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An Assessment Of An Urban Beaver Pond
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Book Synopsis Southern Forest Resource Assessment by : David N. Wear
Download or read book Southern Forest Resource Assessment written by David N. Wear and published by . This book was released on 2002 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The southern forest resource assessment provides a comprehensive analysis of the history, status, and likely future of forests in the Southern United States. Twenty-three chapters address questions regarding social/economic systems, terrestrial ecosystems, water and aquatic ecosystems, forest health, and timber management; 2 additional chapters provide a background on history and fire. Each chapter surveys pertinent literature and data, accesses conditions, identifies research needs, and examines the implications for southern forests and the benefits they provide.
Book Synopsis Foundations of Natural Resources Policy and Management by : Susan G. Clark
Download or read book Foundations of Natural Resources Policy and Management written by Susan G. Clark and published by Yale University Press. This book was released on 2000-01-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural resources issues are complex, often emotional, and almost always political. Efforts to improve natural resources management practices must take into account the scientific aspects of an issue plus these other dimensions. This book explains how to address and resolve the human issues underlying natural resources problems. It shows how the policy sciences--a systematic method for analyzing and proposing solutions--can be applied to any natural resources policy and management problem. The policy sciences approach proves flexible, widely applicable, and useful in developing realistic alternatives in diverse situations. The book begins with a discussion of what natural resources are, how people make decisions about using them, and how the policy sciences can be used toward improving policy and management practices. Ten case studies inside and outside the United States follow. Policy science methods are applied to such problems as endangered species conservation, urban parks, the development of energy projects, the relations between national parks and people who live near them, ecotourism and biodiversity, and the relation between human rights and environmental conservation in refugee situations.
Book Synopsis Saving the Dammed by : Ellen E. Wohl
Download or read book Saving the Dammed written by Ellen E. Wohl and published by . This book was released on 2019 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Saving the Dammed follows the course of the seasons throughout one representative year at a beaver meadow in Rocky Mountain National Park, Colorado. The seasonal changes provide a backdrop against which to explore how beavers change river valleys and how the decline in beaver populations has altered river ecosystems.
Download or read book Landscape Assessment: Maps written by and published by . This book was released on 1999 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Assessment written by and published by . This book was released on 1999 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Urban Stormwater Management in the United States by : National Research Council
Download or read book Urban Stormwater Management in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-03-17 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Eurasian Beaver by : Róisín Campbell-Palmer
Download or read book The Eurasian Beaver written by Róisín Campbell-Palmer and published by Pelagic Publishing Ltd. This book was released on 2015-01-19 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eurasian beaver was near extinction at the start of the twentieth century, hunted across Europe for its fur, meat and castoreum. But now the beaver is on the brink of a comeback, with wild beaver populations, licensed and unlicensed, emerging all over Britain.
Book Synopsis Guidelines for Collecting and Processing Samples of Stream Bed Sediment for Analysis of Trace Elements and Organic Contaminants for the National Water-Quality Assessment Program by : L. R. Shelton
Download or read book Guidelines for Collecting and Processing Samples of Stream Bed Sediment for Analysis of Trace Elements and Organic Contaminants for the National Water-Quality Assessment Program written by L. R. Shelton and published by . This book was released on 1994 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Restoring Neighborhood Streams by : Ann L. Riley
Download or read book Restoring Neighborhood Streams written by Ann L. Riley and published by Island Press. This book was released on 2016-07-12 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the author’s thirty years of practical experience managing long-term stream and river restoration projects in heavily degraded urban environments. Riley provides a level of detail only a hands-on design practitioner would know, including insights on project design, institutional and social context of successful projects, and how to avoid costly and time-consuming mistakes.
Book Synopsis Assessment of the Environmental Effects Associated with Wooden Bridges Preserved with Creosote, Pentachlorophenol, Or Chromated Copper Arsenate by : Kenneth M. Brooks
Download or read book Assessment of the Environmental Effects Associated with Wooden Bridges Preserved with Creosote, Pentachlorophenol, Or Chromated Copper Arsenate written by Kenneth M. Brooks and published by . This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Timber bridges provide an economical alternative to concrete and steel structures, particularly in rural areas with light to moderate vehicle traffic. Wooden components of these bridges are treated with chromated copper arsenate type C (CCA), pentachlorophenol, or creosote to prolong the life of the structure from a few years to many decades. This results in reduced transportation infrastructure costs and increased public safety. However, the preservative used to treat the wooden components in timber bridges is lost to the environment in small amounts over time. This report describes the concentration of wood preservatives lost to adjacent environments and the biological response to these preservatives as environmental contaminants. Six bridges from various states were examined for risk assessment: two creosote treated bridges, two pentachlorophenol-treated bridges, and two CCA-treated bridges. In all cases, the largest bridges located in biologically active environments associated with slow-flowing water were selected to represent worst-case analyses. Sediment and water column concentrations of preservative were analyzed upstream from, under, and downstream from each bridge. The observed levels of contaminant were compared with available regulatory standards or benchmarks and with the quantitative description of the aquatic invertebrate community sampled from vegetation and sediments. Pentachlorophenol- and creosote-derived polycyclic aromatic hydrocarbons (PAHs) were not observed in the water near any of the selected bridges. However, low levels of PAHs were observed in the sediments under and immediately downstream from these bridges. Pentachlorophenol concentrations did not approach toxicological benchmarks. Sediment concentrations of naphthalene, acenaphthylene, and phenanthrene exceeded the probable effect level. Metal levels at the bridges treated with CCA were less than predicted effect levels, in spite of questionable construction practices. Adverse biological effects were not observed in the aquatic invertebrate community or laboratory bioassays conducted on water and sediments sampled at each of the bridges. Results of this study reveal the need to follow the construction information found in Best Management Practices for the Use of Treated Wood In Aquatic Environments published by Western Wood Preservers Institute. Regulatory benchmarks used in risk assessments of this type need to be indexed to local environmental conditions. The robust invertebrate communities associated with slow-moving streams over soft bottoms were not susceptible to the concentrations of PAHs that would be expected to affect more sensitive taxa, which typically are located in faster moving water over hard bottoms. Contaminants released from timber bridges into these faster systems (where more sensitive taxa are located) are significantly diluted and not found at biologically significant levels.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report INT written by and published by . This book was released on 1988 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Once They Were Hats by : Frances Backhouse
Download or read book Once They Were Hats written by Frances Backhouse and published by ECW/ORIM. This book was released on 2015-10-01 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Unexpectedly delightful reading—there is much to learn from the buck-toothed rodents of yore” (National Post). Beavers, those icons of industriousness, have been gnawing down trees, building dams, shaping the land, and creating critical habitat in North America for at least a million years. Once one of the continent’s most ubiquitous mammals, they ranged from the Atlantic to the Pacific, and from the Rio Grande to the edge of the northern tundra. Wherever there was wood and water, there were beavers—sixty million, or more—and wherever there were beavers, there were intricate natural communities that depended on their activities. Then the European fur traders arrived. Once They Were Hats examines humanity’s fifteen-thousand–year relationship with Castor canadensis, and the beaver’s even older relationship with North American landscapes and ecosystems. From the waterlogged environs of the Beaver Capital of Canada to the wilderness cabin that controversial conservationist Grey Owl shared with pet beavers; from a bustling workshop where craftsmen make beaver-felt cowboy hats using century-old tools to a tidal marsh where an almost-lost link between beavers and salmon was recently found, it’s a journey of discovery to find out what happened after we nearly wiped this essential animal off the map, and how we can learn to live with beavers now that they’re returning. “Fascinating and smartly written.” —The Globe and Mail (Toronto)
Download or read book Eager written by Ben Goldfarb and published by Chelsea Green Publishing. This book was released on 2018 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our modern idea of what a healthy landscape looks like and how it functions is distorted by the fur trade that once trapped out millions of beavers from North America's lakes and rivers. Goldfarb shares the powerful story about one of the world's most influential species. He explains how North America was colonized, how our landscapes have changed over the centuries, and how beavers can help us fight drought, flooding, wildfire, extinction, and the ravages of climate change. -- adapted from jacket
Book Synopsis Progress in Geospatial Analysis by : Yuji Murayama
Download or read book Progress in Geospatial Analysis written by Yuji Murayama and published by Springer Science & Business Media. This book was released on 2012-07-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines current trends and developments in the methods and applications of geospatial analysis and highlights future development prospects. It provides a comprehensive discussion of remote sensing- and geographical information system (GIS)-based data processing techniques, current practices, theories, models, and applications of geospatial analysis. Data acquisition and processing techniques such as remote sensing image selections, classifications, accuracy assessments, models of GIS data, and spatial modeling processes are the focus of the first part of the book. In the second part, theories and methods related to fuzzy sets, spatial weights and prominence, geographically weighted regression, weight of evidence, Markov-cellular automata, artificial neural network, agent-based simulation, multi-criteria evaluation, analytic hierarchy process, and a GIS network model are included. Part three presents selected best practices in geospatial analysis. The chapters, all by expert authors, are arranged so that readers who are new to the field will gain an overview and important insights. Those readers who are already practitioners will gain from the advanced and updated materials and state-of-the-art developments in geospatial analysis.
Book Synopsis U.S. Department of the Interior, Office of Surface Mining by : United States. Office of Surface Mining Reclamation and Enforcement
Download or read book U.S. Department of the Interior, Office of Surface Mining written by United States. Office of Surface Mining Reclamation and Enforcement and published by . This book was released on 1994 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
