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Quantifying Stream Bank Erosion And Deposition Rates In A Central Us Urban Watershed
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Book Synopsis Quantifying Stream Bank Erosion and Deposition Rates in a Central U.S. Urban Watershed by : Dandan Huang
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.
Book Synopsis Integrated Water Resources Research by : Jason A. Hubbart
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.
Book Synopsis Watershed Hydrology by : Vijay P. Singh
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:
Book Synopsis Quantifying Erosion and Deposition Due to Stream Planform Change Using High Spatial Resolution Digital Orthophotography and Lidar Data by : Kerrie M. Garvey
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.
Book Synopsis Fundamentals of Urban Runoff Management by : Earl Shaver
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:
Book Synopsis Erosional Aspects of Managing Urban Streams by : William Whipple
Download or read book Erosional Aspects of Managing Urban Streams written by William Whipple and published by . This book was released on 1980 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Riverbank Erosion Rates in the White Clay Creek Watershed, PA by : Kristen McCarthy
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.
Book Synopsis Effects of urban development on stream ecosystems in nine metropolitan study areas across the United States by : James F. Coles
Download or read book Effects of urban development on stream ecosystems in nine metropolitan study areas across the United States written by James F. Coles and published by . This book was released on 2012 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantifying the Effects of Freeze-thaw Processes on Riverbank Erosion in the White Clay Creek Watershed, Pa by : Zachary Cannon
Download or read book Quantifying the Effects of Freeze-thaw Processes on Riverbank Erosion in the White Clay Creek Watershed, Pa written by Zachary Cannon and published by . This book was released on 2019 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Subaerial erosion of riverbank sediments in the Mid-Atlantic region of the eastern United States is of particular concern with regard to sediment supply and water quality. One process heretofore understudied in this region that may play a role in erosion is the freezing and thawing of riverbank sediments, a process that occurs repeatedly as a consequence of the region's temperate winters. Over the last two years, observations of needle, segregated, and pore-space ice on riverbanks of the White Clay Creek suggest that the region's silty and sandy soils are prone to riverbank erosion and sediment entrainment related to soil freeze-thaw processes. Prior studies have acknowledged that soil freeze-thaw likely contributes to riverbank erosion but without direct quantification. To better understand the climatic conditions driving these processes and to attempt to quantify their effect on sediment erosion, an array of techniques were employed, including measurement of near-surface temperature and soil water content, erosion pins, and close-range digital photogrammetry surveying to monitor change over days to weeks for two vertical riverbanks. Through the winters of 2017 to 2019, periods of rapid freezing followed by significant thawing of water-saturated banks were repeatedly observed. The applied photogrammetry surveying techniques allowed for topographic models with sufficient resolution to quantify centimeter-scale retreat and expansion over the course of freeze-thaw events, fluxes which were validated by traditional erosion pin surveying measurements. These observations help to quantify the heretofore underestimated importance of soil freeze-thaw processes to an overall sediment budget. Additionally, the techniques presented herein lay the groundwork for further study to examine the contribution of freeze-thaw cycling to overall bank erosion rates for the White Clay Creek.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309679702 Total Pages :423 pages Book Rating :4.3/5 (96 download)
Book Synopsis Review of the New York City Watershed Protection Program by : National Academies of Sciences, Engineering, and Medicine
Download or read book Review of the New York City Watershed Protection Program written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-12-04 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York City's municipal water supply system provides about 1 billion gallons of drinking water a day to over 8.5 million people in New York City and about 1 million people living in nearby Westchester, Putnam, Ulster, and Orange counties. The combined water supply system includes 19 reservoirs and three controlled lakes with a total storage capacity of approximately 580 billion gallons. The city's Watershed Protection Program is intended to maintain and enhance the high quality of these surface water sources. Review of the New York City Watershed Protection Program assesses the efficacy and future of New York City's watershed management activities. The report identifies program areas that may require future change or action, including continued efforts to address turbidity and responding to changes in reservoir water quality as a result of climate change.
Book Synopsis The Relationship of Streambank Angles and Shapes to Streambank Erosion Rates in the Little River Watershed, TN by : William Ryan Foster
Download or read book The Relationship of Streambank Angles and Shapes to Streambank Erosion Rates in the Little River Watershed, TN written by William Ryan Foster and published by . This book was released on 2010 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Restoration of Aquatic Ecosystems by : National Research Council
Download or read book Restoration of Aquatic Ecosystems written by National Research Council and published by National Academies Press. This book was released on 1992-01-01 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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 Urban Geomorphology by : Mary J Thornbush
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
Book Synopsis Riparian Areas by : National Research Council
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 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.
Book Synopsis Land-use Changes and the Physical Habitat of Streams by : Robert B. Jacobson
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:
