Download or read book Impacts of Tile Drainage on Water Quality written by and published by . This book was released on 1994 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the processes involved in movement of contaminants through the soil or over the surface and into tiles or ditches draining agricultural fields, incorporates an understanding of these processes into a physically-based model, collects field data for calibration and verification, uses the model to evaluate the effects of tile drainage on water quality, and provides guidance on potential management strategies. Algorithms to represent processes for chemical transport through the soil profile and into the tile drains were developed and incorporated into TILE, a continuous, physically-based hydrologic simulation model for tile-drained agricultural fields and basins. Data for model testing and calibration came from a cooperative field program on a tile-drained corn field and from field studies undertaken to define the physical parameters required by the model, including saturated hydraulic conductivity, soil type and depth, drainable porosity, and infiltration characteristics. Testing of the water quality algorithms for the pesticide employed (metolachlor) was undertaken and scenarios involving the application of pesticides and fertilizers and the timing of rainfall were evaluated to determine the potential effects on nutrient or pesticide loss from the fields through the tile drains or from surface runoff.
Download or read book Root Zone Water Quality Model written by Lajpat Ahuja and published by Water Resources Publication. This book was released on 2000 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication comes with computer software and presents a comprehensive simulation model designed to predict the hydrologic response, including potential for surface and groundwater contamination, of alternative crop-management systems. It simulates crop development and the movement of water, nutrients and pesticides over and through the root zone for a representative unit area of an agricultural field over multiple years. The model allows simulation of a wide spectrum of management practices and scenarios with special features such as the rapid transport of surface-applied chemicals through macropores to deeper depths and the preferential transport of chemicals within the soil matrix via mobile-immobile zones. The transfer of surface-applied chemicals (pesticides in particular) to runoff water is also an important component.
Download or read book Land Use Effects on Streamflow and Water Quality in the Northeastern United States written by Avril L. de la Cretaz and published by CRC Press. This book was released on 2007-06-01 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a long-standing need for a desk reference that synthesizes current research, Land Use Effects on Streamflow and Water Quality in the Northeastern United States reviews and discusses the impact of forest management, agriculture, and urbanization. The book provides a gateway to the diverse scientific literature that is urgently needed
Download or read book Managing Agricultural Greenhouse Gases written by Mark Liebig and published by Academic Press. This book was released on 2012-10-16 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global climate change is a natural process that currently appears to be strongly influenced by human activities, which increase atmospheric concentrations of greenhouse gases (GHG). Agriculture contributes about 20% of the world's global radiation forcing from carbon dioxide, methane and nitrous oxide, and produces 50% of the methane and 70% of the nitrous oxide of the human-induced emission. Managing Agricultural Greenhouse Gases synthesizes the wealth of information generated from the GRACEnet (Greenhouse gas Reduction through Agricultural Carbon Enhancement network) effort with contributors from a variety of backgrounds, and reports findings with important international applications. - Frames responses to challenges associated with climate change within the geographical domain of the U.S., while providing a useful model for researchers in the many parts of the world that possess similar ecoregions - Covers not only soil C dynamics but also nitrous oxide and methane flux, filling a void in the existing literature - Educates scientists and technical service providers conducting greenhouse gas research, industry, and regulators in their agricultural research by addressing the issues of GHG emissions and ways to reduce these emissions - Synthesizes the data from top experts in the world into clear recommendations and expectations for improvements in the agricultural management of global warming potential as an aggregate of GHG emissions
Download or read book Farm Drainage in the United States written by George A. Pavelis and published by . This book was released on 1987 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Land Use on Water Quality written by James Lake and published by . This book was released on 1977 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Horse Pasture Management written by Paul H. Sharpe and published by Academic Press. This book was released on 2018-11-09 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Horse Pasture Management begins with coverage of the structure, function and nutritional value of plants, continuing into identification of pasture plants. Management of soil and plants in a pasture is covered next, followed by horse grazing behavior, feed choices of horses, management of grazing horses, and how to calculate how many horses should be grazing relative to land size. Management of hay and silage are included, since year-round grazing is not possible on many horse farms. A number of chapters deal with interactions of a horse farm with the environment and other living things. As an aid in good pasture management, one chapter explains construction and use of fencing and watering systems. Contributions are rounded out with a chapter explaining how the University of Kentucky helps horse farm managers develop their pasture management programs. - The purpose of the book is to help people provide a better life for horses - Provides the basic principles of pasture management for those involved in equine-related fields and study - Covers a variety of strategies for managing the behavior, grouping, environmental, and feeding needs of grazing horses to ensure high levels of welfare and health - Includes information on environmental best practices, plant and soil assessment, and wildlife concerns - Explains pasture-related diseases and toxic plants to be avoided - Includes links to useful resources and existing extension programs
Download or read book Land Use and Water Quality written by Brian Kronvang and published by MDPI. This book was released on 2020-11-18 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of 11 papers introduces broad topics covering various professional disciplines related to the research arena of land use and water quality. The papers exemplify the important links between agriculture and water quality in surface and ground waters as well as the pollution problems around urban areas. Advancement of new technologies for analyzing links between land use and water quality problems as well as insights into new tools for analyzing large monitoring datasets are highlighted in this collection of papers.
Download or read book Nitrogen the Confer N s written by K. van der Hoek and published by Elsevier. This book was released on 2012-12-02 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First International Nitrogen Conference provided an opportunity for researchers and decision-makers to exchange information on environmental pollution by nitrogen compounds on three scales: global, continental/regional and local. The main topics were air, ground water and surface water pollution; emission sources, atmospheric chemistry, deposition processes and effects; disturbance of nitrogen cycles, critical loads and levels; assessments, policy development and evaluation; target groups and abatement techniques; and new approaches leading to an integrated abatement strategy.The peer-reviewed papers from the Conference presented in this volume will provide readers with a comprehensive review of the transport, deposition and impact on ecosystems of nitrogen.
Download or read book Water Quality for Agriculture written by R. S. Ayers and published by . This book was released on 1985 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Flux and Sources of Nutrients in the Mississippi Atchafalaya River Basin written by and published by . This book was released on 1999 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Tracers written by Trevor Elliot and published by MDPI. This book was released on 2018-10-08 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Environmental Tracers" that was published in Water
Download or read book Research and Practices in Water Quality written by Teang Shui Lee and published by BoD – Books on Demand. This book was released on 2015-09-09 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water quality refers to the chemical, physical, biological, and radiological characteristics of water. It is a measure of the condition of water for the purposes intended for. It is most frequently used by reference to a set of standards against which compliance can be assessed. The most common standards used to assess water quality relate to health of ecosystems, safety of human contact and potable drinking water. A range of diverse topics in the field of water quality modelling, statistical evaluation and guidelines pertaining to the best management practices in different locations around the world is given herein. Modelling of water quality in rivers and lakes, statistical methods and membrane filter performance are subject matters of interest considering in-situ water, potable water, water re-use, etc.
Download or read book Emerging Technologies and Management of Crop Stress Tolerance written by Parvaiz Ahmad and published by Academic Press. This book was released on 2014-04-11 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Technologies and Management of Crop Stress Tolerance: Volume 1 - Biological Techniques presents the latest technologies used by scientists for improvement the crop production and explores the various roles of these technologies for the enhancement of crop productivity and inhibition of pathogenic bacteria that can cause disease. This resource provides a comprehensive review of how proteomics, genomics, transcriptomics, ionomics, and micromics are a pathway to improve plant stress tolerance to increase productivity and meet the agricultural needs of the growing human population. This valuable resource will help any scientist have a better understanding of environmental stresses to improve resource management within a world of limited resources. - Includes the most recent advances methods and applications of biotechnology to crop science - Discusses different techniques of genomics, proteomics, transcriptomics and nanotechnology - Promotes the prevention of potential diseases to inhibit bacteria postharvest quality of fruits and vegetable crops by advancing application and research - Presents a thorough account of research results and critical reviews
Download or read book Clean Coastal Waters written by National Research Council and published by National Academies Press. This book was released on 2000-08-17 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Download or read book Understanding the Influence of Nutrients on Stream Ecosystems in Agricultural Landscapes written by Mark D. Munn and published by United States Department of the Interior. This book was released on 2018 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: "National Water-Quality Assessment Project."
Download or read book Environmental Impact of Land Use on Water Quality a Work Plan written by and published by . This book was released on 1973 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
