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Author : Michael Louis Niewsiadomy
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.:/5 (18 download)
Download or read book Adjusting to Diminishing Water Supplies in Irrigated Agriculture written by Michael Louis Niewsiadomy and published by . This book was released on 1983 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vasileios A. Tzanakakis
Publisher : MDPI
ISBN 13 : 3039433067
Total Pages : 290 pages
Book Rating : 4.0/5 (394 download)
Download or read book Water Supply and Water Scarcity written by Vasileios A. Tzanakakis and published by MDPI. This book was released on 2020-11-04 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Book includes selected papers that has been published in the Water journal Special Issue (SI) on Water Supply and Water Scarcity. Moreover, an overview of the SI is included. The papers selected for publication in the SI include review and research papers on water history, on water management issues under water scarcity regimes, on rainwater harvesting, on water quality and degradation, and on climatic variability impacts on water resources. Overall, the issue identify and highlight the main challenges in water sector, and particularly in management and protection of water resources and in use of alternative (non-conventional) water resources, especially in areas with demographic change and climate vulnerability in order to achieve sustainable and secure water supply. Furthermore, general guidelines and possible solutions for an improved and sophisticated water management system are proposed and discussed, such as the adoption of advanced technological solutions and practices that improve water-use efficiency and the use of alternative water resources, to address the growing environmental and health issues and to reduce the emerging conflicts among water users.
Author : William M. Crosswhite
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (31 download)
Download or read book Economic and Technical Adjustments in Irrigation Due to Declining Ground Water written by William M. Crosswhite and published by . This book was released on 1990 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wendell Holmes
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (31 download)
Download or read book Groundwater Irrigation written by Wendell Holmes and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309053315
Total Pages : 214 pages
Book Rating : 4.3/5 (9 download)
Download or read book A New Era for Irrigation written by National Research Council and published by National Academies Press. This book was released on 1996-11-21 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Irrigated agriculture has played a critical role in the economic and social development of the United Statesâ€"but it is also at the root of increasing controversy. How can irrigation best make the transition into an era of increasing water scarcity? In A New Era for Irrigation, experts draw important conclusions about whether irrigation can continue to be the nation's most significant water user, what role the federal government should play, and what the irrigation industry must do to adapt to the conditions of the future. A New Era for Irrigation provides data, examples, and insightful commentary on issues such as: Growing competition for water resources. Developments in technology and science. The role of federal subsidies for crops and water. Uncertainties related to American Indian water rights issues. Concern about environmental problems. And more. The committee identifies broad forces of change and reports on how public and private institutions, scientists and technology experts, and individual irrigators have responded. The report includes detailed case studies from the Great Plains, the Pacific Northwest, California, and Florida, in both the agricultural and turfgrass sectors. The cultural transformation brought about by irrigation may be as profound as the transformation of the landscape. The committee examines major facets of this cultural perspective and explores its place in the future. A New Era for Irrigation explains how irrigation emerged in the nineteenth century, how it met the nation's goals in the twentieth century, and what role it might play in the twenty-first century. It will be important to growers, policymakers, regulators, environmentalists, water and soil scientists, water rights claimants, and interested individuals.
Author : Jean-Marc Faurès
Publisher : Food & Agriculture Organization of the UN (FAO)
ISBN 13 : 9789251073049
Total Pages : 0 pages
Book Rating : 4.0/5 (73 download)
Download or read book Coping with Water Scarcity written by Jean-Marc Faurès and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report aims to provide a conceptual framework to address food security under conditions of water scarcity in agriculture. It has been prepared by a team of FAO staff and consultants in the framework of the project "Coping with water scarcity - the role of agriculture", and has been discussed at an Expert Consultation meeting organized in FAO, Rome, during the period 14-16 December 2009 on the same subject. It was subsequently edited and revised, taking account of discussions in the Expert Consultation and materials presented to the meeting. The purpose of the Expert Consultation was to assist FAO to better design its water scarcity programme. In particular, the experts were requested to provide recommendations on the range of technical and policy options and associated principles that FAO should promote as part of an agricultural response to water scarcity in member countries. The document offers views on the conceptual framework on which FAO's water scarcity programme should be based, proposes a set of definitions associated with the concept of water scarcity, and indicates the main principles on which FAO should base its action in support to its member countries. At the meeting, experts were requested to review the draft document and provide feedback and recommendations for its finalization. Issues that were addressed in discussions included: 3⁄4 Water scarcity: agreement on key definitions. 3⁄4 The conceptualisation of water scarcity in ways that are meaningful for policy development and decision-making. 3⁄4 The quantification of water scarcity. . 3⁄4 Policy and technical response options available to ensure food security in conditions of water scarcity. . 3⁄4 Criteria and principles that should be used to establish priorities for action in response to water scarcity in agriculture and ensure effective and efficient water scarcity coping strategies.
Author : Monobina Mukherjee
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Irrigated Agricultural Adaptation to Water and Climate Variability written by Monobina Mukherjee and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing aridity, more frequent and intense drought, and greater degrees of water scarcity create unique challenges for agriculture. In response to these challenges, which often manifest themselves as lower and more variable surface water supplies, as well as depleted and degraded ground water supplies, growers tend to seek opportunities to adapt. One option for growers to reduce their exposure to water scarcity and heightened uncertainty is to diversify. Indeed, access to a portfolio of supplies is one way in which water and irrigation districts, as well as individual growers, are responding to the changing landscape of water resource availability. This article evaluates the benefits to irrigated agriculture from having access to multiple sources of water. With farm-level information on 1,900 agricultural parcels across California, we use the hedonic property value method to investigate the extent that growers benefit from having access to multiple sources of water (i.e., a water portfolio). Our results suggest that while lower quality waters, less reliable water, and less water all negatively impact agricultural land values, holding a water portfolio has a positive impact on land values through its role in mitigating the negative aspects of these factors and reducing the sensitivity of agriculture to climate-related factors. From a policy perspective, such results identify a valuable adaptation tool that irrigation districts may consider to help offset the negative impacts of climate change, drought, and population increases on water supply availability and reliability.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251047682
Total Pages : 116 pages
Book Rating : 4.0/5 (476 download)
Download or read book Deficit Irrigation Practices written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2002 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the context of improving water productivity, there is a growing interest in deficit irrigation, an irrigation practice whereby water supply is reduced below maximum levels and mild stress is allowed with minimal effects on yield. Under conditions of scarce water supply and drought, deficit irrigation can lead to greater economic gains than maximizing yields per unit of water for a given crop; farmers are more inclined to use water more efficiently, and more water-efficient cash crop selection helps optimize returns. However, this approach requires precise knowledge of crop response to water as drought tolerance varies considerably by species, cultivar and stage of growth. The studies present the latest research concepts and involve various practices for deficit irrigation. Both annual and perennial crops were exposed to different levels of water stress, either during a particular growth phase, throughout the whole growing season or in a combination of growth stages. The overall finding, based on the synthesis of the different contributions, is that deficit or regulated-deficit irrigation can be beneficial where appropriately applied. Substantial savings of water can be achieved with little impact on the quality and quantity of the harvested yield. However, to be successful, an intimate knowledge of crop behavior is required, as crop response to water stress varies considerably.
Author : François Molle
Publisher : IWMI
ISBN 13 : 9290906243
Total Pages : 80 pages
Book Rating : 4.2/5 (99 download)
Download or read book Cities Versus Agriculture written by François Molle and published by IWMI. This book was released on 2006 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Samiha Ouda
Publisher : Springer Nature
ISBN 13 : 3030355861
Total Pages : 203 pages
Book Rating : 4.0/5 (33 download)
Download or read book Deficit Irrigation written by Samiha Ouda and published by Springer Nature. This book was released on 2020-01-22 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on proving that deficit irrigation could play an important role in increasing food production in times of water scarcity. Although the application of deficit irrigation can involve loss in crop productivity, it still secures water to be use in cultivating more lands and producing more food. The following questions are discussed and the authors offer solutions to these problems: Will the production, on a national level, resulting from these new added areas compensate yield losses attained by application of deficit irrigation? Is it possible to use deficit irrigation practice to reduce the applied irrigation water to certain crops that have a surplus in their production, and direct this saved water to cultivate new areas with crops have low self-sufficiency ratios? Under climate change in 2030, would deficit irrigation practice have the same role it plays under the current conditions? This book will appeal to students and researchers involved with water scarcity and food security.
Author : Marinus G. Bos
Publisher : Springer Science & Business Media
ISBN 13 : 1402089481
Total Pages : 186 pages
Book Rating : 4.4/5 (2 download)
Download or read book Water Requirements for Irrigation and the Environment written by Marinus G. Bos and published by Springer Science & Business Media. This book was released on 2008-11-23 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Irrigated agriculture produces about 40% of all food and fibre on about 16% of all cropped land. As such, irrigated agriculture is a productive user of resources; both in terms of yield per cropped area and in yield per volume of water consumed. Many irrigation projects, however, use (divert or withdraw) much more water than consumed by the crop. The non-consumed fraction of the water may cause a variety of undesirable effects ranging from water-logging and salinity within the irrigated area to downstram water pollution. This book discusses all components of the water balance of an irrigated area; evapotranspiration (Ch.2), effective precipitation (Ch.3) and capillary rise from the groundwater table (Ch.4). Chapter 5 then combines all components into a water management strategy that balances actual evapotranspiration (and thus crop yield) with the groundwater balance of the irrigated area (for a substainable environment). Chapter 6 presents CRIWAR 3.0, a simulation program that combines all water balance components into a single simulation procedure. The chapter describes the use of the CRIWAR software for developing water requirement tables and other useful information based on the selected water management strategy. This version greatly expands upon the capabilities of previously published programs.
Author : Sandra Postel
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.F/5 ( download)
Download or read book Water for Agriculture written by Sandra Postel and published by . This book was released on 1989 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U.S. National Academy of Sciences
Publisher : National Academies Press
ISBN 13 : 030906421X
Total Pages : 243 pages
Book Rating : 4.3/5 (9 download)
Download or read book Water for the Future written by U.S. National Academy of Sciences and published by National Academies Press. This book was released on 1999-03-09 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of a joint research effort led by the U.S. National Academy of Sciences and involving the Royal Scientific Society of Jordan, the Israel Academy of Sciences and Humanities, and the Palestine Health Council. It discusses opportunities for enhancement of water supplies and avoidance of overexploitation of water resources in the Middle East. Based on the concept that ecosystem goods and services are essential to maintaining water quality and quantity, the book emphasizes conservation, improved use of current technologies, and water management approaches that are compatible with environmental quality.
Author : Van Opstal, J., Droogers, P., Kaune, A., Steduto, P., Perry, C.
Publisher : Food & Agriculture Org.
ISBN 13 : 9251341362
Total Pages : 63 pages
Book Rating : 4.2/5 (513 download)
Download or read book Guidance on realizing real water savings with crop water productivity interventions written by Van Opstal, J., Droogers, P., Kaune, A., Steduto, P., Perry, C. and published by Food & Agriculture Org.. This book was released on 2021-03-18 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical document contains clear and practical guidelines on how to implement real water savings in agriculture through interventions for enhancing crop water productivity. A distinction is made between real water savings and “apparent” water savings. Apparent water savings record reductions in water withdrawals but do not account for changes in water consumption. Real water savings record reductions in water consumption and non-recoverable return flows (runoff or percolation). This guidance document emphasizes the paradox of water savings at field and basin scales, which usually do not translate into increased water availability for other users, as is commonly believed.
Author : Ronald L. Ritschard
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.3/5 (121 download)
Download or read book Energy & Water Use in Irrigated Agriculture During Drought Conditions written by Ronald L. Ritschard and published by . This book was released on 1978 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank van Steenbergen
Publisher : Asian Development Bank
ISBN 13 : 9292576143
Total Pages : 52 pages
Book Rating : 4.2/5 (925 download)
Download or read book Agricultural Production and Groundwater Conservation written by Frank van Steenbergen and published by Asian Development Bank. This book was released on 2016-11-01 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change and declining water resources threaten food production systems worldwide, increasing the need for efficient agricultural processes. The Shanxi Province of the People's Republic of China has been experiencing declining groundwater tables since 1956. This publication provides examples of how the Asian Development Bank's development support met the rising challenges in water security, food production, and climate change faced by communities in the Shanxi Province. It describes initiatives in four counties in the Shanxi Province selected as pilot areas, where traditional farmers learned modern methods of groundwater use and management. As a result, options for more sustainable use of groundwater were introduced, while farm labor was reduced, crop yields increased, and water was used more efficiently.
Author : Dennis Hixson
Publisher : Nova Science Publishers
ISBN 13 : 9781628084344
Total Pages : 0 pages
Book Rating : 4.0/5 (843 download)
Download or read book Conservation in Agriculture written by Dennis Hixson and published by Nova Science Publishers. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Population and economic growth, changing social values about the importance of water quality and the environment, and Native American water-right claims will continue to drive growing U.S. demand for water resources. Expansion of the U.S. energy sector is expected to further increase regional demands for water. At the same time, projected climate change, through warming temperatures, shifting precipitation patterns, and reduced snow-pack, is expected to reduce water supplies and increase water demand across much of the West. These trends are placing greater pressure on existing water allocations, heightening the importance of water management and conservation for the sustainability of irrigated agriculture. This book draws on several USDA agricultural production and water-use analyses and surveys, as well as an extensive literature review, to describe the U.S. irrigated agriculture sector, existing and emerging water demands, trends in water-use efficiency in irrigated agriculture, and funding levels (private and public) for farm-level irrigation investments.
