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The Future for Our Small Streams and Rivers by Anatoliy I. Fisenko,Roman Hromnysky,Rouslan Fisenko Pdf
After observing that streams purify themselves through froth formation, the authors propose the use of froth collectors to concentrate stream and river pollutants for easy physical removal as an ecologically sensitive means to clean up polluted waterways.
Intermittent Rivers and Ephemeral Streams by Thibault Datry,Núria Bonada,Andrew J. Boulton Pdf
Intermittent Rivers and Ephemeral Streams: Ecology and Management takes an internationally broad approach, seeking to compare and contrast findings across multiple continents, climates, flow regimes, and land uses to provide a complete and integrated perspective on the ecology of these ecosystems. Coupled with this, users will find a discussion of management approaches applicable in different regions that are illustrated with relevant case studies. In a readable and technically accurate style, the book utilizes logically framed chapters authored by experts in the field, allowing managers and policymakers to readily grasp ecological concepts and their application to specific situations. Provides up-to-date reviews of research findings and management strategies using international examples Explores themes and parallels across diverse sub-disciplines in ecology and water resource management utilizing a multidisciplinary and integrative approach Reveals the relevance of this scientific understanding to managers and policymakers
National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Restoration of Aquatic Ecosystems: Science, Technology, and Public Policy
Author : National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Restoration of Aquatic Ecosystems: Science, Technology, and Public Policy Publisher : National Academies Press Page : 580 pages File Size : 51,5 Mb Release : 1992-01-01 Category : Technology & Engineering ISBN : 0309045347
Restoration of Aquatic Ecosystems by National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Restoration of Aquatic Ecosystems: Science, Technology, and Public Policy Pdf
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
California Rivers and Streams by Jeffrey F. Mount Pdf
California Rivers and Streams provides a clear and informative overview of the physical and biological processes that shape California's rivers and watersheds. Jeffrey Mount introduces relevant basic principles of hydrology and geomorphology and applies them to an understanding of the differences in character of the state's many rivers. He then builds on this foundation by evaluating the impact on waterways of different land use practices—logging, mining, agriculture, flood control, urbanization, and water supply development. Water may be one of California's most valuable resources, but it is far from being one we control. In spite of channels, levees, lines and dams, the state's rivers still frequently flood, with devastating results. Almost all the rivers in California are dammed or diverted; with the booming population, there will be pressure for more intervention. Mount argues that Californians know little about how their rivers work and, more importantly, how and why land-use practices impact rivers. The forceful reconfiguration and redistribution of the rivers has already brought the state to a critical crossroads. California Rivers and Streams forces us to reevaluate our use of the state's rivers and offers a foundation for participating in the heated debates about their future.
Congressional Record by United States. Congress Pdf
The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)
This essential book on fly tying will teach anyone how to tie flies. All the important techniques are illustrated with color photographs, from starting the thread on the hook to whip finishing. The book lays the basic ground work by fully explaining simple tying techniques, and then progresses to detailed tying instructions for some of the most popular, modern patterns. How to choose and prepare the correct material, and all the necessary tying steps for each fly, are detailed in superb, large, color photographs. Even if you have no previous tying experience, you'll be able to tie dries, nymphs, streamers, saltwater offerings, and bass bugs after just a few sessions with this book. The tyer is then advised how to progress to similar patterns using the same basic techniques. Also included is a huge reference of fly patterns - more than four hundred flies from the Orvis catalog are shown in full color, along with the tying recipes and proportions for each one. This book, drawing from the Orvis Company's vast resources and teaching experience and written by an author whose name is synonymous with Orvis, has become the bible for fly-tyers of all skill levels.
Stream Ecology by J. David Allan,María M. Castillo Pdf
A hugely important text for advanced undergraduates as well as graduates with an interest in stream and river ecology, this second, updated edition is designed to serve as a textbook as well as a working reference for specialists in stream ecology and related fields. The book presents vital new findings on human impacts, and new work in pollution control, flow management, restoration and conservation planning that point to practical solutions. All told, the book is expanded in length by some twenty-five percent, and includes hundreds of figures, most of them new.
Wildlife Restoration and Conservation Proceedings of the North American Wildlife Conference Called by President Franklin D. Roosevelt ... February 3-7, 1936 by United States. Congress. Senate. Special Committee on Conservation of Wild Life Resources Pdf