State of Soil Components in Natural Soils

Mineral components are modified not only by adsorption of organic matter but also due to binding or precipitation of inorganic solids, mainly due to weathering. 

Fixed capacity is related to clay + silt content 

FIGURE 14.2 Conceptual model of soil organic matter (SOM) content and proportion in soil particles and aggregates of a Charlottetown fine sandy loam illustrating different measurable capacity levels. (Reprinted from Carter, M. R., 2002, with kind permission of the 

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