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Author : Steven J. Currie
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (1 download)
Download or read book Utilizing Wetlands for Phosphorus Reduction in Great Lakes Watersheds written by Steven J. Currie and published by . This book was released on 2017 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Qualbe Shadman T. Chowdhury
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (19 download)
Download or read book Biogeochemical Signatures of the Great Lakes Watersheds written by Qualbe Shadman T. Chowdhury and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water quality in many regions of the Great Lakes Basin (GLB) has deteriorated due to numerous anthropogenic drivers, including increases in agricultural area, increased fertilizer use, intensive livestock production, and increases in human population densities. Excessive nutrient inputs from both point and non-point sources have accelerated eutrophication in inland watersheds and in receiving water bodies, and policy goals have recently been set to reduce phosphorus loading to Lake Erie by as much as 40%. Under such pressures, it is crucial to better our understanding of nutrient transport across the GLB and to identify key watershed drivers of both seasonal and annual nutrient loading from watersheds to the lakes. In this research study, I have utilized numerous metrics to characterize nutrient dynamics in Great Lakes Watersheds across a gradient of human impacts and have attempted to identify key controls on biogeochemical signatures. As a part of this work, I paired water quality data from over 200 Great Lakes watersheds with land use and climate data to identify dominant controls on stream nutrient concentrations at the annual, seasonal, and event scales. At the annual scale, standardized regression analysis identified significant relationships between flow-weighted concentration (FWCs) and selected catchment characteristics. FWCs were found to be strongly linked to land-use variables such as combined agricultural and urban land, wetlands and tile drainage. Our quantification of these relationships was used to create spatial maps of annual nutrient concentrations and loads and to identify nutrient hotspots across the GLB. Specifically, high nutrient concentrations and export were observed in the Maumee and Sydenham River catchments, whereas lower concentrations and loads were found in Lake Superior catchments. At the seasonal scale, three primary seasonal nutrient regimes were identified: (1) 'in-phase' (positive correlation between monthly concentrations and discharge), (2) 'out-of-phase' (negative correlation), and (3) 'stationary' (no significant relationship). While in-phase seasonality was found to be the most common concentration regime for watersheds with higher levels of agricultural land use, nitrate seasonality in particular was found to be muted in watersheds with the highest agricultural land use, but to be more extreme in watersheds with less agriculture but higher amounts of forested area and higher wetland densities. Out-of-phase seasonality was found to be significantly associated with higher population densities and higher percent urban areas. At the event-scale, concentrations were found to be more variable with discharge for phosphorus than for nitrate. Additionally, Lake Erie showed significantly lower concentration variability in relation to discharge compared to all the other Lakes. As the Lake Erie basin also has higher agricultural land use than the other lakes, the more chemostatic concentration dynamics in these watersheds appears to be linked to agricultural nutrient use and suggests that agricultural nutrient legacies may be an important driver of current patterns in nutrient delivery to the lakes.
Author : Bailey A. Hannah
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.3/5 (529 download)
Download or read book Evaluating Nitrogen and Phosphorus Impacts Within Watersheds of the Great Lakes Basin written by Bailey A. Hannah and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Great Lakes and the streams draining to them provide an abundance of ecosystem services, including habitat, water resources, and recreational opportunities. The success and wellbeing of these water bodies are impacted by a variety of factors, including invasive species and septic systems. Along the shoreline of the Great Lakes, invasive species, such as Phragmites and Typha, are a major concern to the coastal wetlands. Within the inland river systems, near-shore septic systems can create elevated levels of nutrients that can have a collection of negative impacts. Both of these threats ultimately relate back to the presence and application of nutrients such as nitrogen and phosphorus. We first address the landscape conditions that allow for coastal wetland invasion. Using machine learning algorithms, we were able to quantify relationships between the presence of invasive species in coastland wetlands, and a variety of landscape scale variables - primarily the nutrient loads of nitrogen and phosphorus. We determined that high invasion is most strongly associated with nitrogen loading above 118 kg/ha/yr within the watersheds derived from the invaded wetlands. We then address how septic systems could be contributing to nutrient loads within the Manistee and Au Sable Rivers of Michigan. We modeled groundwater flow and the transport of nutrients to assess how competently septic systems are retaining nutrients. On average, septic systems allow 88% of introduced nitrogen, and 49% of phosphorus, to enter groundwater. These findings will inform watershed management and provide a better understanding of the effectiveness of septic systems.
Author : Phosphorus Management Strategies Task Force
Publisher : Windsor, Ont. : The Task Force
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.3/5 (91 download)
Download or read book Phosphorus Management for the Great Lakes written by Phosphorus Management Strategies Task Force and published by Windsor, Ont. : The Task Force. This book was released on 1980 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert H. Kadlec
Publisher : CRC Press
ISBN 13 : 0429838182
Total Pages : 1155 pages
Book Rating : 4.4/5 (298 download)
Download or read book Treatment Marshes for Runoff and Polishing written by Robert H. Kadlec and published by CRC Press. This book was released on 2019-07-09 with total page 1155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatment Marshes for Runoff and Polishing represents the most comprehensive and up-date-date resource for the design, construction, and operation of marsh treatment systems. This new edition represents a complete rewrite of the surface flow sections of previous editions of Treatment Wetlands. It is based on the performance hundreds of treatment marshes over the past 40 years. Treatment Marshes focuses on urban and agricultural runoff, river and lake water improvement, and highly treated municipal effluents. New information from the past dozen years is used to improve data interpretation and design concepts. Topics included in this book are Diversity of marsh vegetation Analyses of the human use of treatment marshes New concepts of underground processes and functions Spectrum of marsh values spanning mitigation, restoration, enhancement, and water quality improvement Improved methods for calculation of evapotranspiration and wetland water temperatures Hydraulics of surface and subsurface flows in marshes Analysis of long track records for deterministic and probabilistic behavior Consideration of integrated microbial and vegetative contaminant removals via mass balances Uptake and emission of gases Performance of urban and agricultural wetlands Design procedures for urban and agricultural wetlands Reduction of trace metals, pesticides, pharmaceuticals, endocrine disruptors, and trace organics Updated capital and O&M economics, and valuation of ancillary benefits An updated list of over 1900 references
Author : Joseph V. DePinto
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.3/5 (91 download)
Download or read book Phosphorus Removal in Lower Great Lakes Municipal Treatment Plants written by Joseph V. DePinto and published by . This book was released on 1980 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tatenda Dalu
Publisher : Elsevier
ISBN 13 : 0128223634
Total Pages : 864 pages
Book Rating : 4.1/5 (282 download)
Download or read book Fundamentals of Tropical Freshwater Wetlands written by Tatenda Dalu and published by Elsevier. This book was released on 2021-11-25 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Tropical Freshwater Wetlands: From Ecology to Conservation Management is a practical guide and important tool for practitioners and educators interested in the ecology, conservation and management of wetlands in tropical/subtropical regions. The book is written in such a way that, in addition to scientists and managers, it is accessible to non-specialist readers. Organized into three themed sections and twenty-three chapters, this volume covers a variety of topics, exposing the reader to a full range of scientific, conservation and management issues. Each chapter has been written by specialists in the topic being presented. The book recognizes that wetland conservation, science and management are interlinked disciplines, and so it attempts to combine several perspectives to highlight the interdependence between the various professions that deal with issues in these environments. Within each chapter extensive cross-referencing is included, so as to help the reader link related aspects of the issues being discussed. - Contributed to by global experts in the field of tropical wetlands - Includes case studies and worked examples, enabling the reader to recreate the work already done - Focuses on tropical systems not available in any other book
Author : New York State College of Agriculture and Life Sciences
Publisher : CRC Press
ISBN 13 :
Total Pages : 504 pages
Book Rating : 4.3/5 (91 download)
Download or read book Phosphorus Management Strategies for Lakes written by New York State College of Agriculture and Life Sciences and published by CRC Press. This book was released on 1980 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 9780309045346
Total Pages : 580 pages
Book Rating : 4.0/5 (453 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.3/5 (91 download)
Download or read book Onsite Wastewater Treatment Systems Manual written by and published by . This book was released on 2002 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This manual contains overview information on treatment technologies, installation practices, and past performance."--Introduction.
Author : William J. Rose
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (319 download)
Download or read book Water Quality, Hydrology, and the Effects of Changes in Phosphorus Loading to Pike Lake, Washington County, Wisconsin, with Special Emphasis on Inlet-to-outlet Short-circuiting written by William J. Rose and published by . This book was released on 2004 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309069483
Total Pages : 422 pages
Book Rating : 4.3/5 (9 download)
Download or read book Clean Coastal Waters written by National Research Council and published by National Academies Press. This book was released on 2000-08-17 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Author : Peter Miele
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (119 download)
Download or read book Investigating Phosphorus Reduction Strategies in the Wigle Creek Watershed Using Hydrologic and Water Quality Modelling written by Peter Miele and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "In recent decades, the quality of the Great Lakes ecosystems has deteriorated due to non-point source pollution caused by agricultural activity. As agricultural activity continues, as do the issues that plague the water quality of the Great Lakes. Though it is easy to determine sources of pollution (point sources), it is difficult to assess the pollution from agricultural activities (non-point sources); modeling, however, can provide reasonable assessment of such pollution. The Soil & Water Assessment Tool (SWAT), a continuous simulation model, was selected to model hydrology of the Wigle Creek Watershed. Initial setup of the model was to implement currently practiced Best Management Practices (BMP), and to calibrate it with the available data. The Nash-Sutcliffe Efficiency (NSE), Percent Bias (PBIAS), and Coefficient of Determination (R2) statistics were used to evaluate the model’s performance in representing the measured values for flow, sediment yield, and phosphorus yield. Calibration and validation were performed on a daily time step, for the data available between the start of 2016 to mid-2017, as a result of an insufficient availability of data. Flow calibration of the model was found to be satisfactory, with an NSE of 0.52, a PBIAS of 6.71%, and a R2 of 0.56. Calibration of sediment yield did not provide satisfactory results for NSE and R2, with values of 0.3 and 0.31 respectively. PBIAS, on the other hand, was satisfactory at -15.94%. Additionally, sediment concentration was tested based on the calibration results and it did not provide satisfactory results for NSE and R2; however, the value for concentration PBIAS was much better when compared to the sediment yield PBIAS. Phosphorus calibration was found to be rather poor in all statistical parameters, especially overestimating the output of phosphorus in the watershed. The NSE was calculated to be -0.08, PBIAS as 82.57%, with an R2 of 0.17. These results imply that the calibrated model was not an accurate estimator for sediment and phosphorus in the Wigle Creek watershed; availability of limited data could have resulted in such outcome. To determine the effectiveness of the currently implemented BMPs and scenarios, a no BMP scenario was created for comparison. BMPs were then added onto the “No BMP” scenario to examine the reduction from a given scenario. The best scenario, though not practical, was the retiring of agricultural land to either forest or pasture. The average annual reduction in phosphorus obtained was 74% and 63% for the forest and pasture options, respectively. The effects of minimum tillage and no-till, when applied throughout the watershed, were also included as scenarios. The no-till scenario provided a higher (53%) average annual reduction as compared to minimum-till (36%). Vegetative filter strips were also explored as a BMP in this modelling exercise. The Vegetative filter strips were applied along the edge of a field, based on growing area, in the entire watershed and had a significant effect on the reduction of phosphorus (38%). Cover crops were also evaluated as a BMP, when planted after harvesting winter wheat. Cover crops showed little reduction in phosphorus yield (3%) at the watershed outlet"--
Author :
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (11 download)
Download or read book U.S. Action Plan for Lake Erie written by and published by . This book was released on 2018 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document outlines federal and state efforts to achieve the binational phosphorus load reduction targets adopted in 2016 under the Great Lakes Water Quality Agreement.
Author : Jan Vymazal
Publisher : Springer
ISBN 13 : 9783319389264
Total Pages : 0 pages
Book Rating : 4.3/5 (892 download)
Download or read book Natural and Constructed Wetlands written by Jan Vymazal and published by Springer. This book was released on 2016-09-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book extends the knowledge on wetland ecosystem services based on the new research. The information combines the achievements gained in carbon sequestration, nutrient accumulation, macrophyte decomposition, wastewater treatment, global warming mitigation in constructed as well as natural wetlands across the globe. The book presents up-to-date results of ongoing research and the content of the book could be used by wetland scientists, researchers, engineers, designers, regulators, decision-makers, universities teachers, landscape engineers and landscape planners as well as by water authorities, water regulatory offices or wastewater treatment research institutions.
Author :
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (89 download)
Download or read book Phosphorus Control in Lake Watersheds written by and published by . This book was released on 1992 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Iowa State University. Cooperative Extension Service
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.:/5 (31 download)
Download or read book Demonstration Farm Report written by Iowa State University. Cooperative Extension Service and published by . This book was released on 1910 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
