Fig. 9.

Site G, pore-water nutrient profiles (mmol m⁻³), model-data comparison. Observations, average over three replicates (error bars omitted for clarity). Model results are depth averaged concentrations. Solid line run with permeable modification (Model G); Dashed line no permeable sediment modification (Model G0). Nitrate, concentrations are zero below the nitrate penetration depth (e.g. run G, G0 in Aug 2015)