Fractionation of phosphate in sediments of four representative mangrove stages (French Guiana)

  title={Fractionation of phosphate in sediments of four representative mangrove stages (French Guiana)},
  author={Andr{\'e} C. Fabre and Fr. Fromard and Val{\'e}rie Trichon},
Phosphate was fractionated in Guianese mangrove sediments. Fe(OOH)≈P was extracted using a Ca-EDTA + Na-dithionite solution buffered at pH 8. CaCO3≈P was extracted using Na2-EDTA solution at pH 4.5. Next, Acid Soluble Organic Phosphate (ASOP) was extracted by H2SO4 0.5 N. Finally, Residual Organic Phosphate (ROP) was digested with H2SO4 + H2O2. Four representative mangrove stages have been studied: sea edge pioneer mangroves, mature coastal mangroves, mixed riverine mangroves, and declining to… CONTINUE READING


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