Fig. 3. The amount P sorbed per unit dry-weight soil relative to the initial amount of P added to solution for 12 sampling points in riverine wetlands at Fond du Lac (FDL) and Pokegama (PK). Since the highest initial P concentration (32 µmol P L^-1) was 10 times higher than the next lowest concentration, the same data are repeated in the bottom panel without this concentration

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