Jump to main content or area navigation.

Contact Us

Ecosystems Research

James K. Bradshaw

My particular focus is soil physics.  I am interested in field- and modeling-based studies to investigate transport of nutrients, pathogens, and sediment at hillslope and watershed scales.  I will be modeling the hydrologic connectivity of stream-road networks, and associated sediment transport, in watersheds in the southeast United States.

Biographical Information

Name: James K. Bradshaw
Title: ORISE Post-doctoral Researcher

Contact Info:

Ecosystems Research Division
National Exposure Research Laboratory
Office of Research and Development
U.S. Environmental Protection Agency
960 College Station Road
Athens, GA  30605-2700

Telephone:  706-355-8244
Email:  bradshaw.ken@epa.gov

Education

Ph.D., Crop and Soil Sciences, University of Georgia, Athens, GA, 2012
M.S., Agronomy, University of Georgia, Athens, 2006
B.S., Agriculture, Ferrum College, Ferrum, VA 2004

Professional Experience

ORISE Post-doctoral Researcher, Ecosystems Research Division, Athens, GA, March 2012-present
Research Technician III/Graduate Research Assistant, The University of Georgia, Athens GA Nov 2006 -Feb 2012
Graduate Research Assistant, The University of Georgia, Athens, GA, 2004—2006.
Teaching Assistant - Soil Physics (CRSS 4600/6600) Lab, University of Georgia, Athens, GA, (2005-2006)
Marina Education Technician, Virginia Department of Health, Smith Mountain Lake, VA, May-Aug 2004

Professional Affiliations

Agronomy Society of America
Crop and Soil Science Society of America
Soil Science Society of America

Awards and Honors

Titmus Agriculture Scholarship 2001-2004
Ferrum College Academic Scholarship 2001-2004
Carrsville (Virginia) Ruritan Club Scholarship 2000-2001

Selected Publications and Presentations

Bradshaw, J.K. and D.E. Radcliffe. 2012. In Preparation. Nitrogen fate and transport in a conventional onsite wastewater treatment system installed in a clay soil:  Experimental results
Bradshaw, J.K. and D.E. Radcliffe. 2012. In Preparation Nitrogen fate and transport in a conventional onsite wastewater treatment system installed in a clay soil:  A nitrogen chain model.  
Bradshaw, J.K. and D.E. Radcliffe. Nitrogen dynamics in a Piedmont onsite wastewater treatment system. 2011.  In T. Rasmussen (ed.) Proc. Georgia Water Resources Conf., Athens, Georgia. 11-13 Apr. 2011. The University of Georgia Institute of Ecology, Athens, Georgia.
D.E. Radcliffe and J.K. Bradshaw. A nitrogen model for onsite wastewater systems. 2011. In T. Rasmussen (ed.) Proc. Georgia Water Resources Conf., Athens, Georgia. 11-13 Apr. 2011. The University of Georgia Institute of Ecology, Athens, Georgia.
Bradshaw, J.K. and D.E. Radcliffe. 2011. Nitrogen losses in a Piedmont onsite wastewater treatment system.  ASA-CSSA-SSSA Meetings, San Antonio, Texas, October, 2011.
D.E. Radcliffe and J.K. Bradshaw. 2011. A nitrogen chain model for on-site wastewater systems. ASA-CSSA-SSSA Meeting, San Antonio, Texas, October, 2011.
Badshaw, J.K. and D.E. Radcliffe. 2010.  Monitoring pressure heads and N concentrations in an onsite wastewater treatment system:  Year 1.  ASA-CSSA-SSSA Meetings, Long Beach, California, November, 2010.
D.E. Radcliffe, and J.K. Bradshaw. 2010. A reactive transport nitrogen model for onsite wastewater systems.  ASA-CSSA-SSSA Meetings, Long Beach, California, November, 2010.
Bradshaw, J.K. and D.E. Radcliffe. 2009. Time variable hydraulic potential surrounding an onsite wastewater drainfield.  ASA-CSSA-SSSA Meetings, Pittsburgh, Pennsylvania, November, 2009
Bradshaw, J.K. and D.E. Radcliffe. Evaluation of gravel-filled drainfield trench hydraulics and treatment efficiency. 2009.  Georgia Water Resources Conference, Athens, Georgia, April, 2009.
Bradshaw, J.K. and D.E. Radcliffe. 2009. Development of a field-scale protocol to measurethe LTAR of mature wastewater drainfields: Preliminary results. USDA-CSREES National Water Conference, St. Louis, Missouri, February, 2009.
Bradshaw, J.K. and D.E. Radcliffe. 2008. Onsite wastewater drainfield study—Griffin, GA. Soil Science Society of Georgia Meetings, Athens, Georgia, February, 2008.
Bradshaw, J.K., D.E. Radcliffe, L.M. Rissee, M. Bakker, C.R. Jackson, D. Markewitz, and K.P. Lichtenstein. 2006. Developing maximum contaminant loads for Georgia: Monitoring and modeling single land use watersheds. ASA-SSSA-CSSA Meetings, Indianapolis, Indiana, November, 2006.
Bradshaw, J.K., D.E. Radcliffe, L.M. Risse, M. Bakker, C.R. Jackson, D. Markewitz, and K.P. Lichtenstein. 2005. Model calibration for sediment concentration in a small agricultural watershed. ASA-SSSA-CSSA Meetings, Salt Lake City, Utah, November, 2005.
Lichtenstein, K.P., D.E. Radcliffe, M. Risse, M. Bakker, and J.K. Bradshaw. 2005. Land use effects on bacteria concentrations in six small Georgia watersheds. ASA-SSSA-CSSA Meeting, Salt Lake City, Utah, November, 2005.
Bradshaw, J.K., D.E. Radcliffe, K.P. Lichtenstein, M. Risse, M. Bakker, C.R. Jackson, and D. Markewitz. 2005. Land use effects on suspended sediment yield in six small Georgia watersheds. p. 486-489. In K.J. Hatcher (ed.) Proc. Georgia Water Resources Conf., Athens, GA. 25-27 Apr. 2005. The University of Georgia Institute of Ecology, Athens, Georgia.

Jump to main content.