Factors Controlling Nitrogen Loadings in Major River Basins Across the United States
Elizabeth W Boyer1, Richard B Alexander2, James N Galloway3, Heather E Golden4, Richard B Moore5, Gregory E. Schwarz2, Jud W Harvey2, Jesus D. Gomez-Velez6, Durelle Scott7 and John W. Clune8, (1)Pennsylvania State University, University Park, United States, (2)U.S. Geological Survey, Reston, VA, United States, (3)University of Virginia, Environmental Sciences, Charlottesville, VA, United States, (4)US Environmental Protection Agency, Cincinnati, OH, United States, (5)U.S. Geological Survey, Pembroke, NH, United States, (6)Vanderbilt University, Civil and Environmental Engineering, Nashville, TN, United States, (7)Virginia Polytechnic Institute and State University, Biological Systems Engineering, Blacksburg, United States, (8)U.S. Geological Survey, Williamsport, PA, United States
