2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM

Session No. 67
Tuesday, 7 October 2008: 8:00 AM-6:00 PM

J21. Subsurface Fate and Transport of Agricultural Contaminants (Posters)

GSA Hydrogeology Division; GSA Geology and Society Division; S02 Soil Chemistry; S06 Soil & Water Management & Conservation; S11 Soils & Environmental Quality

Authors will be present from 2:45 to 4:45 PM.

 

Paper #
Booth #
1
22
Field Evaluation of Preferential Flow In Agricultural Soils of the Mississippi Delta
PERKINS, Kim S.1, NIMMO, John R.1, COUPE, Richard H.2, ROSE, Claire E.3 and MANNING, Michael A.2, (1)USGS, 345 Middlefield Rd, MS-421, Menlo Park, CA 94025, (2)U. S. Geol Survey, 308 South Airport Road, Pearl, MS 39208-6649, (3)U. S. Geol Survey, Pearl, MS 39208-6649, kperkins@usgs.gov, kperkins@usgs.gov
2
23
An Advection-Diffusion Model for Observed Solid Phase Transport of Roxarsone by Earthworms
COVEY, Aaron K., SAVAGE, Kaye S. and FURBISH, David J., Earth and Environmental Sciences, Vanderbilt University, VU Station B 35-1705, 2301 Vanderbilt Place, Nashville, TN 37235-1705, a.covey@vanderbilt.edu, a.covey@vanderbilt.edu
3
24
Nitrate, Ammonium, and Phosphate Fluxes to Subsurface Drains In the Eastern Cornbelt: N Source and Rotation
HERNANDEZ-RAMIREZ, Guillermo1, BROUDER, Sylvie M.2, RUARK, Matthew3 and TURCO, Ronald F.2, (1)USDA-ARS National Soil Tilth Laboratory, Ames, IA 50011-3120, (2)Agronomy, Purdue University, 915 West State Street, West Lafayette, IN 47907-2054, (3)Plant Sciences Department, University of CA, Davis, 1 Shields Ave, Davis, CA 95616, Guillermo.Hernandez@ARS.USDA.GOV, Guillermo.Hernandez@ARS.USDA.GOV
4
25
Mitigating Nitrate Levels in Agricultural Runoff with Barrier Crops
CASSEL S, Florence1, GOORAHOO, Dave2, ADHIKARI, Diganta1 and ZOLDOSKE, David1, (1)Center for Irrigation Technology, California State University, Fresno, 5370 N. Chestnut Ave., M/S OF18, Fresno, CA 93740, (2)Plant Science Department, California State University, Fresno, 2415 E. San Ramon Ave., M/S AS72, Fresno, CA 93740, fcasselss@csufresno.edu, fcasselss@csufresno.edu
5
26
Nitrogen Loading in Soils Irrigated with Tertiary Treated Municipal Wastewater
GOORAHOO, Dave1, CASSEL S, Florence2, ADHIKARI, Diganta2 and ZOLDOSKE, David2, (1)Plant Science Department, California State University, Fresno, 2415 E. San Ramon Ave., M/S AS72, Fresno, CA 93740, (2)Center for Irrigation Technology, California State University, Fresno, 5370 N. Chestnut Ave., M/S OF18, Fresno, CA 93740, dgooraho@csufresno.edu, dgooraho@csufresno.edu
6
27
Impacts of Land Use Change on Unsaturated Zone Nitrate Cycling in the Southern High Plains, USA
REEDY, Robert C., Jackson School of Geosciences, The University of Texas at Austin, 10100 Burnet Rd, Bldg 130, Austin, TX 78758-4445 and SCANLON, Bridget R., Jackson School of Geosciences, Univ of Texas at Austin, 10100 Burnet Rd, Bldg. 130, Austin, TX 78758, bob.reedy@beg.utexas.edu, bob.reedy@beg.utexas.edu
7
28
Unsaturated Zone Profiles Linking Land Surface Applications and Groundwater Nitrate Contamination: Case Studies Seymour Aquifers, Texas
OLYPHANT, Jeffrey, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78705 and SCANLON, Bridget R., Jackson School of Geosciences, Univ of Texas at Austin, 10100 Burnet Rd, Bldg. 130, Austin, TX 78758, jolyphan@mail.utexas.edu, jolyphan@mail.utexas.edu
8
29
Fate and Transport of Inorganic Nitrogen along Groundwater Flow Paths in a Coastal Aquifer System
CONNORS Jr, James J., Earth Sciences, Geology, University of South Alabama, LSCB 136, Mobile, AL 36688, jconnors@usouthal.edu, jconnors@usouthal.edu
9
30
Nitrate Reaction Rates and Stable Isotope Fractionation In An Alluvial Fan Aquifer, San Joaquin Valley, CA
GREEN, Christopher, US Geological Survey, 345 Middlefield Rd, Menlo Park, CA 94025 and BEKINS, Barbara A., U.S. Geological Survey, Menlo Park, CA 94025, ctgreen@usgs.gov, ctgreen@usgs.gov
10
31
Subsurface Pathways Dominate Streamflow Generation and Agrochemical Contamination in a Semi-Arid Agricultural Watershed: A Long-Term Environmental-Tracer Study
MORAVEC, Bryan G.1, KELLER, C. Kent1, SMITH, Jeffrey L.2 and EVANS, R. David3, (1)School of Earth and Environmental Sciences, Washington State University, P.O. Box 642812, Pullman, WA 99164-2812, (2)Crop and Soil Sciences, Washington State University, Johnson 225, Pullman, WA 99164-6421, (3)School of Biological Sciences, Washington State University, Abelson 335, Pullman, WA 99164-4236, bgmoravec@yahoo.com, bgmoravec@yahoo.com
11
32
Recovery of Hyporheic Denitrification Potential Following Maintenance Events in Agriculturally Modified Streams
HARRIS, Joyce Anne and VAN DER HOVEN, Stephen, Hydrogeology, Illinois State University, Campus Box 4400, Normal, IL 61761, jaharr2@ilstu.edu, jaharr2@ilstu.edu
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