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	Provedor de dados AgEcon (7) Ecology and Society (4) Autor Awulachew, Seleshi Bekele (2) Crean, Jason (2) Alemayehu, Tadesse (1) Aluwihare, Parakrama B. (1) Brown, Cate; Southern Waters Ecological Research and Consulting; (1) Davenport, Scott V. (1) Erkossa, Teklu (1) Esselman, Peter C; Department of Fisheries and Wildlife, Michigan State University; pce@msu.edu (1) Fernando, Ashra (1) Jones, Randall E. (1) King, Jackie; University of Cape Town; Jackie.King@uct.ac.za (1) Letcher, Rebecca A. (1) McCartney, Matthew P. (1) Opperman, Jeffrey J; The Nature Conservancy; jopperman@tnc.org (1) Richter, Brian D.; The Nature Conservancy; brichter@TNC.ORG (1) Shiferaw, Abeyu (1) Smakhtin, Vladimir U. (1) Thomas, Gregory A.; Natural Heritage Institute; gat@n-h-i.org (1) Mais... Palavra-chave Environmental flows (11) Environmental Economics and Policy (5) Resource /Energy Economics and Policy (4) Rainfed farming (3) Agricultural and Food Policy (2) Climate change (2) Dams (2) Farm Management (2) Food Consumption/Nutrition/Food Safety (2) Food Security and Poverty (2) Food security (2) Hydrology (2) Models (2) Rivers (2) Water productivity (2) Water use (2) Wetlands (2) Agribusiness (1) Agricultural Finance (1) Agricultural policy (1) Mais... Tipo do documento Book (2) Peer-Reviewed Reports (2) Peer-Reviewed Synthesis (2) Presentation (2) Conference Paper or Presentation (1) Journal Article (1) Report (1) Mais... Ano 2012 (1) 2010 (3) 2009 (2) 2008 (1) 2007 (2) 2006 (1) 1999 (1) Mais... País United States (7) Canada (4) Idioma Inglês (11)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 11 Primeira ... 1 ... Última Environmental Flows: Striking the Balance between Development and Resource Protection Ecology and Society King, Jackie; University of Cape Town; Jackie.King@uct.ac.za; Brown, Cate; Southern Waters Ecological Research and Consulting;. Management of scarce water resources through the use of environmental flows, particularly in developing countries in data-poor arid areas, raises many scientific challenges. These include transforming hydrological data into an ecologically relevant format, providing quantified predictions of river responses to flow change, describing the impacts of river change on common-property users of the rivers, providing the information in a format that decision makers can use, and guiding monitoring and adaptive management. Each of these challenges emerged in South Africa during the last two decades, when rivers and other aquatic ecosystems were enhanced in stature from having no rights to their own water to being one of only two sectors with a right to water; the... Tipo: Peer-Reviewed Reports Palavras-chave: Environmental flows; South Africa; Holistic approach; Biophysical change; River condition; Common-property use; Decision support system. Ano: 2006 Linking Flow Regime and Water Quality in Rivers: a Challenge to Adaptive Catchment Management Ecology and Society Water quality describes the physicochemical characteristics of the water body. These vary naturally with the weather and with the spatiotemporal variation of the water flow, i.e., the flow regime. Worldwide, biota have adapted to the variation in these variables. River channels and their riparian zones contain a rich selection of adapted species and have been able to offer goods and services for sustaining human civilizations. Many human impacts on natural riverine environments have been destructive and present opportunities for rehabilitation. It is a big challenge to satisfy the needs of both humans and nature, without sacrificing one or the other. New ways of thinking, new policies, and institutional commitment are needed to make improvements, both in... Tipo: Peer-Reviewed Synthesis Palavras-chave: Catchment scale; Ecosystem processes; Environmental flows; Flow regime; Rivers; Water quality. Ano: 2008 Overcoming Information Limitations for the Prescription of an Environmental Flow Regime for a Central American River Ecology and Society Esselman, Peter C; Department of Fisheries and Wildlife, Michigan State University; pce@msu.edu; Opperman, Jeffrey J; The Nature Conservancy; jopperman@tnc.org. Tipo: Peer-Reviewed Reports Palavras-chave: Dams; Environmental flows; Fish assemblage; Honduras; Hydrology; Traditional ecological knowledge; Tropics. Ano: 2010 Restoring Environmental Flows by Modifying Dam Operations Ecology and Society Richter, Brian D.; The Nature Conservancy; brichter@TNC.ORG; Thomas, Gregory A.; Natural Heritage Institute; gat@n-h-i.org. Tipo: Peer-Reviewed Synthesis Palavras-chave: Dams; Dam re-operation; Environmental flows; Flood control dams; Flow restoration; Hydrologic alteration; Hydropower dams; Irrigation dams.. Ano: 2007 Economic cost of environmental flows in an unregulated river system AgEcon Jones, Randall E.; Crean, Jason; Aluwihare, Parakrama B.; Letcher, Rebecca A.. This paper applies a stochastic dynamic programming framework, incorporating links to hydrological and biophysical models, to assess the economic costs of environmental flows in an unregulated river system in the Namoi Valley of northern New South Wales, Australia. Structural adjustment decisions are included in the model to account for farmer responses to changes in environmental flows through the introduction of a water sharing plan. The results of the analysis indicate that the proposed level of environmental flows reduces water extractions by around 6 per cent, and imposes an opportunity cost of less than 1 per cent in terms of reduced net income over a 20-year period. Tipo: Journal Article Palavras-chave: Dynamic programming; Environmental flows; Irrigation; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/118334 Evaluation of current and future water resources development in the Lake Tana Basin, Ethiopia AgEcon McCartney, Matthew P.; Alemayehu, Tadesse; Shiferaw, Abeyu; Awulachew, Seleshi Bekele. Lake Tana, located in the headwaters of the Blue Nile, is valuable for many people including the communities who live around the lakeshore and those who live immediately downstream. The area has been identified as a region for hydropower and irrigation development, vital for economic growth in Ethiopia. A multidisciplinary study was conducted to assess the possible impacts of this development. This study found that current development has benefited some local people but adversely affected others. Future development will exacerbate pressure on the lake. Hard choices must be made about how the water is best utilized. It is important that all stakeholders, including local people, are involved in the decision-making process. Tipo: Report Palavras-chave: Lakes; Weirs; Environmental flows; Water resources development; Models; Environmental Economics and Policy; Resource /Energy Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/94776 Ecosystems for water and food security. [Background paper] AgEcon Tipo: Book Palavras-chave: Agroecosystems; Agriculture; Food security; Food production; Water scarcity; Water management; Water productivity; Wetlands; Water use; Decision making; Environmental flows; Developing countries; Hunger; Poverty; Fisheries; Climate change; Agroforestry; Biodiversity; Rangelands; Livestock; Rainfed farming; Policy; Landscape; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Production Economics. Ano: 2012 URL: http://purl.umn.edu/124386 National Conference on Water, Food Security and Climate Change in Sri Lanka, Volume 2: Proceedings of the Water Quality, Environment and Climate Change, BMICH, Colombo June 9-11, 2009 AgEcon Tipo: Presentation Palavras-chave: Wetlands; Environmental flows; Assessment; Water allocation; Case studies; Rivers; Farming systems; Models; Groundwater; Aquifers; Domestic water; Rainfed farming; Climate change; Wastewater irrigation; Rice; Food security; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Livestock Production/Industries; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/118404 BALANCING TRADE-OFFS IN THE PROVISION OF ENVIRONMENTAL FLOWS IN THE SNOWY RIVER AgEcon Crean, Jason; Davenport, Scott V.. The NSW, Victorian and Commonwealth Governments are in the process of corporatising the Snowy Mountains Hydro-electric Scheme. As part of this process a water inquiry was established to assist in the determination of the environmental operating conditions of the new business, Snowy Hydro Ltd. The Inquiry’s principal task was to examine the range of environmental issues arising from the current pattern of water flows caused by the Scheme and to develop a comprehensive range of costed options to address these issues. Central to the Inquiry’s deliberations is the re-allocation of water from irrigated agriculture and electricity generation to the Snowy River catchment. This paper focuses on trade-off issues associated with such a re-allocation and the... Tipo: Presentation Palavras-chave: Environmental flows; Environmental trade-offs; Resource allocation.; Environmental Economics and Policy. Ano: 1999 URL: http://purl.umn.edu/123798 Strategic Analyses of the National River Linking Project (NRLP) of India, Series 1. India’s water future: scenarios and issues AgEcon Tipo: Book Palavras-chave: River basins; Environmental flows; Development projects; Water requirements; Irrigated farming; Water demand; Food demand Groundwater irrigation; Irrigation efficiency; Water harvesting; Supplemental irrigation; Water productivity; Water conservation; Drip irrigation; Sprinkler irrigation; Rainfed farming; Agricultural policy; Agricultural and Food Policy; Farm Management. Ano: 2009 URL: http://purl.umn.edu/113261 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 AgEcon Awulachew, Seleshi Bekele; Erkossa, Teklu; Smakhtin, Vladimir U.; Fernando, Ashra. Tipo: Conference Paper or Presentation Palavras-chave: River basin management; Water governance; Environmental flows; Simulation models; Reservoirs; Sedimentation; Rainfall-Runoff relationships; Hydrology; Water balance; Erosion; Soil conservation; Watersheds; Irrigation schemes; Water use; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy. Ano: 2009 URL: http://purl.umn.edu/118388 Registros recuperados: 11 Primeira ... 1 ... Última

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