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The Future Of Irrigated Agriculture In Sa
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Book Synopsis Advances in water research by : Nhamo, L.
Download or read book Advances in water research written by Nhamo, L. and published by IWMI. This book was released on 2023-03-09 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water scarcity has become one of the greatest challenges facing humankind today. Its scarcity is compounded by climate change and increasing demand from a growing population. In South Africa, over 60% of the available freshwater resources are used in agriculture, mainly in irrigated agriculture. There is an urgent need to promote sustainable irrigation technologies that optimize food production without increasing water applied and with positive environmental spinoffs. Sustainable irrigation technologies and practices could enhance water use efficiency (WUE) and productivity in agriculture and reduce environmental burdens, including energy use. This chapter highlights some of the innovative irrigation practices and technologies that enhance food production and, at the same time, reduce water use in agriculture. The chapter broadly discusses WUE and water productivity (WP) in irrigated agriculture from engineering and agronomic perspectives. The chapter further highlights some of the environmental impacts of irrigation expansion and the possible solutions. We further provide the importance of accurate spatial information on irrigated areas to inform policy on irrigation expansion. The Water Research Commission (WRC) of South Africa has been spearheading research on the sustainable use of water for the past 50 years as part of its research agenda. In Ting, D. S.-K.; O’Brien, P. G. (Eds.). Progress in sustainable development: sustainable engineering practices. Amsterdam, Netherlands: Elsevier
Book Synopsis Future of Irrigated Agriculture by :
Download or read book Future of Irrigated Agriculture written by and published by Council for Agricultural Science & Technology (Cast). This book was released on 1996 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sustainable Irrigated Agriculture by :
Download or read book Sustainable Irrigated Agriculture written by and published by . This book was released on 1998 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Future of Irrigated Agriculture in S.A. by :
Download or read book The Future of Irrigated Agriculture in S.A. written by and published by . This book was released on 1971 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental water needs and impacts of irrigated agriculture in river basins: A framework for a new research program by : Smakhtin, V.
Download or read book Environmental water needs and impacts of irrigated agriculture in river basins: A framework for a new research program written by Smakhtin, V. and published by IWMI. This book was released on 2002 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intention of this paper is to develop a framework for a new IWMI research program on environmental water requirements of aquatic ecosystems and environmental aspects associated with irrigated agriculture in river basins and wetlands. The program will be implemented primarily in the context of developing countries, but the paper also examines research questions, which are of general importance for eco-hydrology and environmental water resources management. At the same time, it does not purport to be a comprehensive coverage of the environmental water research field but is designed primarily for attention of specialists dealing with wetlands, water resources management and sustainable agricultural development within sister CGIAR centers and other similar international agencies. It is envisaged that some ideas for future research presented in the paper will also be of interest to hydrologists and ecologists engaged in developing the concepts of environmental water requirements of aquatic ecosystems. The introduction of the paper sets up the purpose of the document. This is followed by a description of a framework, which links different levels of water resources use and conservation of natural aquatic systems with various management interventions. The main focus areas of the proposed research are then discussed. They include estimating water requirements of aquatic ecosystems, evaluating scenarios of development and impacts of irrigated agriculture on rivers and wetlands, allocating water with the consideration of environmental thresholds, etc. The paper also discusses possible research activities, which are associated with these focus areas and presents examples of specific research projects that could be pursued internally or in partnership with other national and international institutions.
Book Synopsis Prospects for Irrigated Agriculture by :
Download or read book Prospects for Irrigated Agriculture written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Research Council (U.S). Committee on the Future of Irrigation in the Face of Competing Demands Publisher : ISBN 13 : Total Pages :24 pages Book Rating :4.1/5 (427 download)
Book Synopsis A New Era for Irrigation. Summary by : National Research Council (U.S). Committee on the Future of Irrigation in the Face of Competing Demands
Download or read book A New Era for Irrigation. Summary written by National Research Council (U.S). Committee on the Future of Irrigation in the Face of Competing Demands and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The transformation of irrigation boards into water user associations in South Africa: Case studies of the Umlaas, Komati, Lomati and Hereford Irrigation Boards. Volume 2 by : Nicolas Faysse
Download or read book The transformation of irrigation boards into water user associations in South Africa: Case studies of the Umlaas, Komati, Lomati and Hereford Irrigation Boards. Volume 2 written by Nicolas Faysse and published by IWMI. This book was released on 2004 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first case study deals with the Umlaas IB in KwaZulu-Natal. This Board manages water use in the upper part of the Mlazi River catchment. Around 4,000 ha are irrigated, mainly to produce maize and sugar cane. Times of water scarcity are rare. Slopes in the upper parts of the catchment are steep and the IB along with the upstream rural communities and commercial forestry companies, have undertaken several initiatives to address erosion problems in the area, with the cooperation of these companies. The second case study relates to the Komati and Lomati IBs in Mpumalanga. The irrigated area of around 21,000 ha is mainly dedicated to sugarcane farming. It hosts the largest area of small-scale irrigation farming in South Africa, but periods of water scarcity are frequent. While the IBs have not transformed into WUAs yet, they have already incorporated the emerging farmers in their area of jurisdiction, as well as in the management of water. The third case study assesses the Hereford IB in Mpumalanga. The Board manages an earthen canal, mainly for citrus and wheat farming, on a total area of 3,400 ha. Small-scale farmers have settled on an abandoned commercial farm, and the current upgrading of the emerging farmers’ scheme and the setting-up of water meters open the way for the meaningful integration of the emerging farmers in the forthcoming WUA.
Book Synopsis Incentives and Instruments for Sustainable Irrigation by : Henning Bjornlund
Download or read book Incentives and Instruments for Sustainable Irrigation written by Henning Bjornlund and published by WIT Press. This book was released on 2010 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: or impeded the successful outcomes." --Book Jacket.
Book Synopsis Prospects for Irrigated Agriculture by : Weltbank
Download or read book Prospects for Irrigated Agriculture written by Weltbank and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report derives from the importance of water for irrigation to the question, how will additional food be produced as competition for scarce land and water resources increases? The International Water Management Institute (IWMI), Food and Agriculture Organization of the United Nations (FAO), and International Food Policy Research Institute (IFPRI) provide a partial picture of supply and demand for food supply and irrigation-water by 2025 and 2030. The World Bank initiated a validation exercise in cooperation with these agencies to ensure that the models: consider a balanced range of assumptions and scenarios; introduce additional assumptions and scenarios; and replace, or fine-tune, some of them. It attempts to introduce into the forecasts the possible impacts of additional policy interventions and to evaluate their likely effects on the global projections of agriculture-water supply and demand. The validation exercise provides a review of the existing model structure and components, the assumptions made, the scenarios, and scenario results. Model assumptions, scenarios, and results of the revised response from the IWMI, FAO, and IFPRI are given as a part of the validation exercise as well as assumptions made and scenarios developed under different criteria and issues as raised by the group of experts.
Book Synopsis Costs and Performance of Irrigation Projects by : Arlene B. Inocencio
Download or read book Costs and Performance of Irrigation Projects written by Arlene B. Inocencio and published by IWMI. This book was released on 2007 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: High irrigation investment costs together with declining world prices for food and the failures of a number of high profile past irrigation projects are the main reasons for the reluctance of development agencies and governments in sub-Saharan Africa to invest more resources in irrigation. This study aims to systematically establish whether costs of irrigation projects in sub-Saharan Africa are truly high, determine the factors which influence costs and performance of irrigation projects, and recommend cost-reducing and performance-enhancing options to make irrigation investments in the region more attractive. It analyzes 314 irrigation projects implemented from 1967 to 2003 in 50 countries in Africa, Asia, and Latin America funded by the World Bank, African Development Bank and the International Fund for Agricultural Development.
Book Synopsis Application of the Water Evaluation and Planning (WEAP) Model to Assess Future Water Demands and Resources in the Olifants Catchment, South Africa by : Roberto Arranz
Download or read book Application of the Water Evaluation and Planning (WEAP) Model to Assess Future Water Demands and Resources in the Olifants Catchment, South Africa written by Roberto Arranz and published by IWMI. This book was released on 2007 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Olifants catchment is one of 19 Catchment Management Areas in South Africa. Different water users (i.e., rural, urban, mining, subsistence and commercial irrigated agriculture, commercial forestry, industry and power generation) are present in the catchment. Rising population andincreasing water provision in rural areas, in conjunction with the development of the mining industry, the construction of new power generation plants, the implementation of environmental flows andthe need to meet international flow requirements are going to greatly exacerbate the complexity of future water resources management in what is already a water-stressed catchment. Being able to assess the ability of the catchment to satisfy potential water demands is crucial in order to plan for the future and make wise decisions. In this study, a scenario analysis approach was used in conjunction with the Water Evaluation And Planning model, in order to assess the impacts of possible water demands on the water resources of the Olifants catchment in 2025. Foreach scenario, the water resource implications were compared to a 1995 “baseline.” The model enabled analyses of unmet water demands, streamflows and water storage for each scenario. The model results show that for the different scenarios considered in this study the implementation of the Environmental Reserve (an instream requirement to guarantee the health of the riverine ecosystems) will increase the shortages for other sectors. The construction of the main water storage infrastructure proposed by the Department of Water Affairs and Forestry, in conjunction with the application of Water Conservation and Demand Management practices, can reduce the unmet demands and shortfalls to levels lower than, or similar to, those experienced in the 1995 baseline. However, in all cases these interventions will be insufficient to completely meet the demands of all the sectors. A tight control of the growth in future demands is essential, although this may be difficult in a rapidly developing country like South Africa.
Book Synopsis Comprehensive Global Assessment of Costs, Benefits, and Future Directions of Irrigated Agriculture by : Kenneth M. Strzepek
Download or read book Comprehensive Global Assessment of Costs, Benefits, and Future Directions of Irrigated Agriculture written by Kenneth M. Strzepek and published by . This book was released on 2001 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pricing Irrigation Water by : Yacov Tsur
Download or read book Pricing Irrigation Water written by Yacov Tsur and published by Resources for the Future. This book was released on 2004 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: As globalization links economies, the value of a country's irrigation water becomes increasingly sensitive to competitive forces in world markets. Water policy at the national and regional levels will need to accommodate these forces or water is likely to become undervalued. The inefficient use of this resource will lessen a country's comparative advantage in world markets and slow its transition to higher incomes, particularly in rural households. While professionals widely agree on what constitutes sound water resource management, they have not yet reached a consensus on the best ways of implementing policies. Policymakers have considered pricing water - a debated intervention - in many variations. Setting the price 'right, ' some say, may guide different types of users in efficient water use by sending a signal about the value of this resource. Aside from efficiency, itself an important policy objective, equity, accessibility, and implementation costs associated with the right pricing must be considered. Focusing on the examples of China, Mexico, Morocco, South Africa, and Turkey, Pricing Irrigation Water provides a clear methodology for studying farm-level demand for irrigation water. This book is the first to link the macroeconomics of policies affecting trade to the microeconomics of water demand for irrigation and, in the case of Morocco, to link these forces to the creation of a water user-rights market. This type of market reform, the contributors argue, will result in growing economic benefits to both rural and urban households
Book Synopsis The Future for Irrigated Agriculture in Victoria by : Gary Stoneham
Download or read book The Future for Irrigated Agriculture in Victoria written by Gary Stoneham and published by . This book was released on 1991 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Climate Change and Agriculture in Africa by : Ariel Dinar
Download or read book Climate Change and Agriculture in Africa written by Ariel Dinar and published by Earthscan. This book was released on 2012 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'This is a well researched, thorough and impressive work on climate change and agriculture in Africa. I recommend it to students, researchers and practitioners working on climate change issues' Jabavu Clifford Nkomo, senior programme specialist, IDRC This landmark book encompasses a comprehensive assessment of the potential economic impacts of future climate change, and the value of adaptation measures in Africa for different zones, regions, countries and farm types. Researchers developed and applied multiple analytical procedures to assess quantitatively how climate affects current agricultural systems in Africa, enabling them to predict how these systems may be affected in the future by climate change under various global warming scenarios, and suggesting what role adaptation could play. The study is the first to combine spatially referenced household survey data with climatic data at both national and international levels. This book provides vital knowledge about the impacts of climate change on Africa, serving as a guide to policy intervention strategies and investment in adaptation measures. It makes a major contribution to the analysis of climate change impacts and developing adaptation strategies, especially in the highly vulnerable farming communities in the developing world. Published with CEEPA and supported by the World Bank.
Book Synopsis Potential Business Opportunities Created by Future Rural Development Initiatives in South Africa by : David Cooper
Download or read book Potential Business Opportunities Created by Future Rural Development Initiatives in South Africa written by David Cooper and published by . This book was released on 1995 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
