Low-Tech Process-Based Restoration of Riverscapes

Low-Tech Process-Based Restoration of Riverscapes PDF Author: Joseph M. Wheaton
Publisher: Usu Restoration Consortium
ISBN: 9781543972993
Category : Science
Languages : en
Pages : 0

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Book Description
The purpose of this design manual is to provide restoration practitioners with guidelines for implementing a subset of low-tech tools--namely beaver dam analogues (BDAs) and post-assisted log structures (PALS)--for initiating process-based restoration in structurally-starved riverscapes. While the concept of process-based restoration in riverscapes has been advocated for at least two decades, details and specific examples on how to implement it remain sparse. Here, we describe 'low-tech process-based restoration' as a practice of using simple, low unit-cost, structural additions (e.g. wood and beaver dams) to riverscapes to mimic functions and initiate specific processes. Hallmarks of this approach include: - An explicit focus on the processes that a low-tech restoration intervention is meant to promote.- A conscious effort to use cost-effective, low-tech treatments (e.g., hand-built, natural materials, non-engineered, short-term design life-spans) because of the need to efficiently scale-up application.- 'Letting the system do the work', which defers critical decision making to riverscapes and nature's ecosystem engineers.

Low-Tech Process-Based Restoration of Riverscapes

Low-Tech Process-Based Restoration of Riverscapes PDF Author: Joseph M. Wheaton
Publisher: Usu Restoration Consortium
ISBN: 9781543972993
Category : Science
Languages : en
Pages : 0

Get Book Here

Book Description
The purpose of this design manual is to provide restoration practitioners with guidelines for implementing a subset of low-tech tools--namely beaver dam analogues (BDAs) and post-assisted log structures (PALS)--for initiating process-based restoration in structurally-starved riverscapes. While the concept of process-based restoration in riverscapes has been advocated for at least two decades, details and specific examples on how to implement it remain sparse. Here, we describe 'low-tech process-based restoration' as a practice of using simple, low unit-cost, structural additions (e.g. wood and beaver dams) to riverscapes to mimic functions and initiate specific processes. Hallmarks of this approach include: - An explicit focus on the processes that a low-tech restoration intervention is meant to promote.- A conscious effort to use cost-effective, low-tech treatments (e.g., hand-built, natural materials, non-engineered, short-term design life-spans) because of the need to efficiently scale-up application.- 'Letting the system do the work', which defers critical decision making to riverscapes and nature's ecosystem engineers.

Erosion and Sedimentation

Erosion and Sedimentation PDF Author: Pierre Y. Julien
Publisher: Cambridge University Press
ISBN: 1139486969
Category : Science
Languages : en
Pages : 391

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Book Description
The second edition of this acclaimed, accessible textbook brings the subject of sedimentation and erosion up-to-date, providing an excellent primer on both fundamental concepts of sediment-transport theory and methods for practical applications. The structure of the first edition is essentially unchanged, but all the chapters have been updated, with several chapters reworked and expanded significantly. Examples of the new additions include the concept of added mass, the Modified Einstein Procedure, sediment transport by size fractions, sediment transport of sediment mixtures, and new solutions to the Einstein Integrals. Many new examples and exercises have been added. Erosion and Sedimentation is an essential textbook on the topic for students in civil and environmental engineering and the geosciences, and also as a handbook for researchers and professionals in engineering, the geosciences and the water sciences.

Stream and Watershed Restoration

Stream and Watershed Restoration PDF Author: Philip Roni
Publisher: John Wiley & Sons
ISBN: 111840663X
Category : Science
Languages : en
Pages : 335

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Book Description
With $2 billion spent annually on stream restoration worldwide, there is a pressing need for guidance in this area, but until now, there was no comprehensive text on the subject. Filling that void, this unique text covers both new and existing information following a stepwise approach on theory, planning, implementation, and evaluation methods for the restoration of stream habitats. Comprehensively illustrated with case studies from around the world, Stream and Watershed Restoration provides a systematic approach to restoration programs suitable for graduate and upper-level undergraduate courses on stream or watershed restoration or as a reference for restoration practitioners and fisheries scientists. Part of the Advancing River Restoration and Management Series. Additional resources for this book can be found at: www.wiley.com/go/roni/streamrestoration.

River Mechanics

River Mechanics PDF Author: Pierre Y. Julien
Publisher: Cambridge University Press
ISBN: 1107462770
Category : Science
Languages : en
Pages : 527

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Book Description
Completely updated and with three new chapters, this analysis of river dynamics is invaluable for advanced students, researchers and practitioners.

 PDF Author:
Publisher: Food & Agriculture Org.
ISBN: 9251392463
Category :
Languages : en
Pages : 160

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Book Description


River Restoration

River Restoration PDF Author: Bertrand Morandi
Publisher: John Wiley & Sons
ISBN: 1119410002
Category : Science
Languages : en
Pages : 388

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Book Description
River Restoration River restoration initiatives are now widespread across the world. The research efforts undertaken to support them are increasingly interdisciplinary, focusing on ecological, chemical, physical as well as societal issues. River Restoration: Political, Social, and Economic Perspectives provides a comprehensive overview of research in the field of river restoration in humanities and the social sciences. It illustrates how, in the last thirty years or so, such approaches have evolved and strengthened within the restoration sciences. The scientific community working in this domain has structured itself, often regionally and circumstantially, to critically assess and improve restoration policies and practices. As a research field, river restoration tackles three thematic axes: Human-river interactions – especially perceptions and practices of rivers, and how these interactions can be changed by restoration projects Political processes, with a particular interest in governance and decision-making, and a specific emphasis on the question of public participation in restoration projects Evaluation of the social and economic benefits of river restoration River Restoration: Political, Social, and Economic Perspectives encompasses these three topics, and more, to provide the reader with the most up-to-date and holistic view of this constantly evolving area. The book will be of particular interest to human and social scientists, biophysical scientists (hydrologists, geomorphologists, ecologists), environmental scientists, public policy makers, design or planning officers, and anyone working in the field of river restoration.

Urban Stormwater Management in the United States

Urban Stormwater Management in the United States PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309125391
Category : Nature
Languages : en
Pages : 611

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Book Description
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.

Messerschmitt Bf 109 G/K

Messerschmitt Bf 109 G/K PDF Author: Maciej Goralczyk
Publisher:
ISBN: 9788361220787
Category :
Languages : en
Pages : 90

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Book Description
An invaluable modelers guide to the Bf 109 G and K variations When the Bf 109 was first designed in 1934, by a team led by Willy Messerschmitt and Robert Lusser, its primary role was that of a high-speed, short range bomber interceptor. The Bf 109 was also designed to take advantage of the most advanced aerodynamics of the time and embodied structural techniques which were an advance on its contemporaries. In the years of the Blitzkrieg, the Bf 109 was the only single engined fighter operated by the Luftwaffe, until the appearance of the Fw 190. The G series, or "Gustav," was introduced in mid-1942; its initial variants (G-1 through G-4) differed only in minor details from the Bf 109F, most notably in being powered by the more powerful 1475 PS DB 605 engine. The final production version of the Bf 109 was the K series, or "Kurfurst," powered by the DB 605D engine with up to 2,000 PS output, and introduced in the autumn of 1944. Though externally akin to the late production Bf 109G series, a large number of detail internal and aerodynamic improvements were incorporated to the design that improved its effectiveness and remedied existing flaws, keeping the fighter competitive with the latest Allied and Soviet fighters.

Urban Rivers

Urban Rivers PDF Author: Stephane Castonguay
Publisher: University of Pittsburgh Press
ISBN: 082297794X
Category : History
Languages : en
Pages : 302

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Book Description
Urban Rivers examines urban interventions on rivers through politics, economics, sanitation systems, technology, and societies; how rivers affected urbanization spatially, in infrastructure, territorial disputes, and in flood plains, and via their changing ecologies. Providing case studies from Vienna to Manitoba, the chapters assemble geographers and historians in a comparative survey of how cities and rivers interact from the seventeenth century to the present. Rising cities and industries were great agents of social and ecological changes, particularly during the nineteenth century, when mass populations and their effluents were introduced to river environments. Accumulated pollution and disease mandated the transfer of wastes away from population centers. In many cases, potable water for cities now had to be drawn from distant sites. These developments required significant infrastructural improvements, creating social conflicts over land jurisdiction and affecting the lives and livelihood of nonurban populations. The effective reach of cities extended and urban space was remade. By the mid-twentieth century, new technologies and specialists emerged to combat the effects of industrialization. Gradually, the health of urban rivers improved. From protoindustrial fisheries, mills, and transportation networks, through industrial hydroelectric plants and sewage systems, to postindustrial reclamation and recreational use, Urban Rivers documents how Western societies dealt with the needs of mass populations while maintaining the viability of their natural resources. The lessons drawn from this study will be particularly relevant to today's emerging urban economies situated along rivers and waterways.

Methods in Stream Ecology

Methods in Stream Ecology PDF Author: F. Richard Hauer
Publisher: Academic Press
ISBN: 0080547435
Category : Science
Languages : en
Pages : 894

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Book Description
Methods in Stream Ecology, Second Edition, provides a complete series of field and laboratory protocols in stream ecology that are ideal for teaching or conducting research. This updated edition reflects recent advances in the technology associated with ecological assessment of streams, including remote sensing. In addition, the relationship between stream flow and alluviation has been added, and a new chapter on riparian zones is also included. The book features exercises in each chapter; detailed instructions, illustrations, formulae, and data sheets for in-field research for students; and taxanomic keys to common stream invertebrates and algae. With a student-friendly price, this book is key for all students and researchers in stream and freshwater ecology, freshwater biology, marine ecology, and river ecology. This text is also supportive as a supplementary text for courses in watershed ecology/science, hydrology, fluvial geomorphology, and landscape ecology. - Exercises in each chapter - Detailed instructions, illustrations, formulae, and data sheets for in-field research for students - Taxanomic keys to common stream invertebrates and algae - Link from Chapter 22: FISH COMMUNITY COMPOSITION to an interactive program for assessing and modeling fish numbers