Fig. 1. Prediction of B adsorption with the constant capacitance model: (a) Dennis soil; (b) Mansic soil; (c) Osage soil; (d) Pond Creek soil; (e) Pratt soil; (f) Summit soil. Experimental data are represented by circles (A horizon) and squares (B horizon). Model predictions are represented by solid lines (A horizon) and dashed lines (B horizon).