Download or read book Agricultural Nonpoint Source Pollution and Edge of Field Monitoring of Water Quality in The Mississippi River Basin written by Yujie Huang and published by . This book was released on 2013 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico written by Committee on Clean Water Act Implementation Across the Mississippi River Basin and published by National Academies Press. This book was released on 2012-12-31 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most water resources managers, scientists, and other experts would agree that nonpoint source pollution is a more pressing and challenging national water quality problem today than point source pollution. Nonpoint sources of pollutants include parking lots, farm fields, forests, or any source not from a discrete conveyance such as a pipe or canal. Of particular concern across the Mississippi River basin (MRB) are high levels of nutrient loadings--nitrogen and phosphorus--from both nonpoint and point sources that ultimately are discharged into the northern Gulf of Mexico (NGOM). Nutrients emanate from both point and nonpoint sources across the river basin, but the large majority of nutrient yields across the MRB are nonpoint in nature and are associated with agricultural activities, especially applications of nitrogen-based fertilizers and runoff from concentrated animal feeding operations. Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico offers strategic advice and priorities for addressing MRB and NGOM water quality management and improvements. Although there is considerable uncertainty as to whether national water quality goals can be fully realized without some fundamental changes to the CWA, there is general agreement that significant progress can be made under existing statutory authority and budgetary processes. This book includes four sections identifying priority areas and offering recommendations to EPA and others regarding priority actions for Clean Water Act implementation across the Mississippi River basin. These sections are: USDA's Mississippi River Basin Healthy Watersheds Initiative; Numeric Water Quality Criteria for the northern Gulf of Mexico; A Basinwide Strategy for Nutrient Management and Water Quality; and, Stronger Leadership and Collaboration.
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.
Download or read book Mississippi River Water Quality and Interstate Collaboration written by National Research Council and published by National Academies Press. This book was released on 2014-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary of a Workshop on Mississippi River Water Quality Science and Interstate Collaboration summarizes presentations and discussions of Mississippi River and basin water quality management, monitoring, and evaluation programs that took place at a workshop that was held in St. Louis on November 18-19, 2013. The workshop examined a wide array of challenges and progress in water quality monitoring and evaluation in states along the Mississippi River corridor, and provided a forum for experts from U.S. federal agencies, the Mississippi River states, nongovernmental organizations, and the private sector to share and compare monitoring and evaluation experiences from their respective organizations.
Download or read book Nutrient Control Actions for Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico written by National Research Council and published by National Academies Press. This book was released on 2009-07-13 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large area of coastal waters in the northern Gulf of Mexico experiences seasonal conditions of low levels of dissolved oxygen, a condition known as hypoxia. Excess discharge of nutrients into the Gulf of Mexico from the Mississippi and Atchafalaya rivers causes nutrient overenrichment in the gulf's coastal waters and stimulates the growth of large algae blooms. When these algae die, the process of decomposition depletes dissolved oxygen from the water column and creates hypoxic conditions. In considering how to implement provisions of the Clean Water Act to strengthen nutrient reduction objectives across the Mississippi River basin, the U.S. Environmental Protection Agency (EPA) requested advice from the National Research Council. This book represents the results of the committee's investigations and deliberations, and recommends that the EPA and U.S. Department of Agriculture should jointly establish a Nutrient Control Implementation Initiative to learn more about the effectiveness of actions meant to improve water quality throughout the Mississippi River basin and into the northern Gulf of Mexico. Other recommendations include how to move forward on the larger process of allocating nutrient loading caps-which entails delegating responsibilities for reducing nutrient pollutants such as nitrogen and phosphorus-across the basin.
Download or read book Resource Description of the Upper Mississippi River System written by Vladimir Novotny and published by . This book was released on 1981 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Quality Assessments in the Mississippi Delta written by Mary T. Nett and published by . This book was released on 2004 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: All 50 states are implementing mandates of Total Maximum Daily Load (TMDL) assignments for contaminants likely to impact water in the United States, making water quality management a timely topic. TMDL criteria are a new initiative under the Clean Water Act and of critical importance to agricultural producers and state and federal regulators. Unfortunately, few precedents for assignment of pollutant maxima exist. This volume will show what one state (Mississippi) is doing to determine the most cost-effective and reliable practices for reducing the potential for non-point source pollution of U.S. waters. Readers may be able to apply some of the lessons learned in the Mississippi Delta Management Systems Evaluation Area (MDMSEA) to their own region.
Download or read book Cover Crops for Clean Water written by William Leonard Hargrove and published by . This book was released on 1991 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of this conference deal with the role of cover crops in water quality management, including reducing water runoff, soil erosion, agrichemical lost in runoff, and nitrate leaching to groundwater
Download or read book Water Quality Monitoring and Modeling Studies of On farm Water Storage Systems in a Mississippi Delta Agricultural Watershed written by Juan David Pérez-Gutiérrez and published by . This book was released on 2017 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federal and state programs have encouraged farmers in the Mississippi Delta region to implement best management practices (BMPs) to promote soil and water conservation. An on-farm water storage (OFWS) system is a structural BMP that has several potential benefits, namely, the ability to capture and reuse rainwater and tailwater runoff, provide supplemental water for irrigation, reduce groundwater withdrawals, and improve downstream water quality. However, research demonstrating these benefits and providing new insights for downstream water quality improvement and nutrient-rich runoff management is limited. This dissertation addresses these research gaps by examining the ability of OFWS systems to mitigate off-site nutrient movement, analyzing the impacts of rainfall characteristics on the ability of OFWS systems to reduce NO3-N, studying the hydrological and physical-chemical characteristics of the volume of water exiting an OFWS system, and using the AnnAGNPS model to simulate runoff, nutrient, and sediment loads entering a tailwater recovery ditch and identify the critical contributing areas of non-point source pollution. Significant seasonal water quality improvements were observed at different locations throughout the OFWS system, and more importantly, highlight downstream nutrient reduction, particularly during winter and spring. However, recurrent and high intensity rainfall events can minimize the system’s effectiveness in reducing downstream nutrient pollution. The NO3-N concentrations observed in the ditch were strongly dependent on antecedent hydrological conditions with characteristics of next-to-last rainfall events playing a more influential role. The nutrient load was greater in winter, as this season produced the highest effluent discharge. Agricultural fields draining to the outlet of the system produced 7.1 kg NO3-N ha−1 yr−1 and 2.3 kg TP ha−1 yr−1 that was discharged with outflow events. AnnAGNPS simulations showed that larger fields coupled with poorly drained soils resulted in higher runoff, and this condition mirrored the annual rainfall patterns. High nitrogen loss was due to fertilization of corn and winter wheat. TP and sediment loss patterns were similar and influenced by the hydrological condition. This study can be used by stakeholders and agencies to better identify where these systems can be implemented to improve water quality and offer a supplemental source of surface water.
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:
Download or read book Analysis of Nonpoint source Pollutants in the Missouri Basin Region written by A. D. McElroy and published by . This book was released on 1975 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Upper Mississippi River Basin Conservation Act written by United States. Congress. House. Committee on Agriculture. Subcommittee on General Farm Commodities, Resource Conservation, and Credit and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Master Plan for the Management of the Upper Mississippi River Basin written by and published by . This book was released on 1982 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Quality Assessment of Part of the Upper Mississippi River Basin Minnesota and Wisconsin Ground Water Quality in an Agricultural Area Etc U S Geological Survey Water Resources Investigations Report 00 4107 2000 written by and published by . This book was released on 2000 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water quality Assessment of Part of the Upper Mississippi River Basin Minnesota and Wisconsin written by James D. Fallon and published by . This book was released on 1997 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Assessment of Agricultural Nonpoint Source Pollution in Goodwater Creek Watershed Missouri written by Zeyuan Qiu and published by . This book was released on 1996 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluates the economic and water quality effects of thirty-seven farming systems (FSs) which are combinations of three crop rotations, two tillage systems, three fertilizer application rates, two pesticide application rates and the Conservation Reserve Program (CRP). The watershed is divided into 32 subwatersheds based on hydrologic relationships using a geographic information system (GIS). The surface water quality, specifically sediment yield, nitrogen and atrazine concentration in stream water, of alternative FSs at the watershed and subwatershed outlets are estimated using the SWAT (Soil and Water Assessment Tool) simulation model in conjunction with a GIS. The production costs and net returns of alternative FSs are estimated using the Cost and Return Estimator (CARE) and the 1990-1994 average input and output prices in the Midwest. An integrated mathematical programming model is developed to link the water quality objective at the watershed outlet to the spatial pattern of agricultural activities in the watershed and achieve the desired water quality objectives with minimum reduction in total watershed net return. The estimated net returns and water quality impacts of alternative FSs are incorporated into a mathematical programming model to evaluate the tradeoffs between economic return and water quality objectives. Alternative policy instruments for achieving the desired water quality objective at the watershed scale are evaluated. The economic benefits of maintaining riparian buffers in the watershed are assessed. There are substantial tradeoffs between economic return and water quality objectives at the watershed level. Tradeoffs vary across subwatersheds due to differences in soil, hydrology and topography. The study evaluates three policy instruments for watershed management, namely, regulating the spatial pattern of agricultural activities, an effluent tax and an abatement tax/subsidy. The three policies are equally efficient in terms of minimizing the loss in total watershed net return for achieving a given reduction in agricultural nonpoint source pollution but are different in terms of implementation feasibility. Regulation would infringe on farmers' property rights. The effluent tax would require water quality monitoring which is expensive and time consuming. The abatement tax/subsidy is the most feasible policy and is a cost-effective way to achieve the water quality objectives especially when riparian buffers are maintained in the watershed.
Download or read book Monitoring Agricultural Pesticide Residues written by United States. Agricultural Research Service and published by . This book was released on 1966 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
