Download or read book Application of Continuous Watershed Modelling to Feedlot Runoff Management and Control written by Jerome J. Zovne and published by . This book was released on 1979 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of Continuous Watershed Modelling to Feedlot Runoff Management and Control written by United States. Environmental Protection Agency. Office of Research and Development and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of Continuous Watershed Modelling to Feedlot Runoff Management and Control written by Jerome J. Zovne and published by . This book was released on 1979 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Continuous Watershed Model for Evaluation and Design of Feedlot Runoff Control Systems written by Theodore A. Bean and published by . This book was released on 1976 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EPA 600 2 written by and published by . This book was released on 1979 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Reporting Series written by and published by . This book was released on 1972 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Cattle Feedlot Runoff and Retention Basin Quality written by J. Ronald Miner and published by . This book was released on 1981 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1979 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Activities written by Kansas State University. College of Engineering and published by . This book was released on 1974 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Indexes written by United States. Environmental Protection Agency and published by . This book was released on 1983 with total page 1760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Applications of STEPL Watershed Modeling of CAFO Feedlot Runoff and Implications of Surface Water Impacts written by Angela DeAngelo Acord and published by . This book was released on 2015 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concentrated Animal Feeding Operation (CAFO) cattle feedlot runoff is hydrologically modeled using the Spreadsheet Tool for Estimating Pollutants Load (STEPL). STEPL estimates the annual nutrient load of nitrogen and phosphorus, among other pollutants, by land use for a watershed. The Dry Creek Watershed Basin of Sioux County, Iowa, is delineated to capture runoff from large CAFO cattle feedlots. Feedlots are classified by digitizing land use data in ArcGIS, in order to estimate pollutant loads from each sub-watershed and determine the nutrient contributions from direct discharges from CAFO feedlots. Five CAFO feedlots are modeled within the Dry Creek watershed. The number of cattle confined at each CAFO ranges from 3,000 to 7,588 per sub-watershed. Cropland area comprises more than 80% of the total land use in all sub-watersheds, with the exception of one. STEPL assumes that cropland has added animal waste from land application of manure. STEPL also assumes feedlots are managed by routine scraping and removal to reduce some of the waste within the feedlots. Despite these assumptions, this modeling shows that CAFO feedlots discharge an estimated 67% to 98% of the nitrogen from the sub-watersheds compared to other land uses. Environmental impacts including dead zones, hypoxia, toxic algal blooms and other harmful aquatic impacts are attributed to excess nutrients. Many hydrological and water quality modeling studies seek to determine the source, transport and fate of nutrients in watersheds to address these environmental concerns. However, national land use data, specifically National Land Cover Dataset (NLCD) data created and managed by U.S Geological Survey does not have feedlots as a land use class (Homer et al., 2014). It would be difficult to determine nutrient loads directly from runoff without adequate land use data to represent feedlot land area. This study estimated the nutrient loads in runoff using CAFO feedlots at a small watershed scale. This method can be further applied to a larger scale to estimate the magnitude of the contribution CAFOs have on watershed contamination.

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1977 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North Central Regional Research Publication written by and published by . This book was released on 1942 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Livestock and the Environment written by Ralph H. Ramsey and published by . This book was released on 1974 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report summaries written by United States. Environmental Protection Agency and published by . This book was released on 1983 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt: