Download or read book Influence of Land Use on Nitrate Movement Through Soil Profiles in Paparua County written by John Arthur Adams and published by . This book was released on 1981 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Impact of Land Use on Nitrate N Movement and Storage in the Vadose Zone of the Hastings WHPA written by Craig J. Adams and published by . This book was released on 2018 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nebraska has one of the largest agricultural economies in the United States and relies heavily on irrigation and fertilizer application to maintain crop yields. Over-irrigation and continuous application of nitrogen (N) in many areas has led to accumulation of nitrate-N in soils and sediments throughout the state's vadose zone. Because nitrate-N is both persistent and mobile, groundwater concentrations in many areas of Nebraska and other agriculturally intensive states are increasing. Nitrate-N contamination of public and private drinking water supplies that utilize groundwater are of particular concern. Vadose zone sampling is an important method for rapidly assessing the effect of changing land use on potential groundwater contamination. In the current project, the occurrence and movement of nitrate-N was investigated using deep vadose zone soil cores collected from urban and irrigated farmland in the Hastings, NE Well Head Protection Area (WHPA) and compared to a previous study done at the same locations (R. Spalding & Toavs, 2011). Sampling previously collected sites allows for direct comparisons of current and historical nitrate-N profiles, potential movement, and can provide a method for evaluating effects of changing land use at the surface. Cumulative nitrate-N in the top 65 ft for urban irrigated lawns, pivot irrigated farmland, and gravity irrigated farmland had an average of 320, 540, and 700 total lbs-N/acre respectively. In farmland where irrigation changed from gravity to pivot application there was an average reduction of 170 lbs-N/acre in the top 55 ft of the profile over a five-year time span. This observation supports the use of sprinkler irrigation for more uniform water application, reducing potential leaching at the head and tail rows of gravity irrigated fields. While future studies are still needed, the importance of vadose zone monitoring in evaluating and protecting groundwater is beneficial in determining connections between surface activities and the underlying groundwater..
Download or read book Australian Journal of Soil Research written by and published by . This book was released on 2001 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water and Choice in Canterbury written by Kenneth L. Leathers and published by . This book was released on 1983 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwaters of New Zealand written by Michael R. Rosen and published by . This book was released on 2001 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwaters of New Zealand is the definitive new source for information on the groundwater resources of New Zealand. Written by many of New Zealand's leading experts, the book covers varied aspects of groundwater research, assessment, use, and management in New Zealand. This book is divided into two parts. The first part documents the history of groundwater development in New Zealand, and current research on interactions between groundwater systems and other components of the hydrological cycle such as health, processes (recharge and groundwater-surface water interaction) and techniques (isotopic methods). The second part of the book provides up-to-date regional summaries of groundwater resources and quality in every region of the country. Groundwater quality is explored in chapters on groundwater chemistry and microbiology, and the health aspects of groundwater. The book also contains detailed regional summaries, covering the location, use, quality, and management of groundwater resources, for the entire country.This book will be the essential reference text for all environmental, engineering, and resource management professionals working with groundwater, and students of the many scientific and engineering disciplines that contribute to groundwater investigations. Many groundwater users, both practicing and in school will find this book a valuable reference that adds significantly to their understanding of groundwater resources.-back cover.
Download or read book New Zealand Agricultural Science written by and published by . This book was released on 1982 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils and Fertilizers written by and published by . This book was released on 1979-07 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Karst Hydrogeology and Geomorphology written by Derek Ford and published by John Wiley & Sons. This book was released on 2013-05-03 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1989, Karst Geomorphology and Hydrology became the leading textbook on karst studies. This new textbook has been substantially revised and updated. The first half of the book is a systematic presentation of the dissolution kinetics, chemical equilibria and physical flow laws relating to karst environments. It includes details of the many environmental factors that complicate their chemical evolution, with a critique of measurement of karst erosion rates. The second half of the book looks at the classification system for cave systems and the influence of climate and climatic change on karst development. The book ends with chapters on karst water resource management and a look at the important issues of environmental management, including environmental impact assessment, environmental rehabilitation, tourism impacts and conservation values. Practical application of karst studies are explained throughout the text. "This new edition strengthens the book's position as the essential reference in the field. Karst geoscientists will not dare to stray beyond arm's reach of this volume. It is certain to remain the professional standard for many decades." Journal of Cave and Karst Studies, August 2007
Download or read book The New Zealand Official Year book written by New Zealand. Department of Statistics and published by . This book was released on 1925 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The European Nitrogen Assessment written by Mark A. Sutton and published by Cambridge University Press. This book was released on 2011-04-14 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the first continental-scale assessment of reactive nitrogen in the environment, this book sets the related environmental problems in context by providing a multidisciplinary introduction to the nitrogen cycle processes. Issues of upscaling from farm plot and city to national and continental scales are addressed in detail with emphasis on opportunities for better management at local to global levels. The five key societal threats posed by reactive nitrogen are assessed, providing a framework for joined-up management of the nitrogen cycle in Europe, including the first cost-benefit analysis for different reactive nitrogen forms and future scenarios. Incorporating comprehensive maps, a handy technical synopsis and a summary for policy makers, this landmark volume is an essential reference for academic researchers across a wide range of disciplines, as well as stakeholders and policy makers. It is also a valuable tool in communicating the key environmental issues and future challenges to the wider public.
Download or read book Karst Geomorphology and Hydrology written by Derek C. Ford and published by . This book was released on 1989 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Science written by Ronald G. McLaren and published by Oxford University Press, USA. This book was released on 1996 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is one of New Zealand's greatest resources. This new edition of this well-established book introduces the basic soil science theory which is essential for the proper use and maintenance of this resource. it places greater emphasis on sustainable production and environmental protection and incorporates the new soil classification system. Pedology, soil chemistry and fertility, soil physics and soil management are all covered. Each subject has been placed in a New Zealand context and many specific New Zealand examples are given. Soil science theory is linked with practical soil management and fertiliser recommendation procedures. The influence of soils on environmental quality is described an emphasis placed on the soil condition affecting plant growth.
Download or read book The Ecology and Management of Aquatic terrestrial Ecotones written by Robert J. Naiman and published by Bernan Press(PA). This book was released on 1990 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long Term Farming Systems Research written by Gurbir Bhullar and published by Academic Press. This book was released on 2020-06-03 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-Term Farming Systems Research: Ensuring Food Security in Changing Scenarios presents the legacy and heritage of Long-Term Experiments (LTEs) in Agriculture while also addressing the challenges and potential solutions. The book discusses how LTEs form an important asset in understanding agriculture's significant influence on life on earth. As global governments and development agencies try to achieve the Global Sustainable Development Goals (SDGs) of the United Nations, this book's content is of unprecedented importance, providing insights into the interactions of agricultural production with ecological, economic and societal aspects. In this regard, this book offers a thorough resource of information based on experiences from various ongoing LTEs in different parts of the world. The contextual variety and geographic diversity presented in this book makes it useful for agricultural and environmental scientists, as well as students and educators in such fields. --- From the Editors: "Thanks to the excellent panel of our contributing authors, in this book, we have attempted to offer the widest possible thematic and geographical coverage on LTEs. Experts from different institutions leading LTEs across the globe have provided their perspectives on different aspects of LTEs, not only highlighting the unique knowledge contribution of LTEs, but also discussing the unique challenges of effectively managing LTEs and maintaining their relevance to changing scenarios. We hope that this book will offer something for everyone interested in the history, present and future of our agroecosystem." Provides a comprehensive resource of information generated in various LTEs across the globe, with a focus on various aspects of farming systems, crop management practices, plant, soil and human nutrition as well as on capacity development Presents a holistic view on interactions of agricultural production and its relationship to the environment and society Identifies challenges and lessons learned from different LTEs and provides recommendations for potential solutions
Download or read book Polluted Inheritance written by Mike Joy and published by . This book was released on 2015 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Evidence presented here by ecologist Mike Joy demonstrates that intensive dairy farming has degraded our freshwater rivers, streams and lakes to such a degree that we face an environmental crisis. This perilous situation, he argues, has arisen primarily through governmental policy that prioritises short-term economic growth over long-term environmental sustainability"--Publisher information.
Download or read book The British World written by Carl Bridge and published by Psychology Press. This book was released on 2003 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of essays is based upon the assumption that the British Empire was held together not merely by ties of trade and defence, but by a shared sense of British identity that linked British communities around the globe. Focusing on the themes of migration, identity and the media, this book is an exploration of these and other interconnected themes that help define the British World of the late 19th and 20th centuries.
Download or read book Karst Hydrogeology written by Petar T. Milanović and published by Water Resources Publications, LLC. This book was released on 1981 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
