Download or read book Recharge Estimation from Return Flow on Irrigated Land in the Assiniboine Delta Aquifer written by Xueke Jia and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Assiniboine Delta Aquifer (ADA) is the largest unconfined aquifer and the main water supply for agricultural production in Manitoba, Canada. Groundwater has a critical role in irrigated agriculture to ensure food security, and aquifer recharge is a key to groundwater management. While aquifers are primarily recharged from rainfall and surface sources, return flow from irrigation water can recharge during cropping seasons. The previous studies on the ADA used the water budget method to estimate the recharge but not return flow through irrigation. In this study, both the groundwater recharge and return flow through irrigation water to the ADA were estimated numerically by using HYDRUS-1D. The data were retrieved from soil sensors and weather stations installed at each selected site. This study used three stations on cropland, and three on pastureland. The soil properties used to construct the numerical models were determined by laboratory experiments and retrieved from the Canada-Manitoba Crop Diversification Centre (CMCDC). The numerical models were calibrated by altering the van Genuchten-Mualem (VGM) parameters to match the observed and estimated soil water content. This modelling step was carried out by coupling HYDRUS-1D with Pareto Archived Dynamically Dimensioned Search (PA-DDS) using MATLAB. The results of this research showed that the estimated groundwater recharge based on simulations for the 2019 and 2020 cropping seasons was significantly higher than reported in previous studies and that the return flow on the irrigated cropland positively impacted the groundwater recharge. Return flow was higher in 2019 which was considered a normal year and reduces strongly in the dry year of 2020. The outcomes would be beneficial for new water licensing, an increase in agricultural production, and more importantly, sustainable groundwater management of the Assiniboine Delta Aquifer by limiting the environmental impact from the irrigation withdrawals .
Download or read book Economic value of groundwater in the Assiniboine delta aquifer in Manitoba written by S.N. Kulshreshtha and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Value of Groundwater in the Assiniboine Delta Aquifer in Manitoba written by Canada. Inland Waters Directorate and published by . This book was released on 1992 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater and Its Susceptibility to Degradation written by and published by . This book was released on 2003-01-01 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication provides an overview of groundwater occurrence and of the main issues affecting its quantity and quality. We see how the resource is used in our cities, in industry and mining, in agriculture and rural water supply; how it sustains many of our wetlands; how in its own undramatic way groundwater has become an integral part of billions of people's lives.
Download or read book The Health of Our Water written by D. R. Coote and published by Research Branch Agriculture and Agri-Food Canada. This book was released on 2000 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a variety of research findings and case studies, this publication provides a broad picture of water quality and quantity in Canada as they are affected by agriculture and as they affect agriculture itself. The first part contains background on the water cycle, water supplies in Canada, agriculture & other rural uses of water, and issues related to water quality. The second part describes what is currently known about the health of Canada's rural surface water and groundwater, and the implications for natural ecosystems. The third part describes responses to the various issues of water quality & quantity, citing farming practices and regulatory tools, among other measures. The final part discusses how the growth of agriculture may be limited by issues related to water and how the future might proceed. Includes glossary.
Download or read book Earthquakes and Water written by Chi-yuen Wang and published by Springer. This book was released on 2010-01-11 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the graduate course in Earthquake Hydrology at Berkeley University, this text introduces the basic materials, provides a comprehensive overview of the field to interested readers and beginning researchers, and acts as a convenient reference point.
Download or read book Groundwater Resource Evaluation written by William Clarence Walton and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology and Management of Wetlands written by Donal D. Hook and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of a symposium held at the College of Charleston, Charleston, South Carolina, USA, 16-20 June 1986. The seed for this symposium arose from a group of physiologists , soU scientists and biochemists that met in Leningrad, USSR in July 1975 at the 12th Botanical Conference in a Session organized by Professor B.B. Vartepetian. This group and others later conspired to contribute to a book entitled Plant Life in Anaerobic Environments (eds. D. D. Hook and R. M. M. Crawford, Ann Arbor Science, 1978). Several contributors to the book suggested in 1983 that a broad-scoped symposium on wetlands would be useful (a) in facilitating communication among the diverse research groups involved in wetlands research (b) in bringing researchers and managers together and (c) in presenting a com prehensive and balanced coverage on the status of ecology ami management of wetlands from a global perspective. With this encouragement, the senior editor organized a Plan ning Committee that encompassed expertise from many disciplines of wetland scientists and managers. This Committee, with input from their colleagues around the world, organized a symposium that addressed almost every aspect of wetland ecology and management.
Download or read book Beavers Boreal Ecosystem Engineers written by Carol A. Johnston and published by Springer. This book was released on 2017-08-28 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the fields of ecosystem science and landscape ecology, this book integrates Dr. Carol Johnston's research on beaver ecosystem alteration at Voyageurs National Park. The findings about the vegetation, soils, and chemistry of beaver impoundments synthesized in the text provide a cohesive reference useful to wetland scientists, ecosystems and landscape ecologysts, wildlife managers, and students. The beaver, Castor canadensis, is an ecosystem engineer unequaled in its capacity to alter landscapes through browsing and dam building, whose population recovery has re-established environmental conditions that probably existed for millenia prior to its near extirpation by trapping in the 1800s and 1900s. Beavers continue to regain much of their natural range throughout North America, changing stream and forest ecosystems in ways that may be lauded or vilified. Interest in beavers by ecologists remains keen as new evidence emerges about the ecological, hydrological, and biogeochemical effects of beaver browsing and construction. There is a critical need for ecologists and land managers to understand the potential magnitude, persistence, and ecosystem services of beaver landscape transformation. The 88-year record of beaver landscape occupation and alteration documented by Dr. Carol Johnston and colleagues from aerial photography and field work provides a unique resource toward understanding the ecosystem effects and sustainability of beaver activity.
Download or read book Anthropogenic Aquifer Recharge written by Robert G. Maliva and published by Springer. This book was released on 2019-05-07 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is an overview of the diversity of anthropogenic aquifer recharge (AAR) techniques that use aquifers to store and treat water. It focusses on the processes and the hydrogeological and geochemical factors that affect their performance. This book is written from an applied perspective with a focus of taking advantage of global historical experiences, both positive and negative, as a guide to future implementation. Most AAR techniques are now mature technologies in that they have been employed for some time, their scientific background is well understood, and their initial operational challenges and associated solutions have been identified. However, opportunities exist for improved implementation and some recently employed and potential future innovations are presented. AAR which includes managed aquifer recharge (MAR) is a very important area of water resources management and there is no recent books that specifically and comprehensively addresses the subject.
Download or read book Hydrogeology of Crystalline Rocks written by I. Stober and published by Springer Science & Business Media. This book was released on 1999-12-31 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogeology of Crystalline Rocks deals with deep groundwater in the granite and gneiss basement of the continents. It has become evident during the past years that highly mineralized water is present in an interconnected fracture network of the basement. Thus, the upper part of the crust of the continents can be viewed as an aquifer and investigated with tools common in hydrogeology. This book presents accounts on water-conducting features of crystalline rocks and summarizes the hydraulic properties of the basement. The volume includes reviews, new data and research on the often remarkable chemical composition of deep groundwater. Microbial processes in the deep basement aquifer are probably more important than previously thought. Two contributions focus on this recent extension of research of the biosphere to greater depth in the Earth. This book represents the first multidisciplinary and integrated account of deep groundwater hydrology in crystalline basement. It is of interest to hydrologists and hydrogeologists working with water in crystalline rocks, but also to solid earth geophysicists, geochemists and petrologists with an interest in fluids in the crust. Scientists involved in nuclear waste disposal programs and geothermal energy development will find a wealth of stimulating ideas in this volume.
Download or read book Geodiversity written by Murray Gray and published by John Wiley & Sons. This book was released on 2004-06-25 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: A counterpoint to biodiversity, geodiversity describes the rocks, sediments, soils, fossils, landforms, and the physical processes that underlie our environment. The first book to focus exclusively on the subject, Geodiversity describes the interrelationships between geodiversity and biodiversity, the value of geodiversity to society, as well as current threats to its existence. Illustrated with global case studies throughout, the book examines traditional approaches to protecting biodiversity and the new management agenda which is starting to be used instead.
Download or read book Physical Geology written by Steven Earle and published by . This book was released on 2016-08-12 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a discount Black and white version. Some images may be unclear, please see BCCampus website for the digital version.This book was born out of a 2014 meeting of earth science educators representing most of the universities and colleges in British Columbia, and nurtured by a widely shared frustration that many students are not thriving in courses because textbooks have become too expensive for them to buy. But the real inspiration comes from a fascination for the spectacular geology of western Canada and the many decades that the author spent exploring this region along with colleagues, students, family, and friends. My goal has been to provide an accessible and comprehensive guide to the important topics of geology, richly illustrated with examples from western Canada. Although this text is intended to complement a typical first-year course in physical geology, its contents could be applied to numerous other related courses.
Download or read book Hydrological Chemical and Biological Characteristics of a Prairie Pothole Wetland Complex Under Highly Variable Climate Conditions written by Thomas C. Winter and published by Geological Survey (USGS). This book was released on 2003 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Water Pollution Control Benefits and Costs written by Samuel G. Unger and published by . This book was released on 1974 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seawater Intrusion in Coastal Aquifers written by Jacob Bear and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal aquifers serve as major sources for freshwater supply in many countries around the world, especially in arid and semi-arid zones. Many coastal areas are also heavily urbanized, a fact that makes the need for freshwater even more acute. Coastal aquifers are highly sensitive to disturbances. Inappropriate management of a coastal aquifer may lead to its destruction as a source for freshwater much earlier than other aquifers which are not connected to the sea. The reason is the threat of seawater intrusion. In many coastal aquifers, intrusion of seawater has become one of the major constraints imposed on groundwater utilization. As sea water intrusion progresses, existing pumping wells, especially those close to the coast, become saline and have to be abandoned. Also, the area above the intruding seawater wedge is lost as a source of natural replenishment to the aquifer. Despite the importance of this subject, so far there does not exist a book that integrates our present knowledge of seawater intrusion, its occurrences, physical mechanism, chemistry, exploration by geo physical and geochemical techniques, conceptual and mathematical modeling, analytical and numerical solution methods, engineering measures of combating seawater intrusion, management strategies, and experience learned from case studies. By presenting this fairly comprehensive volume on the state-of-the-art of knowledge and ex perience on saltwater intrusion, we hoped to transfer this body of knowledge to the geologists, hydrologists, hydraulic engineers, water resources planners, managers, and governmental policy makers, who are engaged in the sustainable development of coastal fresh ground water resources.
Download or read book Agroforestry The Future of Global Land Use written by P.K. Ramachandran Nair and published by Springer Science & Business Media. This book was released on 2012-08-22 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains a solid body of the current state of knowledge on the various themes and activities in agroforestry worldwide. It is organized into three sections: the Introduction section consists of the summaries of six keynote speeches at the 2nd World Congress of Agroforestry held in Nairobi, Kenya, in 2009; that is followed by two sections of peer-reviewed thematic chapters grouped as “Global Perspectives” (seven chapters) and “Regional Perspectives” (eleven chapters), authored by professional leaders in their respective agroforestry-related fields worldwide. A total of 130 professionals from institutions in 33 countries in both developing and the industrialized temperate regions of the world contributed to the book as chapter authors and/or reviewers. Thus, the book presents a comprehensive and authoritative account of the global picture of agroforestry today.
