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United States Department of Agriculture

Agricultural Research Service

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Randall G Williams (Randy)
Southeast Watershed Research
Agricultural Engineer

Phone: (229) 386-3895
Fax: (229) 386-7294
Room 7
2316 RAINWATER RD
TIFTON, GA, 31793


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Review of nitrogen fate models applicable to forest landscapes in the Southern U.S. - (Peer Reviewed Journal)
Amatya, D.M., Rossi, C.G., Saleh, A., Dai, Z., Youssef, M.A., Williams, R.G., Bosch, D.D., Chescheir, G.M., Sun, G., Skaggs, R.W., Trettin, C.C., Vance, E.D., Nettles, J.E., Tian, S. 2013. Review of nitrogen fate models applicable to forest landscapes in the Southern U.S.. Transactions of the ASABE. 56(5): 1731-1757.
Review of nitrogen fate models applicable to forest landscapes in the southern U.S. - (Peer Reviewed Journal)
Amatya, D.M., Rossi, C.G., Saleh, A., Dai, Z., Youssef, M., Williams, R.G., Bosch, D.D., Chescheir, G.M., Sun, G., Skaggs, R.W., Trettin, C.C., Vance, E.D., Nettles, J.E., Tian, S. 2013. Review of nitrogen fate models applicable to forest landscapes in the southern U.S. Transactions of the ASABE. 56(5):1731-1757.
Apex Sensitivity to Atrazine Dissipation Rate on Surface Runoff Loss Within a Coastal Zone in Southeastern Puerto Rico - (Abstract Only) - (27-Apr-13)
Apex Sensitivity to Atrazine Dissipation Rate on Surface Runoff Loss Within a Coastal Zone in Southeastern Puerto Rico - (Abstract Only) - (27-Apr-13)
Hydrology and water quality of a field and riparian buffer adjacent to a mangrove wetland in Jobos Bay Watershed, Puerto Rico - (Peer Reviewed Journal)
Williams, C.O., Lowrance, R.R., Bosch, D.D., Williams, J.R., Dieppa, A., Hubbard, R.K., Mas, E., Sotomayor, D., Potter, T.L., Steglich, E.M., Strickland, T.C., Williams, R.G. 2013. Hydrology and water quality of a field and riparian buffer adjacent to a mangrove wetland in Jobos Bay Watershed, Puerto Rico. Ecological Engineering. http://dx.doi.org/10.1016/j.ecoleng.2012.09.005.
Estimating pesticide retention efficacy for edge-of-field buffers using the Riparian Ecosystem Management Model (REMM) in a Southeastern Plains Landscape - (Book / Chapter)
Potter, T.L., Lowrance, R.R., Bosch, D.D., Williams, R.G. 2011. Estimating pesticide retention efficacy for edge-of-field buffers using the Riparian Ecosystem Management Model (REMM) in a Southeastern Plains Landscape. In: Goh, K.; Bret, B.; Gan, J; Potter, T.L., editors, Pesticide Mitagation Strategies for Surface Water Quality. American Chemical Society Symposium Series No. 1075, pp 259-271.
A Combined Modeling Approach to Evaluate Water Quality Benefits of Riparian Buffers in the Jobos Bay Watershed - (Abstract Only)
Williams, C.O., Lowrance, R.R., Williams, R.G., Williams, J., Dieppa, A., Sotomayor-Ramirez, D., Mas, E., Strickland, T.C., Hubbard, R.K., Bosch, D.D., Potter, T.L. 2011. A Combined Modeling Approach to Evaluate Water Quality Benefits of Riparian Buffers in the Jobos Bay Watershed [abstract]. Aquatic Sciences - Research Across Boundaries.
Estimating Pesticide Retention Efficacy for Edge of Field Buffers Using the Riparian Ecosystem Management Model (REMM) in Southern Atlantic Coastal Plain Landscapes - (Abstract Only)
Potter, T.L., Williams, R.G., Lowrance, R.R., Bosch, D.D. 2010. Estimating Pesticide Retention Efficacy for Edge of Field Buffers Using the Riparian Ecosystem Management Model (REMM) in Southern Atlantic Coastal Plain Landscapes [abstract]. American Chemical Society Spring 2010 National Meeting and Exposition, San Francisco, California, 03/21-25/2010.
Surface Runoff Contribution of Nitrogen During Storm Events in a Forested Watershed: Application of the Riparian Ecosystem Management Model (Remm) - (Peer Reviewed Journal)
Bhat, S., Hatfield, K., Jacobs, J., Lowrance, R.R., Williams, R.G. 2007. Surface runoff contribution of nitrogen during storm events in a forested watershed: Application of the Riparian Ecosystem Management Model (REMM). Biogeochemistry. 85(3):253-262.
Integration of Annagnps and Remm for Watershed Riparian Buffer System Assessment - (Peer Reviewed Journal)
Yuan, Y., Bingner, R.L., Williams, R.G., Lowrance, R.R., Bosch, D.D., Sheridan, J.M. 2007. Integration of AnnAGNPS and REMM for watershed riparian buffer system assessment. International Journal of Sediment Research, 22(1): 60-69.
Water quality and hydrology in farm-scale coastal plain watersheds: Effects of agriculture, impoundments, and riparian zones - (Peer Reviewed Journal)
Lowrance, R.R., Sheridan, J.M., Williams, R.G., Bosch, D.D., Sullivan, D.G., Blanchett, D.R. 2007. Water quality and hydrology in farm-scale coastal plain watersheds: Effects of agriculture, impoundments, and riparian zones. Journal of Soil and Water Conservation Society. 62(2):65-76.
Modeling Denitrification in Coastal Plain Riparian Forests - (Proceedings) - (15-Mar-06)
Remm: a Simulaton Model for Remediation of Pesticide Contaminants in Runoff and Leachate Water by Riparian Buffer Systems - (Abstract Only) - (15-Dec-05)
A Comprehensive Stream-Riparian Corridor Model to Study the Impact of Riparian Buffers on Channel and Edge-of-Field Processes: Simulation of Streambank Hydrology - (Proceedings)
Langendoen, E.J., Simon, A., Pollen, N.L., Williams, R.G., Lowrance, R.R. 2006. A comprehensive stream-riparian corridor model to study the impact of riparian buffers on channel and edge-of-field processes: simulation of streambank hydrology. In: Proceedings of the 3rd Federal Interagency Hydrologic Modeling Conference, April 2-6, 2006, Reno, Nevada. CDROM.
Quantifying the Sensitivity of the Riparian Ecosystem Management Model (Remm) to Changes in Climate and Buffer Characteristics Common to Conservation Practices - (Peer Reviewed Journal)
Graff, C.D., Sadeghi, A.M., Lowrance, R.R., Williams, R.G. 2005. Quantifying the sensitivity of the riparian ecosystem management model (REMM) to changes in climate and buffer characteristics common to conservation practices.Transactions of the ASAE. 48(4):1377-1387.
Modeling the Impact of Riparian Buffer Systems on Bank Stability of An Incised Stream - (Proceedings)
Langendoen, E.J., Lowrance, R.R., Williams, R.G., Pollen, N.L., Simon, A. 2005. Modeling the impact of riparian buffer systems on bank stability of an incised stream. Environmental and Water Resources Institute World Congress Proceedings. Available: http://ascelibrary.org/2005conferences/ASCECP000173040792.
Sensitivity of the Riparian Ecosystem Management Mode (Remm) to Perturbations in Vegetation Parameters: Evaluating the Effectiveness of Specific Conservation Practices - (Abstract Only)
Graff, C.D., Sadeghi, A.M., Lowrance, R.R., Williams, R.G. 2004. Sensitivity of the Riparian Ecosystem Management Mode (REMM) to perturbations in vegetation parameters: evaluating the effectiveness of specific conservation practices [abstract]. ASA-CSSA-SSSA Annual Meeting. 2004 CDROM.
Using the Riparian Ecosystem Management Model (Remm) to Assess the Effect of Vegetated Filter Strips on Phosphoros Losses in Runoff - (Abstract Only)
Gilbert, J.K., Sims, T.J., Lowrance, R.R., Williams, R.G. 2004. Using the riparian ecosystem management model (remm) to assess the effect of vegetated filter strips on phosphoros losses in runoff. Proceedings of the Soil Science Society of America, Madison, WI, Abstract 509-600441, SSSA Proceedings (Comopact Disk).
Use of Remm to Compare Buffer Systems - (Abstract Only)
Williams,R.G., Lowrance,R.R., Gilbert,J., Sheridan,J.M., Bosch,D.D., Hubbard,R.K. Use of remm to compare buffer systems. In: R.Lowrance (ed.) Riaprian Ecosystems and Buffers: Multi-scale structure, function, and management. 2004. American Water Resources Association Conference Proceedings, Middleburg, VA. (compact disc)
Integration of Annagnps and Remm for Watershed Riparian Buffer System Assessment - (Proceedings)
Yuan, Y., Bingner, R.L., Williams, R.G., Lowrance, R.R., Bosch, D.D., Sheridan, J.M. 2004. Integration of annagnps and remm for watershed riparian buffer system assessment. In: Proceedings American Water Resources Association Summer Specialty Conference "Riparian Ecosystems and Buffers: Multi-Scale Structure, Function, and Management", June 28-30, 2004, Olympic Valley, California. CDROM.
Groundwater Storage Affect on Streamflow for a Southeastern Coastal Plain Watershed - (Peer Reviewed Journal)
Bosch, D.D., Lowrance, R.R., Sheridan, J.M., Williams, R.G., 2003. Groundwater storage affect on streamflow for a Southeastern Coastal Plain watershed. GROUND WATER. 41(7):903-912.
Evaluation of USDA Conservation Buffer Systems for the Coastal Plain Using the Riparian Ecosystem Management Model (Remm) - (Peer Reviewed Journal)
LOWRANCE, R.R., WILLIAMS, R.G., INAMDAR, S., BOSCH, D.D., SHERIDAN, J.M. EVALUATION OF USDA CONSERVATION BUFFER SYSTEMS FOR THE COASTAL PLAIN USING THE RIPARIAN ECOSYSTEM MANAGEMENT MODEL (REMM). JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION. 37(6):1445-1455. 2002.
Dissolved Oxygen Concentrations in Three Coastal Plain Watersheds: Implications for Tmdl's - (Proceedings)
Bosch, D.D., Lowrance, R.R., Vellidis, G., Sheridan, J.M., Williams, R.G. 2002 Dissolved oxygen concentrations in three coastal plain watersheds: implications for tmdl's. Watershed Management Conference Proceedings of the Total Maximum Daily Load (TMDL) Environmental Regulations Conference. Ali Saleh (ed). Fort Worth, Texas, March 11-13, 2002. pp. 92.
Peanut Cropping-Tillage System Effects on Runoff and Sediment Yield - (Peer Reviewed Journal)
Truman, C.C., Williams, R.G. 2001. Peanut Cropping-Tillage System Effects on Runoff and Sediment Yield. Journal of Soil and Water Conservation Society. 56:152-159.
Using Gleams and Remm to Estimate Nutrient Movement from a Spray Field and Through a Riparian Forest - (Peer Reviewed Journal)
Gerwig, B., Stone, K.C., Williams, R.G., Watts, D.W., Novak, J.M. 2001. Using GLEAMS and REMM to estimate nutrient movement from a spray field and through a riparian forest. Transactions of the ASAE. 44(3):505-512.
Effects of peanut cropping practices and canopy cover conditions on runoff and sediment yield - (Peer Reviewed Journal)
Truman, C.C., Williams, R.G. 2001. Peanut cropping-tillage system effects on runoff and sediment yield. Journal of Soil and Water Conservation Society. 56:152-159.
Simulation of Nonpoint Source Pollution Control Using the Riparian Ecosystem Management Model (Remm) - (Proceedings)
Williams, R.G., Lowrance, R.R., Inamdar, S.P. 2000. Simulation of nonpoint source pollution control using the riparian ecosystem management model (remm). American Water Resources Association Conference Proceedings 1000. P. 433-438.
Research on Pollution Control by Riparian Buffers in the Georgia Coastal Plain - (Abstract Only)
LOWRANCE, R.R., VELLIDIS, G., HUBBARD, R.K., SHERIDAN, J.M., BOSCH, D.D., WILLIAMS, R.G., WAUCHOPE, R.D., THOMAS, D.L. RESEARCH ON POLLUTION CONTROL BY RIPARIAN BUFFERS IN THE GEORGIA COASTAL PLAIN. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. p. 380, Abstract #45. 2000.
Hydrologic Response of Coastal Plain Watersheds - (Proceedings)
SHERIDAN, J.M., BOSCH, D.D., WILLIAMS, R.G. HYDROLOGIC RESPONSE OF COASTAL PLAIN WATERSHEDS. ASAE ANNUAL INTERNATIONAL MEETING. ASAE #992121. 1999.
Evaluation of the Riparian Ecosystem Management Model (Remm): I. Hydrology - (Peer Reviewed Journal)
INAMDAR, S.P., SHERIDAN, J.M., WILLIAMS, R.G., BOSCH, D.D., LOWRANCE, R.R., ALTIER, L.S., THOMAS, D.L. EVALUATION OF THE RIPARIAN ECOSYSTEM MANAGEMENT MODEL (REMM): I. HYDROLOGY. TRANSACTIONS OF THE AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS. 42(6):1679-1689. 2000.
Riparian Ecosystem Management Model (Remm): Ii. Testing of the Water Quality and Nutrient Cycling Component for a Coastal Plain Riparian System - (Peer Reviewed Journal)
INAMDAR, S.P., LOWRANCE, R.R., ALTIER, L.S., WILLIAMS, R.G., HUBBARD, R.K. RIPARIAN ECOSYSTEM MANAGEMENT MODEL (REMM): II. TESTING OF THE WATER QUALITY AND NUTRIENT CYCLING COMPONENT FOR A COASTAL PLAIN RIPARIAN SYSTEM. TRANSACTIONS OF THE AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS. 42(6):1691-1707. 1999.
Nutrient Balance for Triple-Crop Forage Production Systems Fertilized with Dairy Manure Or Commercial Fertilizer - (Proceedings)
Newton, G.L., Gascho, G.J., Vellidis, G., Gates, R.N., Hubbard, R.K., Lowrance, R.R., Johnson, A.W., Hudson, III, W.G., Sumner, H.R., Williams, R.G. 1999. Nutrient balance for triple-crop forage production systems fertilized with dairy manure or commercial fertilizer. Georgia Water Resources Conf. 3/30-31, 1999, Athens, GA. Meeting Abstract Pp. 279-282.
Using Gleams and Remm to Estimate Nutrient Movement from a Spray Field and Through a Riparian Forest - (Proceedings) - (15-Nov-98)
Last Modified: 10/24/2014
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