90 



9 Or A 1 



80 



> 



50- 



40 



S 



(ppm) 



30 



20 



10 



L 



B2 



A2 



v, 



Total S 



Extractable sulfates 



B3 



C 



50 100 150 



Horizon depth (cm) 



200 



Fig. 7. Mean distribution of total and extractable sulfate 

 sulfur in nine Florida Spodosols. 



