Sediment Phosphorus Response To Reduced Point Source Loading In The James River Watershed Southwest Missouri
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Sediment Phosphorus Response To Reduced Point Source Loading In The James River Watershed Southwest Missouri
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Author : Adam Dale Mulling
language : en
Publisher:
Release Date : 2015
Sediment Phosphorus Response To Reduced Point Source Loading In The James River Watershed Southwest Missouri written by Adam Dale Mulling and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Eutrophication categories.
Eutrophication of lakes due to increased loading of nutrients negatively affects water quality, warranting worldwide efforts to reduce the limiting nutrient in most lakes, phosphorus (P). Government regulations on excess nutrient loads entering the James River Arm (JRA) of Table Rock Lake, Missouri began in 2001 with upgrades at a major sewage treatment plant (STP). The present study aims to quantify the spatial and temporal distribution of sediment P in the James River Basin by (1) quantifying present sediment-P concentrations in the basin, (2) describing the spatial patterns of sediment-P reduction, and (3) investigating the link between upstream sediment and P sources and JRA sediment-P response. Lake sedimentation zones are identified based on physical and chemical sediment characteristics and lake morphometry. Sediment-P concentrations are highest immediately downstream of the STP (620-1,190 ppm) and in the JRA (370-1,580 ppm) and are lower in the James River (170-640 ppm). Sediment-P concentrations in the JRA are strongly correlated to depth and Mn (r2 = 0.92). Sediment-P concentrations have decreased downstream of the STP since 2001, ranging from 14-58% in stream sediments, and 31-36% in the JRA. Lake sediment-P reductions are greatest in deeper areas of the JRA. Concentrations of A1 have decreased by 9-70% in the James River and Wilson's Creek, and have increased in the JRA by 9-34%, potentially reflecting the influence of STP treatment procedures or variable sediment sources on sediment geochemistry. Nonpoint P may have increased since 2001, warranting future attention.
Spatial Distribution Of Phosphorus In Fluvial Sediments From The James River Basin Sw Missouri
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Author : Brian S. Fredrick
language : en
Publisher:
Release Date : 2001
Spatial Distribution Of Phosphorus In Fluvial Sediments From The James River Basin Sw Missouri written by Brian S. Fredrick and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with James River (Mo.) categories.
Water Quality Snapshot Survey In The James River Watershed Missouri
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Author : Loring Bullard
language : en
Publisher:
Release Date : 2014
Water Quality Snapshot Survey In The James River Watershed Missouri written by Loring Bullard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Escherichia coli categories.
Population growth and land-uses have created water quality impairment in the James River watershed of southwest Missouri. Many studies have been completed in the watershed, but these have focused primarily on specific problem areas or used data from a few fixed sites. This thesis describes the use of a relatively new method, called the snapshot survey, to examine spatial patterns in water quality across the entire James River watershed within a very short time frame. Seventy sites on streams and springs in the watershed were sampled by volunteers in a three hour period on July 13, 2013. Measured variables included temperature, pH, conductivity, chlorides, total nitrogen, total phosphorus and E. coli. Spatial patterns indicate that Wilsons Creek elevates total nitrogen and total phosphorus levels in the James River above the Total Maximum Daily Load target levels. Pearson Creek was found to have high E coli levels, from unknown sources. Sites on the upper James and upper Finley Rivers were elevated with respect to nutrients and E. coli, which may be non-point source related. Snapshot survey data compared well with that collected in previous studies, indicating that the volunteer-collected data is of good quality. Snapshot sampling appears to be a viable method for discerning broad spatial patterns related to both point and non-point sources of pollution. The application of this method in the James River basin can be used as a template for future snapshot events in the James River or other watersheds.
Assessing The Water Quality Benefit Of Point Source Phosphorus Control In The James River Basin
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Author : Wu-Seng Lung
language : en
Publisher:
Release Date : 1985
Assessing The Water Quality Benefit Of Point Source Phosphorus Control In The James River Basin written by Wu-Seng Lung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.
Identifying And Mitigating Potential Nutrient And Sediment Hot Spots Under A Future Scenario In The Missouri River Basin
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Author :
language : en
Publisher:
Release Date : 2015
Identifying And Mitigating Potential Nutrient And Sediment Hot Spots Under A Future Scenario In The Missouri River Basin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Using the Soil and Water Assessment Tool (SWAT) for large-scale watershed modeling could be useful for evaluating the quality of the water in regions that are dominated by nonpoint sources in order to identify potential "hot spots" for which mitigating strategies could be further developed. An analysis of water quality under future scenarios in which changes in land use would be made to accommodate increased biofuel production was developed for the Missouri River Basin (MoRB) based on a SWAT model application. The analysis covered major agricultural crops and biofuel feedstock in the MoRB, including pasture land, hay, corn, soybeans, wheat, and switchgrass. The analysis examined, at multiple temporal and spatial scales, how nitrate, organic nitrogen, and total nitrogen; phosphorus, organic phosphorus, inorganic phosphorus, and total phosphorus; suspended sediments; and water flow (water yield) would respond to the shifts in land use that would occur under proposed future scenarios. The analysis was conducted at three geospatial scales: (1) large tributary basin scale (two: Upper MoRB and Lower MoRB); (2) regional watershed scale (seven: Upper Missouri River, Middle Missouri River, Middle Lower Missouri River, Lower Missouri River, Yellowstone River, Platte River, and Kansas River); and (3) eight-digit hydrologic unit (HUC-8) subbasin scale (307 subbasins). Results showed that subbasin-level variations were substantial. Nitrogen loadings decreased across the entire Upper MoRB, and they increased in several subbasins in the Lower MoRB. Most nitrate reductions occurred in lateral flow. Also at the subbasin level, phosphorus in organic, sediment, and soluble forms was reduced by 35%, 45%, and 65%, respectively. Suspended sediments increased in 68% of the subbasins. The water yield decreased in 62% of the subbasins. In the Kansas River watershed, the water quality improved significantly with regard to every nitrogen and phosphorus compound. The improvement was clearly attributable to the conversion of a large amount of land to switchgrass. The Middle Lower Missouri River and Lower Missouri River were identified as hot regions. Further analysis identified four subbasins (10240002, 10230007, 10290402, and 10300200) as being the most vulnerable in terms of sediment, nitrogen, and phosphorus loadings. Overall, results suggest that increasing the amount of switchgrass acreage in the hot spots should be considered to mitigate the nutrient loads. The study provides an analytical method to support stakeholders in making informed decisions that balance biofuel production and water sustainability.
Spatial Assessment Of Nonpoint Phosphorus Sources Using Streambed Sediment Monitoring In The Kings River Basin Nw Arkansas
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Author : Jason W. White
language : en
Publisher:
Release Date : 2001
Spatial Assessment Of Nonpoint Phosphorus Sources Using Streambed Sediment Monitoring In The Kings River Basin Nw Arkansas written by Jason W. White and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Kings River Watershed (Ark.) categories.
A Final Report
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Author : Wu-Seng Lung
language : en
Publisher:
Release Date : 1985
A Final Report written by Wu-Seng Lung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Water categories.
Internal Phosphorus Loading In Lakes
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Author : Bryan Spears
language : en
Publisher:
Release Date : 2020
Internal Phosphorus Loading In Lakes written by Bryan Spears and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Science categories.
Nutrient enrichment of lakes is a ubiquitous problem, impacting ecological and human health on a global scale by accelerating the pace of eutrophication, often resulting in algal blooms, depleted dissolved oxygen concentrations, and economic harm to surrounding communities. In many lakes, bed sediments are a major but unrecognized source of phosphorus to the water, a process known as internal phosphorus loading. Internal loading is notoriously difficult to measure and manage given the need to access processes operating on and within the lakebed. In addition, climate change threatens to promote internal loading. For example, warming of lakes can increase the release of phosphorus from sediments due to 1) longer and stronger periods of lake stratification resulting in sediment anoxia and 2) enhanced microbial decomposition of organic matter. Degraded water quality not only impairs ecological health but also can influence social pride and community morale. This is the first book dedicated to the understanding of internal phosphorus loading in lakes and examines the causes, the ecological and societal impacts, and options for managing this complex phenomenon. With contributions from leading experts, this edited volume provides a broad view of internal phosphorus loading, methods for measurement, management practices for water quality improvement, case studies from around the world, and recommendations for addressing this growing concern. It is essential reading for environmental and engineering professionals involved in lake and reservoir management, students and faculty in limnology, state and federal authorities involved in water quality regulation, and lakefront homeowners and management boards interested in maintaining lake water quality and managing algal blooms. Key Features * First-ever comprehensive volume on internal phosphorous loading that clearly details what it is and why it occurs * Identifies and explores the drivers of internal phosphorus loading * Provi
Protocol For Developing Nutrient Tmdls
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Author :
language : en
Publisher:
Release Date : 1999
Protocol For Developing Nutrient Tmdls written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Nutrient pollution of water categories.
Phosphorus Polluter And Resource Of The Future
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Author : Christian Schaum
language : en
Publisher: IWA Publishing
Release Date : 2018-03-15
Phosphorus Polluter And Resource Of The Future written by Christian Schaum and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-15 with Science categories.
This comprehensive book provides an up-to-date and international approach that addresses the Motivations, Technologies and Assessment of the Elimination and Recovery of Phosphorus from Wastewater. This book is part of the Integrated Environmental Technology Series.