Changes in phosphorus biogeochemistry along an estuarine salinity gradient : The iron conveyer belt

@inproceedings{Jordan2007ChangesIP,
  title={Changes in phosphorus biogeochemistry along an estuarine salinity gradient : The iron conveyer belt},
  author={Thomas E. Jordan and Jeffrey C. Cornwell and Walter R. Boynton and Jon T. Anderson},
  year={2007}
}
We used sequential extractions to quantify different forms of particulate phosphorus (PP) in sediments along the salinity gradient of the Patuxent River estuary. About 50–90% of the PP was phosphate bound to iron oxides (Fe-P), and 8–30% was organic P (org-P). Loosely sorbed phosphate (sorb-P), detrital apatite, and authigenic plus biogenic apatite each made up ,10% of the PP. Suspended sediments from the watershed and deposited sediments in tidal freshwater had the highest concentrations of Fe… CONTINUE READING
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