Abstract:Phosphorus (P) fractionation is critical to understand P cycling in sediment and across the sediment-water interface. To examine the effect of pretreatment on the P fractionation of anaerobic sediment, anaerobic sediment samples were treated by oven-drying, airdrying, and freeze-drying, and a fresh sediment sample was used as a control treatment. A five-step sequential extraction procedure was applied, and six P fractions were examined. The results indicated that P NaCl (P extracted by NaCl), P BD (P extracted… Show more
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