Correlations of broadly-defined C
types with KOC of the HF-treated soils goes some way toward
understanding the influence of the nature of soil organic matter
on KOC. In particular, the proportion of aryl C accounted for 40%
of KOC variability. Importantly, this study demonstrates a consistent
effect of the nature of soil organic matter on KOC can be
detected across a diverse range of soils, even though this effect is
diminished when compared to studies involving less diverse soils
(e.g. Ahangar et al. (2008a, b)).