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Effectiveness of Nitrate Reduction in Riparian Buffers: A Riparian Buffer Hydrologic and Biogeochemical Evaluation

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010  1009104.(doi:10.13031/2013.29967)
Authors:   Tiffany L Messer, Michael Burchell II, PhD, Amey Tilak, Jacob Wiseman
Keywords:   Riparian buffer, denitrification, groundwater dilution, CREP, nitrate

Defining ideal placement of buffers enrolled in NC CREP could maximize stream miles protected, to improve downstream water quality in sensitive streams and estuaries. During the past five years effects on nitrate reduction efficiency of a riparian buffer enrolled in the North Carolina Reserve Enhancement Program (NC CREP) has been evaluated. The buffer width was 40-45 m, and groundwater monitoring well nests were installed in three transects within the buffer. Each well nest contained a shallow (1.5-2.1 m) and deep (2.7-3.4 m) well. Additional wells were installed in the deeper aquifer to measure the quality of that water for comparison to the more shallow wells. Upslope agricultural practices have included soybeans, peanuts, cotton and corn.

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