This element may
not have been brought into the soil by land cover via organic matter
but probably by the mineral fraction (weathered from parent rock).
The rapid mineralization of vegetal material, left on surface soil
after clearing had certainly improve soil chemical quality under FR.
Accumulation of organic matter observed under Gilbertiodendron
dewevrei forest (FG) seems to be due to poor C andNmineralization
caused by higher Al content (6.03 cmol/kg).