallholder farmers in the Tadla irrigation scheme in Morocco. Our findings showed that the learning environment made it possible to compensate for the knowledge differential among stakeholders and to...
Tipo: Peer-Reviewed Reports
Palavras-chave: Social learning  drip irrigation  irrigation projects; Project management  Morocco; Farmers; Water supply.
Ano: 2009

Dublin Ireland: a city addressing challenging water supply, management, and governance issues
Provedor de dados: 7
Autores: Kelly-Quinn, Mary; School of Biology &amp; Environmental Science, University College Dublin; mary.kelly-quinn@ucd.ie; Blacklocke, Sean; School of Civil, Structural &amp; Environmental Engineering, University College Dublin; sean-blacklocke@sean-blacklocke.com; Bruen, Michael; School of Civil, Structural &amp; Environmental Engineering, University College Dublin; michael.bruen@ucd.ie; Earle, Ray; International Water Association; rayearlewater@gmail.com; O'Neill, Eoin; School of Geography, Planning &amp; Environmental Policy, University College Dublin; eoin.oneill@ucd.ie; O'Sullivan, John; School of Civil, Structural &amp; Environmental Engineering, University College Dublin; jj.osullivan@ucd.ie; Purcell, Patrick; School of Civil, Structural &amp; Environmental Engineering, University College Dublin; pj.purcell@ucd.ie.
Tipo: Peer-Reviewed Reports
Palavras-chave: Demand management; Dublin; Full cost recovery; Governance; Water supply.
Ano: 2014

SDG 6 and its relationship with the world, Brazil and Embrapa.
Provedor de dados: 14
Autores: PRADO, R. B.; PARRON, L. M.; CAMPANHA, M. M.; SILVA, M. S. L. da; MATTHIENSEN, A.; LIMA, J. E. F. W.
bitstream/item/222369/1/SDG-6-cap-1-2020.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Abastecimento de Água; Qualidade da Água; Disponibilidade de Água; Water supply; Water quality.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130953

Water supply from wetlands in Tanzania
Provedor de dados: 20
Autores: Mihayo, J.M.
This paper gives a brief discussion on water supply from wetlands in Tanzania. The majordrainage basins in Tanzania are described and the status and role of the Division of WaterResearch in the monitoring of water resources and data collection from wetlands and watersources are highlighted. The role of wetlands in the hydrological cycle, and the utilisation ofwetlands as water supply sources are discussed. The need for conservation and protection ofwetlands and other water sources is outlined.
Tipo: Working Paper
Palavras-chave: Wetlands; Water supply.
Ano: 1993
URL: http://hdl.handle.net/1834/527

Taking a multiple-use approach to meeting the water needs of poor communities brings multiple benefits
Provedor de dados: 31
Autores: International Water Management Institute (IWMI); International Water and Sanitation Centre; Global Water Partnership (GWP).
This briefing was produced by International Water Management Institute (IWMI), the IRC International Water and Sanitation Centre, the Technical Committee of the Global Water Partnership (GWP) and the GWP Advisory Center at IWMI. It draws primarily on research from the Multiple Use Systems (MUS) project and the Productive Uses of Water Thematic Group (Prodwat) (see references for further reading). The brief complements Catalyzing Change, the GWP handbook for developing IWRM and water efficiency strategies and plans, and the associated policy and technical briefs. Single-use approaches to water development and management do not reflect the realities of poor people’s water use. People use domestic water supplies for activities such as irrigating backyard...
Tipo: Report
Palavras-chave: Water use; Domestic water; Irrigation water; Poverty; Water supply; Drinking water; Agricultural and Food Policy; Food Security and Poverty.
Ano: 2006
URL: http://purl.umn.edu/113060

Farmer response to rationed and uncertain irrigation supplies
Provedor de dados: 31
Autores: Perry,   Christopher J.; Narayanamurthy,   S.G.
Explores the theoretical and actual responses of farmers faced with irrigation supplies that are limited in relation to available land and labor resources, and where the actual schedule and available volume for delivery are uncertain.
Tipo: Report
Palavras-chave: Water resource management; Water use efficiency; Evapotranspiration; Agricultural production; Irrigated farming; Irrigation scheduling; Water allocation; Water supply; Water scarcity; Water delivery; Reservoirs; Uncertainty; Yield; Crop Production/Industries; Labor and Human Capital; Land Economics/Use.
Ano: 1998
URL: http://purl.umn.edu/44582

Policies, legislation and organizations related to water in South Africa, with special reference to the Olifants River Basin.
Provedor de dados: 31
Autores: Thompson,   Hubert; Stimie,   Chris M.; Richters,   E.; Perret,   Sylvain R.
Tipo: Working or Discussion Paper
Palavras-chave: Water resource management; River basins; Water use; Organizations; Institutions; Mapping; Government; Political aspects; Ethnology; Social status; Water policy; Water law; Land tenure; Water supply; Sanitation; Water users; Land use; Conflict; Private sector; Non-governmental organizations; Local government; Water users' associations; Catchment areas; Monitoring; Community/Rural/Urban Development; Institutional and Behavioral Economics; Land Economics/Use; Political Economy; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92770

Estimating productivity of water at different spatial scales using simulation modeling
Provedor de dados: 31
Autores: Droogers,   Peter; Kite,   Geoff.
A clear understanding of the current water balance is required to explore options for water saving measures. However, measurement of all the terms in the water balance is infeasible in terms of spatial and temporal scale, but hydrological simulation models can fill the gap between measured and required data. For a basin in Western Turkey, simulation modeling at three different scales, field, irrigation scheme and basin scale, was performed to obtain all terms of the water balance. These water balance numbers were used to calculate the Productivity of Water at the three spatial levels distinguished to assess the performance of the systems.
Tipo: Report
Palavras-chave: Water resources; Productivity; Simulation models; Water scarcity; Water supply; Water balance; Performance indexes; Indicators; River basins; Cropping systems; Crop yield; Cotton; Hydrology; Economic analysis; Agribusiness; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Production Economics; Productivity Analysis; Research Methods/ Statistical Methods.
Ano: 2001
URL: http://purl.umn.edu/44568

World water demand and supply, 1990 to 2025: scenarios and issues
Provedor de dados: 31
Autores: Seckler,   David; Amarasinghe,   Upali A.; Molden,   David J.; de Silva,   Radhika; Barker,   Randolph.
Presents two alternative scenarios of water demand and supply for 118 countries over the 1990 to 2025 period and develops indicators of water scarcity for each country and for the world as a whole. This study is the first step in IWMI's long-term research goal: to determine the extent and depth of water scarcity, its consequences for individual countries and what can be done about it.
Tipo: Report
Palavras-chave: Irrigation management; Water balance; River basins; Basin irrigation; Water use efficiency; Water supply; Water requirements; Domestic water; Water scarcity; Water demand; Water shortage; Irrigated farming; Productivity; Food security; Recycling; Rice; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty.
Ano: 1998
URL: http://purl.umn.edu/61108

Cities versus agriculture: Revisiting intersectoral water transfers, potential gains and conflicts
Provedor de dados: 31
Autores: Molle,   Francois; Berkoff,   Jeremy.
Tipo: Report
Palavras-chave: Water scarcity; Water demand; Water transfer; Water use; Water supply; Water allocation; Environmental effects; Water market; Community/Rural/Urban Development; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Productivity Analysis; Risk and Uncertainty.
Ano: 2006
URL: http://purl.umn.edu/91817

The economic conception of water
Provedor de dados: 31
Autores: Hanemann,   W. Michael.
Published in: WATER CRISIS : MYTH OR REALITY?, edited by Peter P. Rogers, M. Ramon Llamas, and Luis Martinez-Cortina.  London; New York: Taylor &amp; Francis, 2006, p. 61-91
Tipo: Working Paper
Palavras-chave: Economic aspects; Water costs; Water demand; Water pricing; Water supply; Demand and Price Analysis.
Ano: 2005
URL: http://purl.umn.edu/120463

Economies of Scale and Technical Efficiency in Community Water Systems
Provedor de dados: 31
Autores: Shih,   Jhih-Shyang; Harrington,   Winston; Pizer,   William A.; Gillingham,   Kenneth.
In this study we use datasets from the 1995 and 2000 Community Water Supply surveys to examine the production costs of water supply systems. We first estimate the economies of scale in water supply by estimating the total unit cost as well as individual component cost elasticities. For total unit cost elasticity, we find that a 1% increase in production reduces unit costs by a statistically significant 0.16%. For individual component cost elasticities, we find that higher economies of scale exist in capital costs, outside costs, other costs, and materials costs; labor costs and energy costs exhibit lower but still positive economies of scale. These economies of scale may reflect production economies or suggest that larger systems are better than smaller...
Tipo: Working or Discussion Paper
Palavras-chave: Small water systems; Water supply; Capacity development; Economies of scale; Community water systems; Resource /Energy Economics and Policy; Q25; Q28.
Ano: 2004
URL: http://purl.umn.edu/10788

Economic Impacts of Reduced Delta Exports Resulting from the Wanger Interim Order for Delta Smelt
Provedor de dados: 31
Autores: Sunding,   David L.; Ajami,   Newsha K.; Hatchett,   Steven; Mitchell,   David; Zilberman,   David.
Tipo: Working or Discussion Paper
Palavras-chave: Water transfers; Water supply; Water demand; Water conservation; Water policy; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/51558

Integrated development and management of water resources for productive and equitable use in the Indrawati River Basin, Nepal
Provedor de dados: 31
Autores: Bhattarai,   Madhusudan; Pant,   Dhruba; Mishra,   V.S.; Devkota,   Hari; Pun,   Shuku; Kayastha,   R.N.; Molden,   David J.
Tipo: Working or Discussion Paper
Palavras-chave: River basin development; Water transfer; Water rights; Water supply; Water demand; Water balance; Environmental effects; Social aspects; Development projects; Non-governmental organizations; Villages; Water users associations; Conflict; Farmers; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/92699

Possible impacts of the transformation of water infrastructure on productive water uses: The case of the Seokodibeng village in South Africa
Provedor de dados: 31
Autores: Ladki,   Marvan; Seshoka,   Jetrick; Faysse,   Nicolas; Levite,   Herve; van Koppen,   Barbara.
Tipo: Working or Discussion Paper
Palavras-chave: Water users’ associations; Water supply; Social participation; Land use; Water use; Villages; History; Domestic water; Irrigation water; Food security; Sanitation; Cost recovery; Project management; Pipes; Water balance; Livestock; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Livestock Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/92656

Performance of two transferred modules in the Lagunera Region:  Water relations
Provedor de dados: 31
Autores: Levine,   G.; Galvan,   A. Cruz; Garcia,   D.; Garces-Restrepo,   Carlos; Johnson,   Sam H., III.
Evaluates the degree of success of water users in managing water allocations and deliveries in two irrigation district modules in the Lagunera Region of Mexico. Policies and practices are evaluated from the standpoints of the nature of planning rules, consistency, equity, and efficiency in implementation of the plans.
Tipo: Report
Palavras-chave: Water policy; Performance; Privatization; Irrigation systems; Operations; Maintenance; Irrigation efficiency; Water users' associations; Water rights; Water allocation; Water supply; Water distribution; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Land Economics/Use; Productivity Analysis.
Ano: 1998
URL: http://purl.umn.edu/44583

Development and evaluation of a regional water poverty index for Benin
Provedor de dados: 31
Autores: Heidecke,   Claudia.
The paper discusses the application of the Water Poverty Index (WPI) as a monitoring tool for Benin’s water sector. Benin is currently in a process of political decentralization shifting responsibility for and administration of rural water supplies from the national to the communal level. Appropriate indicators are needed for monitoring and analyzing the progress of the water sector for each community. The Water Poverty Index allows monitoring of a combination of aspects affecting rural water management, including water sources, access to and use of water, human capacity to manage water, and environmental impacts. The application of this index is tested for Benin at the regional level. A series of variables have been chosen for inclusion into the index...
Tipo: Report
Palavras-chave: Water poverty index; Water supply; Decentralization; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/55413

Farmers' perceptions of the social mobilization of water user organizations in the Sindh, Pakistan
Provedor de dados: 31
Autores: Starkloff,   Ralf.
Tipo: Working or Discussion Paper
Palavras-chave: Water users' associations; Participatory management; Farmer participation; Leadership; Water supply; Water distribution; Maintenance; Privatization; Irrigation programs; Irrigation canals; Farmers' associations; Farm Management; Institutional and Behavioral Economics.
Ano: 2001
URL: http://purl.umn.edu/92778

Improved water and land management in the Ethiopian highlands: its impact on downstream stakeholders dependent on the Blue Nile; Intermediate Results Dissemination Workshop February 5-6, 2009, Addis Ababa, Ethiopia
Provedor de dados: 31
Autores: Awulachew,   Seleshi Bekele; Erkossa,   Teklu; Smakhtin,   Vladimir U.; Fernando,   Ashra.
Tipo: Conference Paper or Presentation
Palavras-chave: River basin management; Watershed management; Farming systems; Water balance; Reservoirs; Water supply; Irrigation requirements; Irrigation programs; Simulation models; Sedimentation; Rainfall-Runoff relationships; Erosion; Soil water; Water balance; Soil conservation; Institutions; Organizations; Policy; Water governance; International waters; Institutional and Behavioral Economics; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/118389

Capacity building for participatory irrigation management in Sindh Province of Pakistan.
Provedor de dados: 31
Autores: Memon,   Yameen; Talpur,   Mustafa; Murray-Rust,   Hammond.
Tipo: Working or Discussion Paper
Palavras-chave: River basins; Institutions; Organizations; Private sector; Public sector; Local government; Mapping; Water resource management; Water policy; Legislation; Rural women; Constraints; Groundwater; Surface water; Water quality; Water use; Water users; Dams; Reservoirs; Large-scale systems; Irrigation management; Industrialization; Case studies; Operations; Maintenance; Canals; Conflict; Farmer-agency interactions; Policy; Water supply; Rural development; Community/Rural/Urban Development; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92769

Water markets in the Fordwah/Eastern Sadiqia area: an answer to perceived deficiencies in canal water supplies?
Provedor de dados: 31
Autores: Strosser,   Pierre; Kuper,   Marcel.
This paper presents the results of a study on water markets in the Fordwah/Eastern Sadiqia Area, Punjab, Pakistan. The study stresses and quantifies the importance of water markets in the area. A first attempt is made to evaluate the impact of water markets on the quality of irrigation services.
Tipo: Working or Discussion Paper
Palavras-chave: Water market; Water supply; Groundwater; Surface irrigation; Conjunctive use; Tube well irrigation; Agricultural production; Water policy; Pricing; Water costs; Farmer participation; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Financial Economics; Production Economics.
Ano: 1994
URL: http://purl.umn.edu/114047

Innovative approaches to agricultural water use for improving food security in Sub-Saharan Africa
Provedor de dados: 31
Autores: Inocencio,   Arlene; Sally,   Hilmy; Merrey,   Douglas J.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigated farming; Water use; Food security; Water resources; Water supply; Rain; Water harvesting; Wetlands; Food production; Groundwater management; Urbanization; Recycling; Effluents; Waste waters; Water reuse; Water demand; Crop production; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/92701

Economic analysis of water supply cost structure in the Middle Olifants sub-basin of South Africa
Provedor de dados: 31
Autores: Tsegai,   Daniel W.; Linz,   Teresa; Kloos,   Julia.
Using data gathered from the National Treasury of South Africa, we examine the structure of water supply costs and tariffs of Water Service Authorities (WSAs) in the Middle Olifants sub-basin of South Africa. Using the translog cost function method, the marginal cost of water supply and economies of scale are estimated. Comparison of tariffs and marginal costs show that the estimated marginal cost is higher than the actual tariff paid by consumers. This implies that WSAs in the Middle Olifants are not charging enough to recover the costs of the water services. Thus, among other things, pricing of water at its marginal cost would partly assist in solving the cost recovery problem. Raised tariffs would in turn contribute to improved efficiency of water use....
Tipo: Working or Discussion Paper
Palavras-chave: Translog cost function; Water supply; Water Service Authority; Middle Olifants; South Africa; Environmental Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/49926

Integrated water resource systems:  Theory and policy implications
Provedor de dados: 31
Autores: Keller,   Andrew; Keller,   Jack; Seckler,   David.
Presents the concept of integrated water resources systems (IWS) as clearly and simply as possible, with a focus on the irrigation sector-the largest and most complex user of water.
Tipo: Report
Palavras-chave: Water resource management; Water policy; Irrigation efficiency; Water demand; Leaching; Water use efficiency; Water supply; Evapotranspiration; Models; Water conservation; Crop Production/Industries; Farm Management; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/52730

2nd Forum on Irrigation and water for sustainable development: 15 –16 December, 2008 Ghion Hotel, Addis Ababa, Ethiopia
Provedor de dados: 31
Autores: Awulachew,   Seleshi Bekele; Erkossa,   Teklu; Balcha,   Yodit.
Tipo: Presentation
Palavras-chave: Sustainable development; Irrigation management; Irrigation water; Irrigated farming; Irrigation systems; Supplemental irrigation; Land management; Land use; Investment; Case studies; Government policy; Rural poverty; Groundwater; Small scale systems; Socioeconomic development; Economic aspects; Economic growth; Income; Water management; Water resources development; Water harvesting; Water supply; Public policy; Agricultural production; Developing countries; Public-private cooperation; History; Case studies; River basins; Crop production; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Farm Management; Financial Economics; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Public Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/118411

Water for rural development:  Background paper on water for rural development prepared for the World Bank
Provedor de dados: 31
Autores: Molden,   David J.; Amarasinghe,   Upali A.; Hussain,   Intizar.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Irrigation management; Rural development; Water resources development; Small scale systems; Land management; Groundwater; Environment; Health; Water policy; Institutions; Food consumption; Water supply; Water demand; Water allocation; Crop yield; Cereals; Water scarcity; Food production; Food security; Crop production; Population growth; Crop Production/Industries; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92777

Modelling Spot Water Markets Under Uncertain Water Supply
Provedor de dados: 31
Autores: Calatrava-Leyva,   Javier; Garrido,   Alberto.
Water availability in semiarid regions usually exhibits patterns of extreme variability. Even in intensively controlled basins, some users are subject to low levels of water reliability, and more vulnerable to periods of extreme scarcity. To reduce their risk exposure more flexible instruments, such as voluntary exchanges of water among users, are required. Recent changes in the Spanish water Law have given an initial impulse to allow for leases of water use rights. Properly designed and monitored, this instrument provides some flexibility to water management, and may increase the economic use efficiency as well as mitigate the adverse economic effects of droughts. This paper looks at the risks and uncertainty dimensions of water markets, which have not...
Tipo: Conference Paper or Presentation
Palavras-chave: Uncertainty; Farm modelling; Water markets; Water supply; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/24820

Real and ideal water rights: the prospects for water-rights reform in Israel, Gaza, and the West Bank
Provedor de dados: 31
Autores: Berck,   Peter; Lipow,   Jonathan.
The ideal water contract for a heterogeneous population of users is a prioritized right that is fully vested and fully tradable. A set of tradable, prioritized rights contracts will span the same space as the Debreu contingent commodities. Therefore, they lead to a competitive equilibrium that is Pareto optimal. Equal sharing of water shortfalls does not have this property.  Existing water policies in Israel and the Disputed Territories are not characterized by an efficient set of water contracts. The system misallocates water over both time and space.  Current policies are driven by strategic and ideological objectives. With peace, reform of water policies will become politically feasible. The paper concludes with a proposal for a new water-allocation...
Tipo: Working or Discussion Paper
Palavras-chave: Water policies; Water supply; Agriculture; Water rights.
Ano: 1994
URL: http://purl.umn.edu/43743

Productivity and performance of irrigated wheat farms across canal commands in the Lower Indus Basin
Provedor de dados: 31
Autores: Hussain,   Intizar; Marikar,   Fuard; Jehangir,   Waqar Ahmed.
A study of the enormous differences in agricultural productivity that exist across farms and regions in Pakistan, where, for example, recent farm-level data from Sindh, indicates that irrigated wheat output per hectare varies from 0.5 to 5.4 tons across farms. Looks at the central goal of agricultural policy in the country, viz. improving and sustaining productivity, narrowing the existing productivity gaps, and enhancing resource use efficiencies to meet food requirements of a rapidly growing population.
Tipo: Report
Palavras-chave: Irrigated farming; Wheat; Productivity; Performance evaluation; Water management; Cropping systems; Water supply; Soil properties; Models; Pakistan; Lower Indus Basin; Agribusiness; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Production Economics; Productivity Analysis.
Ano: 2000
URL: http://purl.umn.edu/53023

National Conferencs on Water, Food Security and Climate Change in Sri Lanka, Volume 3; Proceeding of the Policies, Institutions and Data Needs for Water Management, BMICH, Colomba June 9-11, 2009
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Water resource management; Water governance; Organizations; Institutions; Water policy; Water rights; Irrigation management; Participatory management; Farmers organizations; Capacity building; Irrigation efficiency; Water demand; Water supply; Irrigation schemes; Operations; Maintenance; Groundwater management; Models; Economic analysis; Food security; Farm Management; Financial Economics; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Industrial Organization; Institutional and Behavioral Economics; Political Economy; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/118415

Tsunami impacts on shallow groundwater and associated water supply on the East Coast of Sri Lanka: a post-tsunami well recovery support initiative and an assessment of groundwater salinity in three areas of Batticaloa and Ampara Districts
Provedor de dados: 31
Autores: Villholth,   K.G.; Amerasinghe,   Priyani H.; Jeyakumar,   P.; Panabokke,   Christopher Rajendra; Woolley,   Olivia; Weerasinghe,   M.D.; Amalraj,   N.; Prathepaan,   S.; Burgi,   N.; Lionelrathne,   D.M.D.S.; Indrajith,   N.G.; Pathirana,   S.R.K.
Tipo: Book
Palavras-chave: Groundwater; Aquifers; Salinity; Natural disasters; Water supply; Drinking water; Wells; Rehabilitation; Mosquitoes; Disease vectors; Environmental Economics and Policy; Health Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/118303

Multiple-use water services to advance the millennium development goals
Provedor de dados: 31
Autores: van Koppen,   Barbara; Moriarty,   Patrick; Boelee,   Eline.
This research report presents the findings of the first phase of the action-research project "Models for implementing multiple-use water supply systems for enhanced land and water productivity, rural livelihoods and gender equity." Multipleuse water services, or "mus" in short, is a participatory, integrated and poverty-reduction focused approach in poor rural and peri-urban areas, which takes people's multiple water needs as a starting point for providing integrated services, moving beyond the conventional sectoral barriers of the domestic and productive sectors.
Tipo: Report
Palavras-chave: Water supply; Poverty; Models; Irrigation water; Domestic water; Drinking water; Gender; Cost recovery; Water quality; Environmental sustainability; Participatory management; Social participation; Legislation; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management.
Ano: 2006
URL: http://purl.umn.edu/44523

Developing effective institutions for water resources management:  A case study in the Deduru Oya Basin, Sri Lanka
Provedor de dados: 31
Autores: Somaratne,   Pallewatte G.; Jinapala,   Kiribandage; Perera,   L.R.; Ariyaratne,   Badugodahewa Ranjith; Bandaragoda,   Don Jayatissa; Makin,   I.W.
Tipo: Working or Discussion Paper
Palavras-chave: River basins; Water resource management; Water lifting; Wells; Domestic water; Population; Economic aspects; Income; Irrigation programs; Institutions; Policy; Groundwater; Agricultural development; Fish farming; Pumps; Ecology; Water supply; Drought; Poverty; Land use; Water scarcity; Natural resources; Agricultural production; Cropping systems; Agricultural and Food Policy; Agricultural Finance; Consumer/Household Economics; Crop Production/Industries; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Political Economy; Production Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/92665

China’s water pricing reforms for irrigation: effectiveness and impact
Provedor de dados: 31
Autores: Liao,   Yongsong; Gao,   Zhanyi; Bao,   Ziyun; Huang,   Qingwen; Feng,   Guangzhi; Xu,   Di; Cai,   Jiabin; Han,   Huijing; Wu,   Weifeng.
Irrigation occupies a central position in China’s crop production. However, due to low per capita water resources, much worse, unevenly distributed over regions and time and the rapid increase of water diversions to non-irrigation sectors, irrigation water shortages have become a very serious problem. Without the adoption of effective measures this problem may even threaten China’s food security. Currently, irrigation efficiency is very low in general, irrigation water prices cannot fully recover water supply costs, and irrigation facilities are aging due to the lack of funding for O&amp;M (operation &amp; maintenance). Since water prices are regulated by the government, and not determined by the market, water prices did not work effectively in water...
Tipo: Working or Discussion Paper
Palavras-chave: Water rates; Pricing; Price policy; Cost recovery; Farmers attitudes; Water rights; Water market; Water supply; User charges; Irrigation water; Water allocation; Irrigation management; Participatory management; Water conservation; Institutions; Organizations; Water users associations; Cereals; Yields; Models; Labor; Cost benefit analysis; Irrigation requirements; Investment; Groundwater management; Wells; Irrigation canals; Food security; Legal aspects; Crop Production/Industries; Farm Management; Food Security and Poverty; Production Economics; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/91872

Accounting for water use and productivity
Provedor de dados: 31
Autores: Molden,   David J.
This paper presents a conceptual framework for water accounting and provides generic terminologies and procedures to describe the status of water resource use and consequences of water resources related actions. The framework applies to water resource use at three levels of analysis: a use level such as an irrigated field or household, a service level such as an irrigation or water supply system, and a water basin level that may include several uses. Water accounting terminology and performance indicators are developed and presented with examples at all the three levels. Concepts and terminologies presented are developed to be supportive in a number of activities including: identification of opportunities for water savings and  increasing water...
Tipo: Book
Palavras-chave: Water management; Irrigation management; Water supply; Terminology; Performance indexes; Water use; Water allocation; Productivity; Water balance; Crop Production/Industries; Farm Management; Productivity Analysis.
Ano: 1997
URL: http://purl.umn.edu/113623

Spatial variation in water supply and demand across river basins of India
Provedor de dados: 31
Autores: Amarasinghe,   Upali A.; Sharma,   Bharat R.; Aloysius,   Noel; Scott,   Christopher A.; Smakhtin,   Vladimir U.; de Fraiture,   Charlotte.
India is a large country with regional differences in per-capita water supply and demand. Attempts to describe the water situation in India at a national level are often misleading due to the tremendous diversity in the water situation across the country. This Report analyzes the spatial variation of water supply and demand across river basins in India. The study identifies basins that are water-scarce because of inadequate water availability to meet the effective demand. It also identifies issues that are important for estimating the future water demand and for the formation of policy for future water-resources development and management.
Tipo: Report
Palavras-chave: Water supply; Water demand; River basins; Catchment areas; Water availability; Water scarcity; Estimation; Irrigation water; Domestic water; Population growth; Urbanization; Groundwater extraction; Crop production; Policy; Water transfer; India; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics.
Ano: 2004
URL: http://purl.umn.edu/52966

India’s water future to 2025-2050: business-as-usual scenario and deviations
Provedor de dados: 31
Autores: Amarasinghe,   Upali A.; Shah,   Tushaar; Turral,   Hugh; Anand,   B.K.
With a rapidly expanding economy many changes are taking place in India today. The business-as-usual (BAU) scenario, which assumes the continuation of current trends of key water demand drivers, will meet the future food demand. However, it leads to a severe regional water crisis by 2050, where many river basins will reach closure, will be physically water-scarce and will have regions with severely overexploited groundwater resources. While the alternative scenarios of water demand show both optimistic and pessimistic water futures, the scenario with additional productivity growth is the most optimistic, with significant scope for reducing future water demand.
Tipo: Report
Palavras-chave: Water demand; Water supply; Population growth; Crop production; Crop yield; Groundwater; Irrigation; Food security; Crop Production/Industries; Food Security and Poverty; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/44522

Assessment of performance and impact of irrigation and water resources  systems in Taiwan and Sri Lanka: Final report
Provedor de dados: 31
Autores: Sakthivadivel,   Ramasamy; Aloysius,   Noel; Matsuno,   Yutaka.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation systems; Water scarcity; Water allocation; Water supply; Water quality; Water distribution; Decision making; Water management; Regression analysis; Performance evaluation; Sustainability; Irrigated farming; Agricultural development; Farm size; Irrigation management; Farmers' associations; Rain; Paddy cultivation; Crop yield; Costs; Productivity; Crop Production/Industries; Farm Management; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92774

The use of computable general equilibrium models to assess water policies
Provedor de dados: 31
Autores: Berck,   Peter; Robinson,   Sherman; Goldman,   George E.
This paper discusses basic issues in project analysis and shows how these issues can be resolved in a computable general equilibrium (CGE) framework. The role of border prices and intersectoral linkages is explored. The CGE framework is compared to less comprehensive frameworks, including benefit-cost analysis, input-output models, multi-market models, and models based on social accounting matrices (SAMs). An illustrative CGE model of the southern portion of the San Joaquin Valley is constructed and is used to find the effects of reducing water inputs on aggregate Valley gross domestic product (GDP) and on sectoral output, employment, and land use. The model is also used to determine demand curves for water by the southern portion of the Valley, given...
Tipo: Working or Discussion Paper
Palavras-chave: Benefit-cost analysis; Cge models; Employment; Input-output analysis; Land utilization; Sam; Water supply.
Ano: 1990
URL: http://purl.umn.edu/43668

Productivity and performance of irrigated wheat farms across canal commands in the Lower Indus Basin
Provedor de dados: 31
Autores: Hussain,   Intizar; Marikar,   Fuard; Jehangir,   Waqar Ahmed.
A study of the enormous differences in agricultural productivity that exist across farms and regions in Pakistan, where, for example, recent farm-level data from Sindh, indicates that irrigated wheat output per hectare varies from 0.5 to 5.4 tons across farms. Looks at the central goal of agricultural policy in the country, viz. improving and sustaining productivity, narrowing the existing productivity gaps, and enhancing resource use efficiencies to meet food requirements of a rapidly growing population.
Tipo: Report
Palavras-chave: Irrigated farming; Wheat; Productivity; Performance evaluation; Water management; Cropping systems; Water supply; Soil properties; Models; Pakistan; Lower Indus Basin; Community/Rural/Urban Development; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Production Economics; Productivity Analysis.
Ano: 2000
URL: http://purl.umn.edu/53024

Changes in water duties and their impact on agricultural production: the case of Girsal Minor
Provedor de dados: 31
Autores: Strosser,   Pierre; Afaq,   Rana M.; Garces,   Carlos.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Canal irrigation; Water supply; Water management; Watercourses; Tube wells; Agricultural production; Crop yield; Wheat; Crop Production/Industries; Farm Management; Production Economics.
Ano: 1993
URL: http://purl.umn.edu/114046

Strategic Analyses of the National River Linking Project (NRLP) of India Series 5; Proceedings of the Second National Workshop on Strategies Issues in Indian Irrigation
Provedor de dados: 31
Autores: International Water Management Institute (IWMI).
Tipo: Presentation
Palavras-chave: Irrigation management; Institutional reform; Surface irrigation; River basin management; Water transfer; Investment; Irrigation programs; Policy; Water users associations; Groundwater management; Groundwater recharge; Water supply; Drinking water; Watershed management; Crops; Crop Production/Industries; Financial Economics; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/118413

Impact of management interventions on the performance of five irrigation schemes in Sri Lanka
Provedor de dados: 31
Autores: Imbulana,   K.A.U.S.; Merrey,   Douglas J.
This working paper is the outcome of a data collection process initiated under the advice of Dr. Shigeo Yashima of the International Irrigation Management Institute (IIMI). The objective of this data collection process was to make a preliminary assessment of irrigation performance in Sri Lanka using irrigation systems with different backgrounds to identify areas for further research.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation programs; Performance evaluation; Irrigation management; Intervention; Irrigation systems; Monitoring; Performance indexes; History; Farmers associations; Farmer participation; Farmer-agency interactions; Communication; Organizations; Water potential; Rice; Crop yield; Water supply; Land productivity; Rain; Data collection; Farm Management; Institutional and Behavioral Economics; Land Economics/Use.
Ano: 1995
URL: http://purl.umn.edu/113609

Multiple use schemes: Benefit to smallholders
Provedor de dados: 31
Autores: Pant,   Dhruba; Gautam,  Kamal Raj; Shakya,   Sabita Dhakhwa; Adhikari,   Deepak Lochan.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation programs; Water supply; Domestic water; Drinking water; Irrigation water; Drip irrigation; Sprinkler irrigation; Vegetables; Cereals; Women; Land ownership; Participatory management; Farmer participation; Water users; Social aspects; Households; Income; Credit; Crop Production/Industries; Farm Management; Labor and Human Capital; Land Economics/Use; Production Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/91944

Institutional settings and livelihood strategies in the Blue Nile Basin: Implications for upstream/downstream linkages
Provedor de dados: 31
Autores: Haileslassie,   Amare; Hagos,   Fitsum; Mapedza,   Everisto; Sadoff,   Claudia W.; Awulachew,   Seleshi Bekele; Gebreselassie,   Solomon; Peden,   Don.
Through rapid assessment of existing literature and review of policy and other official documents, the report synthesizes the existing knowledge and gaps on policies and institutions and identifies key research issues that need in-depth study. The report provides an overview of the range of key livelihoods and production systems in the Blue Nile Basin (BNB) and highlights their relative dependence on, and vulnerability to, water resources and water-related ecosystem services. It also makes an inventory of current water and land related policies and institutions in the BNB, their organizational arrangements, dynamics and linkages and key policy premises. It highlights the major problems in institutional arrangements and policy gaps and makes suggestions for...
Tipo: Working or Discussion Paper
Palavras-chave: River basins; Water policy; Institutions; Institutional development; Farming systems; Mixed farming; Cereals; Sorghum; Irrigated farming; Vegetables; Pastoralism; Poverty; Water supply; Sanitation; Labor; Ecosystems; Energy; Water power; Watershed management; Water harvesting; Legal aspects; Environmental policy; Water users associations; Irrigation programs; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/91871

Groundwater Management and the Cost of Reduced Surface Water Deliveries to Urban Areas: The Case of the Central and West Coast Basins of Southern California
Provedor de dados: 31
Autores: Sunding,   David L.; Hamilton,   Stephen F.; Ajami,   Newsha K.
The Central and West Coast groundwater basins (“basins” or “Central and West Coast Basins”) are located in southern Los Angeles County. Groundwater produced from these basins provides approximately forty percent of the water supply for residents and businesses in all or parts of 43 cities. The 4 million residents in the area comprise more than ten percent of the total population of the State of California.  This report measures the economic costs and benefits of the various program elements encompassed by the proposed judgment amendments (Judgment Amendments) to pumpers extracting groundwater in the basins. Because those pumpers include water agencies, who collectively serve nearly 4 million customers the economic costs and benefits also extend to the...
Tipo: Working or Discussion Paper
Palavras-chave: Groundwater; Water supply; Water costs; Water demand; Water policy; Demand and Price Analysis; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/51596

Modernization using the structured system design of the Bhadra Reservoir Project, India: An intervention analysis
Provedor de dados: 31
Autores: Sakthivadivel,   Ramasamy; Thiruvengadachari,   S.; Amarasinghe,   Upali A.
Evaluates the performance of the Bhadra Reservoir Project-before, during, and after the introduction of modernization with structured system design. Analysis focuses on water management, agricultural productivity, and farmer participation and perception. Identifies the absence of a continuing support mechanism and lack of farmer participation as the major causes for the project's decline.
Tipo: Report
Palavras-chave: Performance evaluation; Irrigation programs; Modernization; Participatory management; Farmer participation; Farmer-agency interactions; Farmers' attitudes; Remote sensing; Rice; Irrigated farming; Water distribution; Water supply; Productivity; India; Bhadra Project; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Productivity Analysis; Teaching/Communication/Extension/Profession.
Ano: 1999
URL: http://purl.umn.edu/61104

ECONOMIC VALUATION OF SOME WETLAND OUTPUTS OF MUD LAKE, MINNESOTA-SOUTH DAKOTA
Provedor de dados: 31
Autores: Roberts,   Lisa A.; Leitch,   Jay A.
The objective of this study was to estimate some economic values of Mud Lake, a managed, lacustrine wetland on the Minnesota-South Dakota border.  Several outputs of Mud Lake were identified and an economic value was estimated for each.  Flood control was valued at approximately $440 per acre, based on dollar damages prevented; water supply, using public utility revenues, was valued at $94 per acre; fish/wildlife habitat, recreation, and aesthetics were valued at about $21 per acre using the Contingent Valuation Method; and corrective expenditures were used to evaluate water quality at a negative per acre value of $180.  When capitalized at 6 percent, the estimated total annual value of these four outputs is $6,250 per acre.  These values can assist...
Tipo: Working or Discussion Paper
Palavras-chave: Wetland; Outputs; Economic valuation; Flood control; Water supply; Water quality; Recreation; Aesthetics; Fish/wildlife habitat; Contingent valuation method; Resource /Energy Economics and Policy; Land Economics/Use.
Ano: 1997
URL: http://purl.umn.edu/23406

Effect of water supplied to Bogor no.2 corn and Hegari no.13 at Mae Klong Yai Irrigation Experiment Station, 1974 dry season
Provedor de dados: 106
Autores: Pradit Ritruengdet.
6 tables
Palavras-chave: Corn; Maize; Sorghum; Water supply; Bogor no.2; Hegari no.13; Varieties; Mae Klong Yai irrigation; Dry season; Yields; ข้าวโพด; ข้าวฟ่าง; การใช้น้ำ; พันธุ์โบกอร์ 2; พันธุ์เฮกการี่ 13.
Ano: 1975
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3840

Water quality for rural home supplying in the south of Brazil
Provedor de dados: 3
Autores: Hollas, Camila Ester; Pokrywiecki, Ticiane Sauer; Prado, Naimara Vieira do; Chini, Angélica; Düsman, Elisângela; Conceição, Priscila Soraia da.
Underground and surface water as a result of human activity are increasingly polluted. Mainly due to improper disposal of waste, discharge of effluents, among other actions that compromise the environment. The water analysis is necessary to determine and evaluate the situation of water supply to the population. This study evaluated the supply situation of three rural communities located in the south of Brazil, where the water is carried out through the abstraction of groundwater. Pastures, fields and remnants of native vegetation characterize the region. The water quality used to supply was what motivated the accomplishment of this work. The wells are unprotected in the middle of the pastures near to black cesspits and crops that use frequently...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental education; Water treatment; Water supply; Groundwater; Organisms tests.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43266

Environmental physiology of the bananas (Musa spp.)
Provedor de dados: 61
Autores: Turner,David W.; Fortescue,Jeanie A.; Thomas,Dane S.
The bananas are thought to be particularly sensitive to changes in the environment. This review considers some historical and recent investigations into the response of the leaf, root and reproductive system to the environment. Monteith's analysis of the response of plants to intercepted radiation is appropriate for analyzing the productivity of bananas and plantains. The banana is sensitive to soil water deficits, and expanding tissues such as emerging leaves and growing fruit are among the first to be affected. As soil begins to dry, stomata close and leaves remain highly hydrated, probably through root pressure. Productivity is affected because of the early closure of stomata. We find the common belief that bananas use large amounts of water does not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop yield; Leaf system; Light; Photoperiod; Photosynthesis; Reproductive system; Root system; Temperature; Water supply.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400013