Presentation on theme: "Spatial Distribution of Different Forms of Sedimentary Phosphorus in Florida Bay: sequential extraction approach Jia-Zhong Zhang and Charles Fischer Ocean."— Presentation transcript:
Spatial Distribution of Different Forms of Sedimentary Phosphorus in Florida Bay: sequential extraction approach Jia-Zhong Zhang and Charles Fischer Ocean Chemistry Division, AOML, NOAA, Miami, FL 33149
Percentage of Different Forms of Sedimentary Phosphorus
Summary Strong W-E spatial gradient in TSP and every forms of sedimentary P CaCO 3 -bound P accounts 44% of TSP Refractory organic P constitutes 24% of TSP Iron-bound P accounts 19% of TSP Exchangeable P accounts 8% of TSP
Sunset Acknowledgements: This research was supported by NOAA’s South Florida Ecosystem Restoration, Prediction and Modeling Program Recent Publications: Zhang, Jia-Zhong, Charles J. Fischer, and Peter B. Ortner, (2004) Potential availability of sedimentary phosphorus to sediment resuspension in Florida Bay, Global Biogeochemical Cycles. 18, GB4008, doi: 10.1029/2004GB002255, 2004. Zhang, J.-Z., J. Chi (2002) Automated analysis of nanomolar concentrations of phosphate in natural waters with liquid waveguide, Environmental Science & Technology, 36(5): 1048-1053.
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