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Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251040584
Category : Nature
Languages : en
Pages : 112
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Book Description
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251040584
Category : Nature
Languages : en
Pages : 112
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Book Description
Author: Kenneth K. Tanji
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Science
Languages : en
Pages : 218
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Book Description
This publication contains guidelines to sustain irrigated agriculture and protect water resources from the negative impacts of agricultural drainage water disposal. Using case studies from Central Asia, Egypt, India, Pakistan and the US, this study highlights four broad groups of drainage water management options and provides information to enable assessment of their impact and contribution towards development goals and to facilitate the preparation of drainage water management plans and designs. The options are: water conservation, drainage water re-use, drainage water disposal and drainage water treatment. The full texts of the case studies can be found on the attached CD-ROM.
Author: R. S. Ayers
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 196
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Book Description
Richtlijnen voor de werker in het veld om problemen te ondervangen ten aanzien van de waterkwaliteit voor irrigatie-doeleinden. Tenslotte worden praktijkervaringen uit diverse gebieden vermeld
Author: Lambert K. Smedema
Publisher: CRC Press
ISBN: 9789058095541
Category : Science
Languages : en
Pages : 468
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Book Description
Fully renewed and extended, this edition is a valuable source of information for anyone involved in drainage engineering and management. It provides new theories, technologies, knowledge and experiences in combination with traditional land development practices in the humid temperature zone. Aspects covered include: management and maintenance; drainage application and design; and adverse impacts on the environment. Intended as both a handbook and a textbook, this work is of particular value to university students as well as professionals within drainage development, engineering and management.
Author: Harold E. Gene Garrett
Publisher: John Wiley & Sons
ISBN: 0891183779
Category : Technology & Engineering
Languages : en
Pages : 580
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Book Description
North American Agroforestry Explore the many benefits of alternative land-use systems with this incisive resource Humanity has become a victim of its own success. While we’ve managed to meet the needs—to one extent or another—of a large portion of the human population, we’ve often done so by ignoring the health of the natural environment we rely on to sustain our planet. And by deteriorating the quality of our air, water, and land, we’ve put into motion consequences we’ll be dealing with for generations. In the newly revised Third Edition of North American Agroforestry, an expert team of researchers delivers an authoritative and insightful exploration of an alternative land-use system that exploits the positive interactions between trees and crops when they are grown together and bridges the gap between production agriculture and natural resource management. This latest edition includes new material on urban food forests, as well as the air and soil quality benefits of agroforestry, agroforestry’s relevance in the Mexican context, and agroforestry training and education. The book also offers: A thorough introduction to the development of agroforestry as an integrated land use management strategy Comprehensive explorations of agroforestry nomenclature, concepts, and practices, as well as an agroecological foundation for temperate agroforestry Practical discussions of tree-crop interactions in temperate agroforestry, including in systems such as windbreak practices, silvopasture practices, and alley cropping practices In-depth examinations of vegetative environmental buffers for air and water quality benefits, agroforestry for wildlife habitat, agroforestry at the landscape level, and the impact of agroforestry on soil health Perfect for environmental scientists, natural resource professionals and ecologists, North American Agroforestry will also earn a place in the libraries of students and scholars of agricultural sciences interested in the potential benefits of agroforestry.
Author: Madramootoo
Publisher: Daya Books
ISBN: 9788170354116
Category : Technology & Engineering
Languages : en
Pages : 112
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Book Description
There are several concerns about the sustainability of irrigation and drainage projects, many of which are related to the quality and disposal of drainage water. Inadequate drainage and improper drainage water disposal have led to land degradation due to water logging and salinity. There have been instances where saline or high nutrient drainage water has damaged aquatic ecosystems. Drainage continues to be a vital and necessary component of agricultural production systems. In order to enhance the net benefits of drainage systems, more attention will need to be given to the water quality impacts of drainage water disposal. This document identifies potential problems and management options in the development, production, treatment and disposal of agricultural drainage water. Contents Chapter 1: Introduction by Chandra A Madramootoo; Need for artificial drainage, Agricultural, environmental and socio-economic benefits of drainage, Types of drainage systems, Surface drainage, Subsurface drainage, Secondary drainage treatments, Environmental impact assessment, Water quality issues, Drainage water management and disposal options, On-farm source control, Re-use of drainage water, Disposal and management of drainage water in closed basins, Water table management, Planning and designing drainage systems to protect and enhance water quality; Chapter 2: Drainage Water Quality by Dennis Westcot; Water quality charactersitics, Pesticides, Toxic trace elements, Nutrients, Sediment, Bacteria, Temperature, Salinity and major ions, Sulphurous compounds, Protection of beneficial uses, Domestic and drinking water, Industrial supply, Agricultural supply, Aquatic life, Recreation; Chapter 3: Water Table Management by Daniel Zimmer and Chandra A Madramootoo; General features, Water table control structures, Water quality benefits, Drainage hydrology and water quality, Nutrients, Pesticides, Operational aspects, Farm or catchment scale, Topography and soils, Monitoring requirements; Chapter 4: Drainage Water Re-Use; Re-use for crop irrigation by Michael C Shannon; Effects of salinity on crop growth and yield, Agricultural management practices, Managing cycling and blending strategies, Re-use for saline agriculture and forestry by Vashek Cervinka, Concept of agriculture-forestry systems and solar evaporators, System design and planning, Re-use in a natural wetland by Dick A Daniel, Re-use of surface drainage water, Re-use of subsurface drainage water; Chapter 5: Drainage Water Treatment by Lawrence Owns; Physical, chemical and biological treatment processes, Selection of treatment process, Methods of treatment, Physical/chemical treatment, Biological treatment, A treatment example, Treatment in constructed wetlands by Walter J Ochs, Flow-through wetland functions, Planning and design of flow through wetlands, Hydraulic and geohydraulic characteristics, Soils and geologic characteristics, Vegetative characteristics, Implementation, monitoring and management; Chapter 6: Drainage Water Disposal; Disposal to natural hydrological systems by William R Johnston, Land application and retirement by William R Johnston, Evaporation ponds by Kenneth K Tanji, Constructed evaporation ponds, Pond hydrology, Pond water chemistry and mineralogy, Pond biology and toxicity, Biological, chemical and physical treatment options, Deep will injection by Robert T Burns, Concept and technology, Environmental considerations, Geological considerations, Case study; Chapter 7: Health Issues Related to Drainage Water Management by Martin S Fritsch; The interactions between drainage, water management and health, Water related diseases and their vectors, Incidence of diseases - cases and mortality, Vector-borne diseases: transmission by insects, Water-based diseases: transmission by aquatic and semi-aquatic snails, Water-borne excreta related infections, Health risks and chemical pollution, Integrated control of transmission of vector-borne diseases, Components of integrated control approaches, Environmental management for vector control, Environmental management measures in drainage water management, Drainage water treatment, re-use and disposal, Environmental management measures applied to drainage structures, Development of control strategies; Chapter 8: Institutional Arrangements by Ashok Subramanian; Issues and problems, Objectives and interest groups, Need for regulation, conservation and communication, Role of public and private agencies and water users, Institutional mechanisms, Laws and regulations, Corporate organizations, Participatory planning, Incentives for water quality enhancement, Monitoring, Institutional capacity.
Author: Chandra A. Madramootoo
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Tabassum Abbasi
Publisher: Elsevier
ISBN: 0444543058
Category : Technology & Engineering
Languages : en
Pages : 375
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Book Description
This book covers water quality indices (WQI) in depth – it describes what purpose they serve, how they are generated, what are their strengths and weaknesses, and how to make the best use of them. It is a concise and unique guide to WQIs for chemists, chemical/environmental engineers and government officials. Whereas it is easy to express the quantity of water, it is very difficult to express its quality because a large number of variables determine the water quality. WQIs seek to resolve the difficulty by translating a set of a large number of variables to a one-digit or a two-digit numeral. They are essential in communicating the status of different water resources in terms of water quality and the impact of various factors on it to policy makers, service personnel, and the lay public. Further they are exceedingly useful in the monitoring and management of water quality. With the importance of water and water quality increasing exponentially, the importance of this topic is also set to increase enormously because only with the use of indices is it possible to assess, express, communicate, and monitor the overall quality of any water source. - Provides a concise guide to WQIs: their purpose and generation - Compares existing methods and WQIs and outlines strengths and weaknesses - Makes recommendations on how the indices should be used and under what circumstances they apply
Author:
Publisher: World Bank Publications
ISBN: 9780821361610
Category : Business & Economics
Languages : en
Pages : 356
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Book Description
Agricultural water management is a vital practice in ensuring reduction, and environmental protection. After decades of successfully expanding irrigation and improving productivity, farmers and managers face an emerging crisis in the form of poorly performing irrigation schemes, slow modernization, declining investment, constrained water availability, and environmental degradation. More and better investments in agricultural water are needed. In response, the World Bank, in conjunction with many partner agencies, has compiled a selection of good experiences that can guide practitioners in the design of quality investments in agricultural water. The messages of 'Shaping the Future of Water for Agriculture: A Sourcebook for Investment in Agricultural Water Management' center around the key challenges to agricultural water management, specifically: - Building policies and incentives - Designing institutional reforms - Investing in irrigation systems improvement and modernization - Investing in groundwater irrigation - Investing in drainage and water quality management - Investing in water management in rainfed agriculture - Investing in agricultural water management in multipurpose operations - Coping with extreme climatic conditions - Assessing the social, economic, and environmental impacts of agricultural water investments 'Shaping the Future of Water for Agriculture' is an important resource for those interested and engaged in development with a focus on agricultural water.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309049334
Category : Technology & Engineering
Languages : en
Pages : 541
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Book Description
How can the United States meet demands for agricultural production while solving the broader range of environmental problems attributed to farming practices? National policymakers who try to answer this question confront difficult trade-offs. This book offers four specific strategies that can serve as the basis for a national policy to protect soil and water quality while maintaining U.S. agricultural productivity and competitiveness. Timely and comprehensive, the volume has important implications for the Clean Air Act and the 1995 farm bill. Advocating a systems approach, the committee recommends specific farm practices and new approaches to prevention of soil degradation and water pollution for environmental agencies. The volume details methods of evaluating soil management systems and offers a wealth of information on improved management of nitrogen, phosphorus, manure, pesticides, sediments, salt, and trace elements. Landscape analysis of nonpoint source pollution is also detailed. Drawing together research findings, survey results, and case examples, the volume will be of interest to federal, state, and local policymakers; state and local environmental and agricultural officials and other environmental and agricultural specialists; scientists involved in soil and water issues; researchers; and agricultural producers.
