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A Spatial Analysis Of Phosphorus In The Mississippi River Basin
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Book Synopsis A Spatial Analysis of Phosphorus in the Mississippi River Basin by : Linda M. Jacobson
Download or read book A Spatial Analysis of Phosphorus in the Mississippi River Basin written by Linda M. Jacobson and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus (P) in rivers and streams in the Mississippi River Basin (MRB) is a contributing nutrient to hypoxia in the Gulf of Mexico and impacts local water quality. Although nitrogen has been extensively studied and attributed to be the main nutrient causing the Gulf hypoxic zone, P has increasingly been recognized as having more of an effect than was previously thought. The primary inputs of P to rivers and streams are through surface runoff or tile drainage from agricultural fields and from point sources, primarily sewage effluent. The objective of this study was to analyze the spatial pattern of P inputs and outputs in the MRB as they relate to riverine P yields to the Gulf of Mexico and to determine the counties in the MRB that have the highest yields of P and the most critical factors causing this P loss. A database of factors contributing P to the environment was constructed for each county in the MRB from 1997 through 2006 including data on fertilizer application, major crop acreage and harvest, animal numbers for manure inputs and human population. Landscape and climate characteristics of tile drainage, soil characteristics, slope and precipitation were also included. Riverine yields of total P (TP), dissolved reactive P (DRP) and particulate P (PP) for 113 watersheds within the MRB were related to these factors to create multiple regression and spatial error regression models to predict P yields throughout the basin. The fraction of the land planted in crops, sewage effluent P inputs and precipitation were found to best predict TP yields with a spatial error model (R2=0.47). Dissolved reactive P yields were predicted by fertilizer P inputs, sewage effluent P inputs and precipitation in a multiple regression model (R2=0.46), whereas PP yields were explained by crop fraction, sewage effluent P inputs and soil bulk density in a spatial error regression model (R2=0.499). Inputs of P from animal manure were not found to be significant in any model predicting P yields, which contrasts with the results of the USGS SPARROW model. Overall, the Cornbelt region of the upper Midwest, where there is a large amount of cropland and fertilizer application, had the counties with the greatest P yields. This analysis of P in the MRB helps to point out specific areas where P reductions are needed to limit the occurrence of Gulf hypoxia and improve local water quality.
Book Synopsis Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin by :
Download or read book Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin written by and published by . This book was released on 1999 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrients in the Upper Mississippi River by :
Download or read book Nutrients in the Upper Mississippi River written by and published by . This book was released on 2003 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phosphorus Occurrence and Origin in the Mississippi River Valley Alluvial Aquifer in Northwestern Mississippi by : Claire Elise Rose
Download or read book Phosphorus Occurrence and Origin in the Mississippi River Valley Alluvial Aquifer in Northwestern Mississippi written by Claire Elise Rose and published by . This book was released on 2017 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The median total dissolved phosphorus concentration (0.41 mg/L P) of groundwater from the Mississippi River Valley alluvial aquifer exceeded the U.S. Environmental Protection Agency’s stream nutrient criteria (of 0.1 mg/L P) and the national background for phosphorus in groundwater (0.02 mg/L P). A general association between elevated phosphorus and dissolved iron concentrations suggests that reducing conditions that mobilize iron in the aquifer also may facilitate transport of phosphorus. These elevated concentrations of phosphorus may indicate phosphorus in the study area may be concentrated through irrigation return flow and groundwater discharge, and may contribute to the Gulf of Mexico hypoxic zone. The data do not appear to follow any spatial, geologic, or application pattern. The research indicates that phosphorus concentration in the aquifer was primarily sourced from natural geochemical reactions within the aquifer media.
Book Synopsis Mississippi River Water Quality and the Clean Water Act by : National Research Council
Download or read book Mississippi River Water Quality and the Clean Water Act written by National Research Council and published by National Academies Press. This book was released on 2008-02-08 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mississippi River is, in many ways, the nation's best known and most important river system. Mississippi River water quality is of paramount importance for sustaining the many uses of the river including drinking water, recreational and commercial activities, and support for the river's ecosystems and the environmental goods and services they provide. The Clean Water Act, passed by Congress in 1972, is the cornerstone of surface water quality protection in the United States, employing regulatory and nonregulatory measures designed to reduce direct pollutant discharges into waterways. The Clean Water Act has reduced much pollution in the Mississippi River from "point sources" such as industries and water treatment plants, but problems stemming from urban runoff, agriculture, and other "non-point sources" have proven more difficult to address. This book concludes that too little coordination among the 10 states along the river has left the Mississippi River an "orphan" from a water quality monitoring and assessment perspective. Stronger leadership from the U.S. Environmental Protection Agency (EPA) is needed to address these problems. Specifically, the EPA should establish a water quality data-sharing system for the length of the river, and work with the states to establish and achieve water quality standards. The Mississippi River corridor states also should be more proactive and cooperative in their water quality programs. For this effort, the EPA and the Mississippi River states should draw upon the lengthy experience of federal-interstate cooperation in managing water quality in the Chesapeake Bay.
Author :Mississippi River/Gulf of Mexico Watershed Nutrient Task Force. Monitoring, Modeling, and Research Workgroup Publisher :Geological Survey (USGS) ISBN 13 : Total Pages :64 pages Book Rating :4.:/5 (319 download)
Book Synopsis A Science Strategy to Support Management Decisions Related to Hypoxia in the Northern Gulf of Mexico and Excess Nutrients in the Mississippi River Basin by : Mississippi River/Gulf of Mexico Watershed Nutrient Task Force. Monitoring, Modeling, and Research Workgroup
Download or read book A Science Strategy to Support Management Decisions Related to Hypoxia in the Northern Gulf of Mexico and Excess Nutrients in the Mississippi River Basin written by Mississippi River/Gulf of Mexico Watershed Nutrient Task Force. Monitoring, Modeling, and Research Workgroup and published by Geological Survey (USGS). This book was released on 2004 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clean Coastal Waters by : National Research Council
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.
Book Synopsis Water-quality Assessment of Part of the Upper Mississippi River Basin Study Unit, Minnesota and Wisconsin by : Sharon E. Kroening
Download or read book Water-quality Assessment of Part of the Upper Mississippi River Basin Study Unit, Minnesota and Wisconsin written by Sharon E. Kroening and published by . This book was released on 2003 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimating Background Loads of Sediments, Organic Nitrogen, and Organic Phosphorus in the Mississippi River Basin by :
Download or read book Estimating Background Loads of Sediments, Organic Nitrogen, and Organic Phosphorus in the Mississippi River Basin written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary source of measured data available for sediment and nutrient loading on a national scale is found in the stream data published by the USGS (USGS, 1991). However, this data does not provide much information about whether the loadings come from point, nonpoint, or background sources or about where the sources are located. Hydrologic modeling can be used to provide much additional information about probable sources of pollutants and how they are transported through surface water and ground water systems. USDA/NRCS and TAES have initiated a national scale modeling project to estimate the nonpoint source pollutant loadings (sediment and organic nutrients) from agricultural areas and other land uses in the 48 coterminous United States. We also hope to incorporate existing data on point source loadings in our national modeling effort. Some preliminary results for the Mississippi River Basin from this study will be presented in this paper. The primary modeling unit areas for this project are the USGS.
Book Synopsis Mississippi River Phosphorus Study by : Minnesota Pollution Control Agency. Water Quality Division
Download or read book Mississippi River Phosphorus Study written by Minnesota Pollution Control Agency. Water Quality Division and published by . This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Phosphorus Trends and Evaluation of Sampling Designs in the Quinebaug River Basin, Connecticut by : Elaine C. Todd Trench
Download or read book Analysis of Phosphorus Trends and Evaluation of Sampling Designs in the Quinebaug River Basin, Connecticut written by Elaine C. Todd Trench and published by DIANE Publishing. This book was released on 2004 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial Distribution of Phosphorus in Fluvial Sediments from the James River Basin, SW Missouri by : Brian S. Fredrick
Download or read book Spatial Distribution of Phosphorus in Fluvial Sediments from the James River Basin, SW Missouri written by Brian S. Fredrick and published by . This book was released on 2001 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phosphorus Loss from Soil to Water in the Lee Catchment by : Julien Gillet
Download or read book Phosphorus Loss from Soil to Water in the Lee Catchment written by Julien Gillet and published by . This book was released on 2006 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report for the Integrated Assessment on Hypoxia in the Gulf of Mexico by :
Download or read book Report for the Integrated Assessment on Hypoxia in the Gulf of Mexico written by and published by . This book was released on 1999 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applied Statistics in Agricultural, Biological, and Environmental Sciences by : Barry Glaz
Download or read book Applied Statistics in Agricultural, Biological, and Environmental Sciences written by Barry Glaz and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Better experimental design and statistical analysis make for more robust science. A thorough understanding of modern statistical methods can mean the difference between discovering and missing crucial results and conclusions in your research, and can shape the course of your entire research career. With Applied Statistics, Barry Glaz and Kathleen M. Yeater have worked with a team of expert authors to create a comprehensive text for graduate students and practicing scientists in the agricultural, biological, and environmental sciences. The contributors cover fundamental concepts and methodologies of experimental design and analysis, and also delve into advanced statistical topics, all explored by analyzing real agronomic data with practical and creative approaches using available software tools. IN PRESS! This book is being published according to the “Just Published” model, with more chapters to be published online as they are completed.
Author :Metropolitan Waste Control Commission (Minn.). Water Quality Monitoring Division Publisher : ISBN 13 : Total Pages : pages Book Rating :4.:/5 (67 download)
Book Synopsis Mississippi River Phosphorus Study by : Metropolitan Waste Control Commission (Minn.). Water Quality Monitoring Division
Download or read book Mississippi River Phosphorus Study written by Metropolitan Waste Control Commission (Minn.). Water Quality Monitoring Division and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal and Spatial Phosphorus Trends in the Minnesota River Basin by : Kara Lynn Greenley Marr
Download or read book Seasonal and Spatial Phosphorus Trends in the Minnesota River Basin written by Kara Lynn Greenley Marr and published by . This book was released on 1999 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
