As part of a 6-year, multi-million dollar, multi-disciplinary project involving several departments at Ohio State, the U.S. Geological Survey, and the U.S. Department of Agriculture,
three 10-hectacre fields were instrumented at a farm in
southern Ohio to evaluate the impact of different crop-
management
practices on groundwater quality. Two tracer tests were
performed to help researchers determine transport parameters
in the unsaturated and saturated zones. These results, plus
other field data, were incorporated into flow and transport
models to evaluate the impact of differing pesticide application rates used on the 10-hectacre plots.
More information on this project can be obtained from:
Springer, A.E., E.S. Bair, and D. Beak, 1993. Transport of atrazine, alachlor, and nitrate relative to the tracer bromide at the Ohio Management Systems Evaluation Area: Proceedings, Agricultural Research to Protect Water Quality, Soil and Water Conservation Society, Minneapolis, Minnesota, p. 102-104.
Finton, C.D., and E.S. Bair, 1993. The effects of scale-dependent permeability values on the characterization of advective transport of solutes at the Ohio MSEA: Proceedings, Agricultural Research to Protect Water Quality, Soil and Water Conservation Society, Minneapolis, Minnesota, p. 215-218.