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Groundwater Radon in the Taiwan Subduction Zone: A Natural Strain-Meter for Earthquake Prediction (Advances in Geological Science)
by Ming-Ching Tom KuoThis book presents the mechanism of in-situ radon volatilization and outlines the geological requisites to site a radon monitoring well for earthquake warning. A small fractured aquifer under undrained conditions is an effective natural strain meter for earthquake prediction. It shows significant merit on a local basis, and most importantly, the analysis can also be applied globally in subduction zones with similar tectonic settings and physical–chemical relationships.Between 2003 and 2010, anomalous declines in groundwater radon concentration were recurrently recorded at Antung, Taiwan, which are considered as precursory to local major earthquakes. The correlations between radon decline and earthquake magnitude are useful for early warning of local main earthquakes. The book consists of 7 chapters. Chapter 1 presents background information and the objectives of the book. Chapter 2 illustrates the methods of monitoring groundwater radon and a brief review of earthquake prediction research using groundwater radon. Chapter 3 provides the details of anomalous decrease in groundwater radon before the Taiwan Mw 6.8 Chengkung Earthquake of 2003. Chapter 4 provides the description of the mechanism of groundwater-radon volatilization. Chapter 5 shows the recurrent anomalous declines in groundwater radon concentration consistently recorded at Antung, Taiwan, prior to local main earthquakes that occurred between 2003 and 2010. Monitoring groundwater radon in small, unconfined fractured aquifers is explained in Chapter 6, followed by an analysis of correlating precursory declines in groundwater radon, precursory time with earthquake magnitudes for small, confined fractured aquifers in Chapter 7.
Groundwater Resource Management Planning Strategies: A Geospatial Approach: Volume 1 (Springer Water)
by Etikala Balaji Vangala Sunitha Bandi Muralidhara Reddy Yenugu Sudharshan Reddy Mannala Prasad Badapalli Pradeep KumarGeospatial tools to Groundwater Resources explain the most recent methods in Geographic Information Systems (GIS) and geostatistics as they apply to groundwater through complete case studies that demonstrate actual remote sensing applications in this field. Due to the rising demand for water, its decreasing quality, and its limited supply, water resource management has grown to be a serious issue. In many places of the world, groundwater is the main supply of fresh water, but certain areas are growing unduly reliant on it, utilising groundwater more quickly than it can be replenished naturally and resulting in an unceasing decrease in water tables. For the efficient use, management, and modelling of this priceless but diminishing natural resource, systematic planning of groundwater consumption using current approaches is crucial. Remote sensing, GIS, GPS (Global Positioning Systems), and geostatistical approaches are among the effective water management methods that have developed with the introduction of powerful and fast personal computers. Now more than ever, it is possible to analyse with greater accuracy the relationships between environmental elements and human health and wellbeing. Our understanding of the continuum between environment and health consequences on many different sizes, from the global to even the individual, has evolved thanks to a number of transdisciplinary accomplishments. This book covers a wide range of geospatial health-related topics and methods, including climate change, healthcare utilisation, health disparities, air quality assessment, asthma, water quality assessment, and machine learning. It also advances scientific understanding, development, and application of geospatial technologies related to water resource management. Researchers and postgraduate students in Earth and Environmental Sciences, particularly GIS, agriculture, hydrology, natural resources, and soil science, who need to be ableto apply the most recent innovations in groundwater research in a practical way will find Case Studies in Geospatial Applications to Groundwater Resources to be a valuable resource. This edited volume will concentrate on the most recent studies and uses of geospatial methods in water resource management, offering insights into the difficulties and possibilities of applying these methods to solve practical issues.
Groundwater Resources Development and Planning in the Semi-Arid Region
by Chaitanya B. Pande Kanak N. MoharirThis book addresses the various challenges in achieving sustainable groundwater development, management, and planning in semi-arid regions, with a focus on India, and discusses advanced remote sensing and GIS techniques for the estimation and management of groundwater resources. The book is timely as there is a need for a better understanding of the various tools and methods required to efficiently and sustainably meet the growing demand for clean surface and groundwater in developing countries, and how these tools can be combined with other strategies in a multi-disciplinary fashion to achieve this goal in water-scarce regions. To wit, the book combines remote sensing and GIS techniques, runoff modeling, aquifer mapping, land use and land cover analyses, evapotranspiration estimation, crop coefficients, and water policy approaches. This will be of use to academics, policymakers, social scientists, and professionals involved in the various aspects of sustainable groundwater development, planning, and management.
Groundwater Sustainability: Conception, Development, and Application (Palgrave Studies in Environmental Sustainability)
by Robert E. MaceThis book will provide a comprehensive discussion of groundwater sustainability, including what it is, how its definition has changed over time, why traditional assessments of it are wrong, how assessments of it are ideally multidisciplinary efforts recognizing that policy is more controlling of outcomes than science, and why achieving it is difficult once pumping exceeds sustainable levels of pumping. The book will provide a nontechnical background of hydrogeology relevant to groundwater sustainability and present several case studies from around the United States and the world. The book has been designed to appeal to academics, students, and practitioners. Academics, particularly those just getting into the subject, will find the book a useful entry in terms of management concepts and political realities of attempting to achieve groundwater sustainability. It will also be useful to academics in that the book will include discussions on the history and development of groundwater sustainability and the practical aspects of aspiring to and achieving sustainable production. Although not a textbook, the book could be used as the basis for teaching a course or as a supplement to a hydrogeology or groundwater management class. Accordingly, the book will include questions and additional reading materials at the end of each chapter. This book will also be useful to practitioners through non-technical explanations of the sciences, discussions of the nuances of defining sustainability in aquifers, and the presentation of case studies where sustainable management has failed and succeeded.
Groundwater Vulnerability Assessment and Mapping using DRASTIC Model
by Prashant Kumar Praveen Thakur Sanjit DebnathThis book shows the effectiveness of DRASTIC model in a geographical setting for validation of vulnerable zones and presents the optimization of parameters for the development of precise maps highlighting several zones with varied contamination. Impact of vadose zone has also been assessed by considering every sub-surface layer. Exclusive title covering effectiveness of DRASTIC model for groundwater vulnerability assessment Reviews of the strengths and limitations of assessment methods Presents multi-criteria evaluation of hydro-geological and anthropogenic factors Discusses integration with geographic information system (GIS) and remote sensing (RS) Includes application of groundwater governance framework with a case study study of a geographical setting
Groundwater Vulnerability and Pollution Risk Assessment (IAH - Selected Papers on Hydrogeology #24)
by Andrzej J. Witkowski Sabina Jakóbczyk-Karpierz Joanna Czekaj Dorota GrabalaThis volume contains 15 selected papers presented at two IAH conferences which were held in Ustroń, Poland in 2015 ("Groundwater Vulnerability - From Scientific Concept to Practical Application" ) and in 2018 ("New Approaches to Groundwater Vulnerability"). The contents of the book is divided in four main parts. In addition to the comparison and validation of different methods of groundwater vulnerability (DRASTIC, GOD, PI, RTt, AVI, SINTACS, COP) the book contains new interesting aspects of vulnerability assessment regarding, for example, evaluation of coastal aquifer vulnerability and aquifer vulnerability to methane gas leakage from shale gas wells. The book also contains the results of studies on factors affecting intrinsic and specific vulnerability assessment (migration of antibiotics and nitrate, groundwater-surface water interaction). An interesting aspect of the book are examples of the different national approaches to groundwater vulnerability mapping (Poland, Ireland, Italy). The book will be very useful for hydrogeologists interested in groundwater vulnerability, experts interested in risk assessment, environmentalists, land use planners, water managers, employees of companies from the environmental industry, regional and local environmental protection councils, and students.
Groundwater Vulnerability: Chernobyl Nuclear Disaster
by Boris Faybishenko Alexander Bohuslavsky Volodymir Bublias Thomas J. Nicholson Vyacheslav ShestopalovThe Chernobyl Nuclear Power Plant (NPP) disaster that occurred in Ukraine on April 26, 1986, was one of the most devastating in human history. Using this as a case study, the AGU monograph Groundwater Vulnerability: Chernobyl Nuclear Disaster is devoted to the problem of groundwater vulnerability, where the results of long-term field and modeling investigations of radionuclide transport in soil and groundwater, within the Ukrainian part of the Dnieper River basin (Kyiv region of Ukraine), are discussed. The authors provide a comprehensive review of existing literature on the assessment of groundwater vulnerability and then describe an improved methodology, which is developed based on integration of the methods of hydrogeological zonation and modeling of anomalously fast migration of radioactive contaminants from the land surface toward groundwater. This volume also includes the evaluation of the effect of preferential and episodic flow on transport of radionuclides toward the aquifers and risk assessment of groundwater vulnerability, which can further assist future researchers in developing remediation technologies for improving drinking water quality. Further, this volume sheds light on the consequences of groundwater contamination from nuclear disasters and assists with assessing the risks associated with contamination and developing effective remediation technologies. Volume highlights include discussions of the following: - Assessment of groundwater vulnerability to contamination from the Chernobyl nuclear disaster - Novel analytical results of the 25-year investigations of groundwater contamination caused by Chernobyl-born radionuclides - The wealth of data on different modes of radioactive transport in the atmosphere, water, and soils, and along the food chains - The hydrogeological and physico-chemical processes and factors in groundwater contaminated zones - The applicability of commonly used methods of the evaluation of groundwater vulnerability - A unique method of fluid dynamics that involves an anomalously fast migration of contaminants through zones of preferential flow from the land surface toward groundwater - Building confidence in the assessment of migration pathways of radionuclides in the biosphere - Assessment and prediction of the consequences of the nuclear accident, which can shed light on protection from global nuclear accidents - Analogue information for different nuclear waste disposal and environmental projects around the world
Groundwater and Ecosystems
by António Chambel Luís Ribeiro Tibor Y. Stigter M. Teresa Condesso de Melo José Paulo Monteiro Albino MedeirosGroundwater resources are facing increasing pressure from consuming and contaminating activities. There is a growing awareness that the quantitative and qualitative preservation of groundwater resources is a global need, not only to safeguard their future use for public supply and irrigation, but also to protect those ecosystems that depend partial
Groundwater and Society: Applications of Geospatial Technology
by Gouri Sankar Bhunia Pravat Kumar Shit Partha Pratim Adhikary Ch. Jyotiprava DashThis volume advances the scientific understanding, development, and application of geospatial technologies related to groundwater resource management, mapping, monitoring, and modelling using up-to-date remote sensing and GIS techniques. The book further provides a critical analysis of the debates and discourses surrounding groundwater resources and society, illustrates the relationship between groundwater resources and precision agriculture for societal development, and describes novel, region-specific management strategies and techniques for sustainability with case studies. The book is organized into three parts: (I) Groundwater resources and societal development; (II) Groundwater availability, quality and pollution; and (III) Sustainable groundwater resources management. Each section begins with a short introduction that includes an overview of the papers in that section. Individual chapters focus on the core themes of research and knowledge along with some topics that have received lesser attention. The book will be of interest to water resource planners and decision-makers, academic researchers, policy makers, NGOs, and academic researchers and students in Geography, Geophysics, Hydrology, Remote Sensing & GIS, Agriculture, Soil Science, and Agronomy.
Groundwater and Subsurface Environments
by Makoto TaniguchiExcessive groundwater pumping, groundwater contamination, and subsurface thermal anomalies have occurred frequently in Asian coastal cities, greatly disturbing the urban aquifer and the subsurface environment. In this volume, the relationship between the stage of a city's development and subsurface environment issues have been explored. Intensive field surveys were done in Tokyo, Osaka, Seoul, Taipei, Bangkok, Jakarta, and Manila. New, advanced methods, including satellite, tracer techniques, and the social economy model, were developed to evaluate subsurface conditions. Groundwater storage and groundwater recharge rates, as well as the accumulation and transport of pollutants, have been compiled as integrated indices of natural capacities under climate and social changes, and used to evaluate the vulnerability risk for all cities. The indices have been made on a yearly basis for seven cities for a century (1900-2000). Using these indicators it is now possible to manage groundwater resources in a sustainable fashion. This volume is indispensable to researchers in hydrology, coastal oceanography, civil engineering, urban geography, social economy, climatology, geothermics, and urban management.
Groundwater and Water Quality: Hydraulics, Water Resources and Coastal Engineering (Water Science and Technology Library #119)
by Vijay P. Singh Ramakar Jha Vivekanand Singh L. B. Roy Roshni ThendiyathThis book deals with topics of current interest, such as climate change, floods, drought, and hydrological extremes. The impact of climate change on water resources is drawing worldwide attention these days, for water resources in many countries are already stressed and climate change along with burgeoning population, rising standard of living, and increasing demand are adding to the stress. Further, river basins are becoming less resilient to climatic vagaries. Fundamental to addressing these issues is hydrological modelling which is covered in these books. Further, integrated water resources management is vital to ensure water and food security. Integral to the management is groundwater and solute transport. The books encompass tools that will be useful to mitigate the adverse consequences of natural disasters. This book provides many new and innovative methods to assess groundwater and estimate water pollution. Groundwater recharge, solute transport, ground water modelling are some of the important variable used to estimate the groundwater movement, hydraulic gradient and pollution movement. The water quality is another important variable of river Ganga and its tributaries in India and other rivers over the globe.
Groundwater around the World: A Geographic Synopsis
by Jean Margat Jac van GunThis book presents a unique and up-to-date summary of what is known about groundwater on our planet, from a global perspective and in terms of area-specific factual information. Unlike most textbooks on groundwater, it does not deal with theoretical principles, but rather with the overall picture that emerges as a result of countless observations,
Groundwater as a Geomorphic Agent: Binghamton Geomorphology Symposium 13 (Routledge Library Editions: Geology #18)
by R. G. LafleurThis book, first published in 1984, has both a geomorphic and a hydrologic message. It examines and analyses the role of groundwater in landscapes in a series of articles by authors of diverse backgrounds and experience.
Groundwater as a Key for Adaptation to Changing Climate and Society
by Makoto Taniguchi Tetsuya HiyamaThe book presents an overview of recent advances in knowledge related to the assessment and management of groundwater resources, giving special attention to the uncertainties related to climate change and variability. While proposing strategies of groundwater management as adaptation, alternative and resilience under the changing environments, this book also discusses new directions and initiatives of hydrological study, in particular on the groundwater. Groundwater is a major source of water across much of the world, and acts as a component of the global water cycle on the Earth. Groundwater has the capacity to balance large swings in precipitation and has the potential to supplement surface-water resources when they are close to the limits of sustainability such as during drought. Although groundwater is pivotal to sustain water supplies, these important resources are vulnerable to increased human activities and the uncertain consequences of climate change. This book presents that groundwater with longer resident time of water circulation can be an alternative water resources and environment in changing climate. Assessments of groundwater services and benefit as well as risk are important for sustainable groundwater uses under the climate change. Groundwater which is one of the leys of adaptation to climate change should be treated as common resources and environment beyond the tragedy of the commons and dilemma of the boundaries. While providing a comprehensive description of hydrogeological characteristics of groundwater systems, the present volume also covers important aspects of legal and institutional contexts required for groundwater resources management as well as social and economic considerations. This publication may contribute to an improved understanding of the impacts of climate change and human activity on groundwater resources, provides useful guidance for policy makers and planners to include groundwater into climate change adaptation schemes and strategies.
Groundwater in Arid and Semi-Arid Areas: Monitoring, Assessment, Modelling, and Management (Earth and Environmental Sciences Library)
by Shakir Ali Asaad Mater ArmanuosThis book provides comprehensive studies from Middle East, African countries and Asia including Afghanistan, Algeria, Egypt, India, Iraq, Kyrgyzstan, Tunisia and Turkey on groundwater management, modelling and monitoring. A broad approach such as modelling, artificial intelligence, machine learning, and statistical models was applied in arid and semi-arid areas for management of the groundwater. These new approaches are currently in high demand. The book delves into the applications of these methods and will be a potential asset to the researchers worldwide. The book is a timely publication containing chapters based on primary data or/and extensive review chapters comprising new emerging techniques. Current high-demand research on management through the application of modelling, artificial intelligence and machine learning is the main selling point of this book.
Groundwater in Developing Countries: Case Studies from MENA, Asia and West Africa (Springer Water)
by Abdelazim Negm Shakir AliThis book comprehensively discusses different scientific approaches, including groundwater sustainability, numerical modeling, index approach, isotope hydrology, environmental Isotopes, and advanced GRACE satellite data from different regions in developing countries globally, to help understand the groundwater system for strategic management of freshwater resources. This would help estimate an accepted logistic framework that might help control, and evaluate the significance of predicted climatic and anthropogenic impacts on groundwater resources. The book presents and discusses unique case studies from Asia (Turkey, Afghanistan, and Kyrgyzstan), MENA (Middle East and North Africa), particularly focussing on Algeria, Egypt New Delta, and KSA and West Africa (Nigeria) and has chapters covering most of the other MENA countries. The book presents a comprehensive investigation of the methods employed for groundwater utilization, with a dual focus on elucidating existing issues and confronting contemporary challenges. The findings are significant as they provide a deeper understanding of the complex issues surrounding groundwater utilization. Approaches for enhancing and rationalizing water extraction from Saharan aquifers are discussed to promote regional advancement and preserve long-term sustainability. The book will be of great help to numerous researchers and academicians, and will be an important account for stakeholders.
Groundwater in Egypt’s Deserts (Springer Water)
by Abdelazim Negm Ahmed ElkhoulyThis book brings together contributions from groundwater researchers and scientists on underground water resources in Egypt's deserts. The aquifers' quantity and quality are evaluated in many regions of the Egyptian deserts using established methods that can be effectively employed to investigate the potential for sustainable development in Egypt and similarly arid countries. The water resources in Egypt's deserts are subject to deterioration, mainly by land salinization and water deficiency.This book presents the best management practices, water quantity and quality, and optimal and sustainable usage of available groundwater. The book offers a unique guide for all readers interested in groundwater, modeling, and assessment for sustainable development in Egypt and countries with similar weather and water conditions.
Groundwater in Ethiopia
by Seifu KebedeThis book provides a comprehensive description of groundwater resources in Ethiopia and its various dimensions (groundwater as resource, environmental functions, and socioeconomics). The prevailing knowledge of groundwater resources in Ethiopia (or elsewhere in Sub Saharan Africa) was based on geological and stratigraphic framework known nearly four decades ago (mainly 1960's and 70's). Thanks to the substantial geoscientific research since the 70's a new set of relevant geological/stratigrahpic data has been created that helps to re-define our understanding of groundwater resources in Africa as a whole and in Ethiopia in particular: a) For the first time the basement aquifer of Ethiopia has been described hydrogeologically based on genesis of regoliths (deep weathering and striping history); clear regional difference in groundwater potential is shown for the first time; comparative accounty has been given regarding groundwater occurrence in the generally low grade basement rocks of Ethiopia (Arabian Nubian shield) and high grade basement rocks of the rest of Africa. b) For the first time groundwater occurrence in multilayred sedimentary rocks account for spatial variation in degree of karstification; deformation history, and stratigraphy. c) The vast volcanic aquifers of Ethiopia which have previously classified based on their ages are now reclassified based on age, morphology (eg. groundwater in plateau volcanics, groundwater in shield volcanics) and aquifer structure. d) The loose alluvio lacustrine sediments which were known as least extensive in previous works based on areal cover are in fact shown to host the most voluminous groundwater resources in Ethiopia. These aquifers have now been described based on their geomorphology, extent, and genesis. The aim of this book is to use these newly created knowledge to redefine the understanding of groundwater resources in Ethiopia.
Groundwater in Ethiopia: Features, Numbers and Opportunities (Springer Hydrogeology)
by Seifu KebedeThis book provides a comprehensive description of groundwater resources in Ethiopia and its various dimensions (groundwater as resource, environmental functions, and socioeconomics). The prevailing knowledge of groundwater resources in Ethiopia (or elsewhere in Sub Saharan Africa) was based on geological and stratigraphic framework known nearly four decades ago (mainly 1960's and 70's). Thanks to the substantial geoscientific research since the 70's a new set of relevant geological/stratigrahpic data has been created that helps to re-define our understanding of groundwater resources in Africa as a whole and in Ethiopia in particular: a) For the first time the basement aquifer of Ethiopia has been described hydrogeologically based on genesis of regoliths (deep weathering and striping history); clear regional difference in groundwater potential is shown for the first time; comparative accounty has been given regarding groundwater occurrence in the generally low grade basement rocks of Ethiopia (Arabian Nubian shield) and high grade basement rocks of the rest of Africa. b) For the first time groundwater occurrence in multilayred sedimentary rocks account for spatial variation in degree of karstification; deformation history, and stratigraphy. c) The vast volcanic aquifers of Ethiopia which have previously classified based on their ages are now reclassified based on age, morphology (eg. groundwater in plateau volcanics, groundwater in shield volcanics) and aquifer structure. d) The loose alluvio lacustrine sediments which were known as least extensive in previous works based on areal cover are in fact shown to host the most voluminous groundwater resources in Ethiopia. These aquifers have now been described based on their geomorphology, extent, and genesis. The aim of this book is to use these newly created knowledge to redefine the understanding of groundwater resources in Ethiopia.
Groundwater in the Arab Middle East
by Wolfgang WagnerThe book gives an outline of prevailing hydrogeologic conditions in the Arab Middle East together with the geologic background. Emphasis is given to relationships between the main features influencing the hydrogeologic conditions - regional geologic developments, paleogeographic conditions, morphology, climate and paleo-climate - and the resulting hydrogeologic features: formation of aquifers, distribution of major aquifers, main groundwater flow systems, occurrence of renewable and fossil groundwater. Reported data on hydraulic aquifer parameters, recharge rates and groundwater flow volumes are evaluated with a view to arrive at characteristic values under the specific hydrogeologic and climatic conditions. The area considered covers approximately the Arabian Plate. Information on the following countries is included: Bahrain, Iraq, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates, West Bank and Gaza, Yemen.
Groundwater in the Coastal Zones of Asia-Pacific
by Christoph WetzelhuetterGroundwater management and conservation becomes a more and more important issue in the heavily urbanized coastal zones of the Asia-Pacific region. This volume presents a comprehensive overview of the status of coastal groundwater research in this diverse region. It includes latest methodologies and technologies to assess processes associated with coastal groundwater development. Case studies and local examples from a broad geographical range of continental shoreline and island settings give an understanding of the diversity of coastal aquifers and the groundwater recourses they harbour. Audience: By providing a clearer understanding of the hydrogeological and hydrochemical processes, this volume offers a critical tool to coastal researchers, geoscientists in related fields, water engineers, groundwater managers and decision makers as it illustrates the human and environmental impacts on coastal groundwater resources and the relationship to coastal zone management strategies and the development of sustainable management approaches.
Groundwater in the Nile Delta (The Handbook of Environmental Chemistry #73)
by Abdelazim M. NegmThis unique volume offers an up-to-date overview of all the main aspects of groundwater in the Nile Delta and its fringes, as well as latest research findings. The themes covered include: · Nile Delta aquifer formation and its characteristics · The use of the groundwater in the Nile Delta and its implications · Sedimentology and hydrogeophysical characteristics · Groundwater investigations and aquifer characterization using current direct resistivity and induced polarization · Groundwater contamination and degradation · Saltwater intrusion and its control · Delineation of groundwater flow and seawater intrusion using various techniques, including one-dimensional subsurface temperature profiles, geoelectrical resistivity, and integrated subsurface thermal regime and hydrogeochemical data · Modeling of groundwater and of saltwater intrusion in the Nile Delta aquifer · Excessive pumping and groundwater quality assessment for irrigation and drinking purposes · Groundwater management for sustainability in the Nile Delta. The volume appeals to postgraduate students, researchers, scientists, professionals, decision makers and planners.
Groundwater of South Asia (Springer Hydrogeology Ser.)
by Abhijit MukherjeeThis book presents recent findings from the South Asian region (SA), broadly including groundwater studies on (a) quantity, (b) exploration, (c) quality and pollution, (d) economics, management and policies, (e) groundwater and society, and (f) sustainable sources. It offers a compilation of compelling, authentic insights into groundwater scenarios throughout the water-stressed South Asia region. Comprising Afghanistan, Bangladesh, Bhutan, India, Myanmar, Nepal, Pakistan, and Sri Lanka, it is the most densely populated region in the world: It occupies approximately 4% of the global land area but supports more than 25% of the global population. The SA region now faces an acute shortage of fresh water due to a rapid rise in water demand and changes in societal water-use patterns. Combining essential advances and perspectives, this book offers a valuable resource for all scientists, planners and policymakers who are interested in understanding and developing the SA and other related areas.
Groundwater overexploitation in the North China Plain: A path to sustainability (Springer Water)
by Lu Wang Ning Li Yu Li Wolfgang Kinzelbach Haijing WangOver-pumping of aquifers is a worldwide problem, mainly caused by agricultural water use. Among its consequences are the falling dry of streams and wetlands, soil subsidence, die-off of phreatophytic vegetation, saline water intrusion, increased pumping cost and loss of storage needed for drought relief. Stopping or reversing the trend requires management interventions. The North China Plain serves as an example. A management system is set up for a typical county. It contains three components: monitoring, decision support based on modelling, and implementation in the field. Besides all monitoring data, the decision support module contains an irrigation calculator, a box model, and a distributed groundwater model to project the outcomes of different water allocation scenarios. In view of grain security, a solution combines an adaptation of the cropping system with imports of surface water from the South. The Open Access book does not only describe the problem and the path to its solution. It also gives access to nine manuals concerning methods used. They include computer programs and the game Save the Water. The Chinese experience should be of considerable interest to other regions in the world which suffer from over-pumping of aquifers.
Group Theoretical Methods in Physics. Volume II: Proceedings of the Third Yurmala Seminar, Yurmala, USSR, 22-24 May 1985
by M. A. Markov V. I. Man'Ko V. V. DodonovThese Proceedings cover various topics in modern physics in which group theoretical methods can be applied effectively. The two volumes, containing over 100 papers, cover such areas as representation theory, the theory and applications of dynamical symmetries and coherent states, symmetries in atomic, molecular, nuclear and elementary particle physics, field theory including gauge theories, supersymmetry and supergravity, general relativity and cosmology, the theory of space groups and its applications to solid state physics and phase transitions, the problems of quantum and classical mechanics and paraxial optics, and the theory of nonlinear equations and solitons.