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.

Written as a companion to the bestseller, Restoration Agriculture, this book will help farmers capture water in areas they want to, and avoid having water flow immediately to the low point. The result? Less water expense, healthier crops and livestock, and less erosion ... just to name a few. What you will read in this book is a distillation of over 25 years of on-the-ground experience working with and modifying the Yeomans' Keyline Plan. From the back yard suburbs to 10,000-acre ranches and everywhere in between, from permafrost mountainsides just shy of the Arctic Circle, to equatorial boulder fields of East Africa, areas with 300 inches of rain per year to those with less than 3 inches, I have personally installed systems based on the Keyline design methodology and its modified forms.What you will read in this book is tried and true. It is intended to give a sufficient background to any landowner so that they can optimize their water resource for higher site productivity, have greater drought resistance and just as importantly, to know deep in their heart that they have made even one little piece of earth a little more life-filled, livable and green.

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.

Many landowners are interested in the native animals that live on their farms or once occurred there. In particular they want to know why particular species are present (or absent), what they can do to encourage them to visit, and what they might do to keep them there. Wildlife on Farms outlines the key features of animal habitats—large flowering trees, hollow trees, ground cover, understorey vegetation, dams and watercourses—and describes why landholders should conserve these habitats to encourage wildlife on their farms. It shows how wildlife conservation can be integrated with farm management and the benefits this can bring. The book presents 29 example species—mammals, birds, reptiles and amphibians—that are common to a large part of southern and eastern Australia. Each entry gives the distinguishing features of the animal, key features of its required habitat, and what can be done on a farm to better conserve the species.

Maximize your water harvesting potential with efficient, cost-effective earthworks In the face of drought and desertification, well-designed, water harvesting earthworks such as swales, ponds, and dams are the most effective way to channel water into productive use. The result can be increased food production, higher groundwater levels, reduced irrigation needs, and enhanced ecosystem resilience. Yet, due to a lack of knowledge, designers, and landowners often build earthworks that are costly, inappropriately sized and sited, or even dangerous. The Permaculture Earthworks Handbook is the first dedicated, detailed guide to the proper design and construction of water harvesting earthworks. It covers the function, design, and construction methods for nine main types of water harvesting earthworks across a full range of climates. Coverage includes: Swales, ponds, dams, hugelkultur, net-and-pan systems, spate irrigation, and more Cost versus benefit of different earthworks Assessing site needs and suitability Soil types and hydrology Designing for maximum efficiency and lowest cost Risk assessment and safe construction Stacking functions and integrating earthworks into a design This practical handbook is the essential resource for permaculture designers, teachers and students, landowners, farmers, homesteaders, landscape architects, and others involved in maximizing the water harvesting potential of any landscape at the lowest cost and impact. Douglas Barnes is a permaculture designer trained in Australia by Bill Mollison and Geoff Lawton. He has designed and built earthworks in North America, Japan, and Andra Pradesh, India. He lives in Tweed, Ontario in a passive solar house he designed and built, and he blogs at permaculturerelections.com.