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Groundwater-derived Nitrogen and Phosphorus Inputs to the Satilla River Estuary: Impact of coastal ecosystem health
PIs: Samantha B. Joye (Dept. of Marine Sciences, Univ. of Georgia), Carolyn D. Ruppel (Dept. of Earth and Atmospheric Sciences, Georgia Inst. of Tech.), and Williard S. Moore (Dept. of Geological Sciences, Univ. of South Carolina)
Support: Sea Grant College Program
Timeframe: 2002 - 2005
1) To compare and contrast groundwater-surface water interactions at two sites, Dover Bluff and White Oak Creek, which represent developed and relatively undeveloped endmembers;
2) To characterize the geochemical signature of groundwater, sediment pore water and surface waters within each site;
3) To estimate groundwater-derived nutrient inputs to the Satilla River estuary;
4) To evaluate the capacity for sediment denitrification to remove groundwater-derived nitrogen at the marsh-estuary interface;
5) To document the impact of groundwater-derived nutrients on primary production in tidal creek waters;
6) To complete regional (Southeastern U.S.) and international (Netherlands) comparisons to constrain the magnitude and importance of groundwater-derived nutrient inputs to coastal waters.
Progress and Findings:
Publications in preparation:
Joye, S. B., R. Y. Lee, R. J. Wisniewski, W. P. Porubsky, N. B. Weston, I. Valiela and P. Van Cappellen (in prep). Environmental controls on denitrification and nitrous oxide production in coastal sediments.
Porubsky, W. P., N. B. Weston and S. B. Joye (in prep) Dissimilatory nitrate reduction to ammonium in near shore sediments.
Joye, S. B., W.
P. Porubsky, N. B. Weston, W. S. Moore, C. Meile and C. D. Ruppel (in prep)
Groundwater as a source of labile nutrients and organic materials to coastal
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|This page was updated October 13, 2006|