Download or read book Quantifying Stream Bank Erosion and Deposition Rates in a Central U S Urban Watershed written by Dandan Huang and published by . This book was released on 2012 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stream bank stability is gaining increasing attention in part because stream bank erosion can contribute as much as 80% of suspended sediment to streams, particularly in urbanizing watersheds. Stream bank erosion study sites were located in a lower reach of the Hinkson Creek Watershed located in Boone County, Missouri, USA. Streambank erosion and deposition rates were quantified using the erosion pin method comparing a remnant Bottomland Hardwood Forest (BHF) streambank to an Agricultural (Ag) streambank (922 m apart). Ten erosion pin plots (n = 342 pins) were installed that spanned the range of bank geometric and vegetation cover variability. Results indicated that during a drier (762 mm) than average (10yr avg=1077 mm) rainfall year 15.6 and 177.7 tonnes of soil erosion occurred on the right stream bank alone of the BHF and Ag sites respectively (Water Year 2011). Average erosion depth of the BHF and Ag was 18 and 112 mm/yr respectively. The greatest average depth of erosion occurred during the winter season (44.7 mm), followed by summer (13.1 mm) and spring (6.3 mm), fall had the lowest average erosion rate (1.1 mm). The stream bank erosion contributed approximately 67% of channel suspended sediment loading over WY 2011.Results hold important implications for land-use and land managers wishing to improve land-use practices, water quality and natural resource sustainability in dynamic urbanizing watersheds.
Download or read book Integrated Water Resources Research written by Jason A. Hubbart and published by MDPI. This book was released on 2021-05-20 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthropogenic and natural disturbances to freshwater quantity and quality are a greater issue for society than ever before. To successfully restore water resources requires understanding the interactions between hydrology, climate, land use, water quality, ecology, and social and economic pressures. This Special Issue of Water includes cutting edge research broadly addressing investigative areas related to experimental study designs and modeling, freshwater pollutants of concern, and human dimensions of water use and management. Results demonstrate the immense, globally transferable value of the experimental watershed approach, the relevance and critical importance of current integrated studies of pollutants of concern, and the imperative to include human sociological and economic processes in water resources investigations. In spite of the latest progress, as demonstrated in this Special Issue, managers remain insufficiently informed to make the best water resource decisions amidst combined influences of land use change, rapid ongoing human population growth, and changing environmental conditions. There is, thus, a persistent need for further advancements in integrated and interdisciplinary research to improve the scientific understanding, management, and future sustainability of water resources.
Download or read book Watershed Hydrology written by Vijay P. Singh and published by Allied Publishers. This book was released on 2003 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantifying Erosion and Deposition Due to Stream Planform Change Using High Spatial Resolution Digital Orthophotography and Lidar Data written by Kerrie M. Garvey and published by . This book was released on 2012 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: High sediment loads in rivers and streams are one of the most widespread and important causes of impairment nationally and worldwide. Negative impacts include decreased water quality, channel stability, and habitat health, as well as the economic costs to address these issues. Locally, state and provincial governments have attempted to limit non-point sources of sediment and closely linked phosphorus loading to Lake Champlain and other waters in recent decades. Quantitative estimates of the relative importance of sediment sources, and in particular agriculture vs. streambank erosion, is needed at watershed spatial scales to support these efforts.
Download or read book Riverbank Erosion Rates in the White Clay Creek Watershed PA written by Kristen McCarthy and published by . This book was released on 2018 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The supply of sediment to stream channels and estuaries is currently a concern in the Christina River basin. The goal of this study is to provide one component of the sediment budget for the White Clay Creek watershed, a primary watershed in the Christina basin, by quantifying the rates of stream bank erosion and factors that control bank erosion rates. At carefully chosen field sites, bank erosion rates have been estimated using historical aerial imagery and exposed tree root dendrochronology techniques. To explain variations in measured bank erosion rates, a variety of controls are considered including riparian vegetation, near-bank velocity, bank material strength, and the effects of freeze-thaw processes. Results show that for banks with a considerable number of riparian trees the bank erosion rates stay below 12.5 cm/yr, while banks with either no trees, smaller trees, or a small number of trees have erosion rates that vary from 9.9 cm/yr to 36.1 cm/yr. No correlation can be found between near-bank velocity or bank strength versus erosion rates, and the same applies for those sites not dominated by riparian trees. There seems to be some correlation between the material in the basal layer of the bank and bank erosion rates with an average bank erosion rate of 17.0 cm/yr for banks with a basal layer of mostly mud, and 9.5 cm/yr for banks with a basal layer of mostly sand and gravel. The results of this study will later be used to estimate bank erosion rates for the entire White Clay Creek watershed.
Download or read book Fundamentals of Urban Runoff Management written by Earl Shaver and published by . This book was released on 2007 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book River Dynamics written by Bruce L. Rhoads and published by Cambridge University Press. This book was released on 2020-04-29 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers are important agents of change that shape the Earth's surface and evolve through time in response to fluctuations in climate and other environmental conditions. They are fundamental in landscape development, and essential for water supply, irrigation, and transportation. This book provides a comprehensive overview of the geomorphological processes that shape rivers and that produce change in the form of rivers. It explores how the dynamics of rivers are being affected by anthropogenic change, including climate change, dam construction, and modification of rivers for flood control and land drainage. It discusses how concern about environmental degradation of rivers has led to the emergence of management strategies to restore and naturalize these systems, and how river management techniques work best when coordinated with the natural dynamics of rivers. This textbook provides an excellent resource for students, researchers, and professionals in fluvial geomorphology, hydrology, river science, and environmental policy.
Download or read book Stream Corridor Restoration written by and published by National Technical Info Svc. This book was released on 1998 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.
Download or read book Land use Changes and the Physical Habitat of Streams written by Robert B. Jacobson and published by Geological Survey (USGS). This book was released on 2001 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Riparian Areas written by National Research Council and published by National Academies Press. This book was released on 2002-10-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Download or read book Urban Geomorphology written by Mary J Thornbush and published by Elsevier. This book was released on 2018-07-17 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urban Geomorphology: Landforms and Processes in Cities addresses the human impacts on landscapes through occupation (urbanization) and development as a contribution to anthropogenic geomorphology or "anthropogeomorphology." This includes a focus on land clearance, conservation issues, pollution, decay and erosion, urban climate, and anthropogenic climate change. These topics, as well as others, are considered to shed more light on the human transformation of natural landscapes and the environmental impacts and geomorphological hazards that environmental change can encompass. Its multidisciplinary approach is appropriate for audiences from a range of disciplines and professions, from geologists, conservationists, and land-use planners to architects and developers. Urban Geomorphology not only transcends disciplines, but also covers varied spatial-temporal frameworks and presents a diverse set of approaches and solutions to human impacts and geomorphological hazards within urban landscapes. Features a cross-disciplinary perspective, highlighting the importance of the geosciences to environmental science, engineering, and public policy Focuses on the built environment as the location of concentrated human impacts and change Provides an international scope, including case studies from urban areas around the world
Download or read book River Stability written by David L. Rosgen and published by . This book was released on 2008-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stream and Watershed Restoration written by Philip Roni and published by John Wiley & Sons. This book was released on 2012-09-18 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Methods for Evaluating Stream Riparian and Biotic Conditions written by William S. Platts and published by . This book was released on 1982 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geographical Abstracts written by and published by . This book was released on 1986 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt: Subject index to various sections of Geo abstracts.
Download or read book Watershed Assessment of River Stability and Sediment Supply WARSSS written by David L. Rosgen and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
