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Water resources stored by dams and reservoirs play an essential role in water resource management, hydropower and flood control. Where there is an extensive network of dam infrastructures, dams have made a major contribution to economic and social development, providing considerable storage capacity per capita. However, dams and reservoirs may also have an important social and environmental impact, and should be studied within the framework of integrated water resource management and sustainable development. Dams and Reservoirs, Societies and Environment in the 21st Century presents the latest research on the role played by dams and reservoirs in 21st century societies, in developed, emergent and developing countries. It analyses the viability of dams and suggests alternative solutions from a holistic perspective, considering the technical, economic, social and environmental aspects. Other issues covered include the social acceptability of dams, public involvement and dam awareness. The book covers subjects ranging from dam engineering, through the benefits and drawbacks of dams, to their social and environmental impact, and contains numerous case studies of the constructive contributions that reservoirs have made to water development and management. The book is a valuable resource for professional and dam engineers, water managers, governmental organizations and commercial enterprises responsible for dam development and management.
Water resources stored by dams and reservoirs play an essential role in water resource management, hydropower and flood control. Where there is an extensive network of dam infrastructures, dams have made a major contribution to economic and social development, providing considerable storage capacity per capita. However, dams and reservoirs may
This book provides an introduction to the scientific fundamentals of groundwater and geothermal systems. In a simple and didactic manner the different water and energy problems existing in deformable porous rocks are explained as well as the corresponding theories and the mathematical and numerical tools that lead to modeling and solving them. This approach provides the reader with a thorough understanding of the basic physical laws of thermoporoelastic rocks, the partial differential equations representing these laws and the principal numerical methods, which allow finding approximate solutions of the corresponding mathematical models. The book also presents the form in which specific useful models can be generated and solved. The text is introductory in the sense that it explains basic themes of the systems mentioned in three areas: engineering, physics and mathematics. All the laws and equations introduced in this book are formulated carefully based on fundamental physical principles. This way, the reader will understand the key importance of mathematics applied to all the subjects. Simple models are emphasized and solved with numerous examples. For more sophisticated and advanced models the numerical techniques are described and developed carefully. This book will serve as a synoptic compendium of the fundamentals of fluid, solute and heat transport, applicable to all types of subsurface systems, ranging from shallow aquifers down to deep geothermal reservoirs. The book will prove to be a useful textbook to senior undergraduate and graduate students, postgraduates, professional geologists and geophysicists, engineers, mathematicians and others working in the vital areas of groundwater and geothermal resources.
Overview of Japan’s long water history, by the Japanese Commission on large dams. Starting from the 7th century, when irrigation ponds were first constructed for paddy cropping, until the beginning of the 21st century. Elaborates on various roles of dams: water supply, power generation and flood control. Moreover, tries to clarify the negative impacts of dams on the natural environment and local societies, as well as extensive efforts made to minimize these impacts. Includes appendices with location and characteristics of main dams, administrative organs, river management system and water resources development river systems and facilities to offer the full picture. Richly-illustrated. Intended for dam and water resources professionals.
By the year 2000, the world had built more than 45,000 large dams to irrigate crops, generate power, control floods in wet times and store water in dry times. Yet, in the last century, large dams also disrupted the ecology of half the world's rivers, displaced tens of millions of people from their homes and left nations burdened with debt. Their impacts have inevitably generated growing controversy and conflicts. Resolving their role in meeting water and energy needs is vital for the future and illustrates the complex development challenges that face our societies. The Report of the World Commission on Dams: - is the product of an unprecedented global public policy effort to bring governments, the private sector and civil society together in one process - provides the first comprehensive global and independent review of the performance and impacts of dams - presents a new framework for water and energy resources development - develops an agenda of seven strategic priorities with corresponding criteria and guidelines for future decision-making. Challenging our assumptions, the Commission sets before us the hard, rigorous and clear-eyed evidence of exactly why nations decide to build dams and how dams can affect human, plant and animal life, for better or for worse. Dams and Development: A New Framework for Decision-Making is vital reading on the future of dams as well as the changing development context where new voices, choices and options leave little room for a business-as-usual scenario.
Overview of Japan’s long water history, by the Japanese Commission on large dams. Starting from the 7th century, when irrigation ponds were first constructed for paddy cropping, until the beginning of the 21st century. Elaborates on various roles of dams: water supply, power generation and flood control. Moreover, tries to clarify the negative impacts of dams on the natural environment and local societies, as well as extensive efforts made to minimize these impacts. Includes appendices with location and characteristics of main dams, administrative organs, river management system and water resources development river systems and facilities to offer the full picture. Richly-illustrated. Intended for dam and water resources professionals.
Big dams built for irrigation, power, water supply, and other purposes were among the most potent symbols of economic development for much of the twentieth century. Of late they have become a lightning rod for challenges to this vision of development as something planned by elites with scant regard for environmental and social consequences—especially for the populations that are displaced as their homelands are flooded. In this book, Sanjeev Khagram traces changes in our ideas of what constitutes appropriate development through the shifting transnational dynamics of big dam construction. Khagram tells the story of a growing, but contentious, world society that features novel and increasingly efficacious norms of appropriate behavior in such areas as human rights and environmental protection. The transnational coalitions and networks led by nongovernmental groups that espouse such norms may seem weak in comparison with states, corporations, and such international agencies as the World Bank. Yet they became progressively more effective at altering the policies and practices of these historically more powerful actors and organizations from the 1970s on. Khagram develops these claims in a detailed ethnographic account of the transnational struggles around the Narmada River Valley Dam Projects in central India, a huge complex of thirty large and more than three thousand small dams. He offers further substantiation through a comparative historical analysis of the political economy of big dam projects in India, Brazil, South Africa, and China as well as by examining the changing behavior of international agencies and global companies. The author concludes with a discussion of the World Commission on Dams, an innovative attempt in the late 1990s to generate new norms among conflicting stakeholders.