National Water-Quality Assessment (NAWQA) Program
More Information about Nutrients
Nutrients National Synthesis
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Effects of Nutrient Enrichment on Stream Ecosystems |
Sources, Transport, and Fate of Agricultural Chemicals
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Showing results 476 to 501 of 648.
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Qi, S.L., and Gurdak, J.J., 2006, Percentage of probability of nonpoint-source nitrate contamination of recently recharged ground water in the High Plains aquifer: U.S. Geological Survey Digital Data Series, DDS-192, on-line only. Available Online
Rebich, R.A., and Demcheck, D.K., 2007, Trends In Nutrient and Sediment Concentrations and Loads In Major River Basins of the South-Central United States, 1993-2004: USGS Scientific Investigations Report 2007-5090, 112 p. Available Online
Rebich, R.A., Houston, N.A., Mize, S.V., Pearson, D.K., Ging, P.B., and Hornig, C.E., 2011, Sources and delivery of nutrients to the northwestern Gulf of Mexico from streams in the South-Central United States: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 26 p. doi: 10.1111/j.1752-1688.2011.00583.x Available Online
Reuber, Eric J., 2001, Shallow ground-water quality in an agricultural area of the Lower Coastal Plain of South Carolina, 1997: U.S. Geological Survey Open-File Report 01-377, 13 p. Available Online
Reuber, Eric J., 1999, Shallow ground-water quality in the coastal plain of Columbia, South Carolina, 1996: U.S. Geological Survey Fact Sheet FS-130- 98, 6 p. Available Online
Reutter, David C., 2003, Nitrogen and phosphorus in streams of the Great Miami River Basin, Ohio, 1998-2000: U.S. Geological Survey Water-Resources Investigations Report 02-4297, 76 p. Available Online
Richards, Kevin D., Sullivan, Daniel J., and Stewart, Jana S., 1998, Surface-water quality at fixed sites in the Western Lake Michigan Drainages, Wisconsin and Michigan, and the effects of natural and human factors, 1993-95: U.S. Geological Survey Water-Resources Investigations Report 97-4208, 40 p. Available Online
Rinella, Frank A., and Janet, Mary L., 1998, Seasonal and spatial variability of nutrients and pesticides in streams of the Willamette Basin, Oregon, 1993-95: U.S. Geological Survey Water-Resources Investigations Report 97-4082-C, 57 p. Available Online
Rinella, J.F., McKenzie, S.W., and Fuhrer, G.J., 1992, Executive summary surface-water-quality assessment of the Yakima River Basin, Washington: Analysis of available water-quality data through 1985 water year: U.S. Geological Survey Open-File Report 91-454, 13 p. Available Online
Rinella, J.F., McKenzie, S.W., and Fuhrer, G.J., 1992, Surface-water quality assessment of the Yakima River Basin, Washington: Analysis of available water-quality data through 1985 water year: U.S. Geological Survey Open- File Report 91-453, 244 p. Available Online
Riskin, Melissa L., Deacon, Jeffrey R., Liebman, Matthew L., and Robinson, Keith W., 2003, Nutrient and chlorophyll relations in selected streams of the New England coastal basins in Massachusetts and New Hampshire, June- September 2001: U.S. Geological Survey Water-Resources Investigations Report 03-4191, 16 p. Available Online
Robertson, D.M., and Saad, D.A., 2001, Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 23 p. doi: 10.1111/j.1752-1688.2011.00574.x Available Online
Robertson, Dale M., 1998, Evaluation of the surface-water sampling design in the Western Lake Michigan Drainages in relation to environmental factors affecting water quality at base flow: U.S. Geological Survey Water-Resources Investigations Report 98-4072, 53 p. Available Online
Robertson, Dale M., 1996, Use of frequency-volume analyses to estimate regionalized yields and loads of sediment, phosphorus, and polychlorinated biphenyls to Lakes Michigan and Superior: U.S. Geological Survey Water-Resources Investigations Report 96-4092, 47 p. Available Online
Robertson, Dale M., 1996, Sources and transport of phosphorus in the Western Lake Michigan Drainages: U.S. Geological Survey Fact Sheet 208-96, 4 p. Available Online
Robertson, Dale M., and Richards, Kevin D., 2000, Influence of different temporal sampling strategies on estimating loads and maximum concentrations in small streams: Conference Proceedings NWQMC National Monitoring Conference 2000, Monitoring for the Millennium, p. 209-223.
Robertson, Dale M., and Roerish, Eric D., 1999, Influence of various water quality sampling strategies on load estimates for small streams: Water Resources Research, vol. 35, no. 12, p. 3747-3759. Available Online
Robertson, Dale M., and Saad, David A., 1996, Water-quality assessment of the Western Lake Michigan Drainages--Analysis of available information on nutrients and suspended sediment, water years 1971-90: U.S. Geological Survey Water-Resources Investigations Report 96-4012, 165 p. Available Online
Robertson, Dale M., Saad, David A., and Wieben, Ann M., 2001, An alternative regionalization scheme for defining nutrient criteria for rivers and streams: U.S. Geological Survey Water-Resources Investigations Report 01-4073, 57 p. Available Online
Robertson, Dale M., Schwarz, Gregory E., Saad, David A., and Alexander, Richard B., 2009, Incorporating uncertainty into the ranking of SPARROW model nutrient yields from the Mississippi/Atchafalaya River Basin watersheds: Journal of the American Water Resources Association, vol. 45, no. 2, April 2009, p. 534-549. doi: 10.1111/j.1752-1688.2009.00310.x Available Online
Robinson, J.L., and Journey, C.A., 2004, Geochemical characterization of shallow ground water in the Eutaw aquifer, Montgomery, Alabama: Journal of the American Water Resources Association, vol. 40, no. 4, p. 851-861. Available Online
Robinson, James L., 2003, Comparison between agricultural and urban ground-water quality in the Mobile River Basin, 1999-2001: U.S. Geological Survey Water-Resources Investigations Report 03-4182, 38 p. Available Online
Robinson, James L., 2002, Ground-water quality beneath an urban residential and commercial area, Montgomery, Alabama, 1999-2000: U.S. Geological Survey Water-Resources Investigations Report 02-4052, 37 p. Available Online
Robinson, Keith W., Campbell, Jean P., and Jaworski, Norbert A., 2003, Water-quality trends in New England rivers during the 20th century: U.S. Geological Survey Water-Resources Investigations Report 03-4012, 20 p. Available Online
Robinson, Keith W., Flanagan, Sarah M., Ayotte, Joseph D., Campo, Kimberly W., Chalmers, Ann, Coles, James F., and Cuffney, Thomas F., 2004, Water quality in the New England coastal basins, Maine, New Hampshire, Massachusetts, and Rhode Island, 1999-2001: U.S. Geological Survey Circular 1226, 38 p. Available Online
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