SSSAJ -- Mikutta et al. 69 (1): 120 Figure IG2

Click on image to view larger version.

Fig. 2. (a) Relation between the concentrations of residual organic C and oxalate-extractable Fe plus Al in fine (•, <0.2 µm) and coarse clay ( ${circ}$ , 0.2–2 µm) fractions of 12 acid subsoil samples with different mineralogy after treatment with 6% (wt/wt) NaOCl. (b) Relationship between the organic C loading of mineral surfaces and the amount of removable organic C (data adopted from Mikutta et al., 2004).