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Fig. 7. Spatial distribution of: (a) resident soil chloride concentrations with respect to layering; (b) mass recovery (Mj); (c) mean travel depth (Ej[z]); and (d) variance (Vj[z]) of the perpendicular transect. The dashed vertical lines represent plot boundaries shown in Fig. 1. The dotted lines on the mass recovery plot (b) represent estimated background mass of chloride and the calculated mass distribution following potash (KCl) applications in 1966 and 1971.
