Fig. 2. Relationship between foliar SO₄-S and B horizon soluble inorganic SO₄ concentrations. Dotted lines indicate soil soluble inorganic SO₄ concentration at 80 mg kg^-1 foliar SO₄-S. Site abbreviations are ML, Meadow Lake; TC, Tsus Creek; CC, Cluculz Creek; CL, Cobb Lake; BR, Bowron River; BC, Blackwater Creek; GC, Gregg Creek; UGC, Upper Gold Creek; LGC, Lower Gold Creek; CF, Canal Flats.