Spodosols An order describing soils in which subsurface horizons contain amorphous materials comprising organic matter and compounds of aluminium and often iron that have accumulated illuvially (see ILLUVIATION). Such soils form in acid material, mainly coarse in texture, in humid cool to temperate climates, often beneath coniferous forests.

Spodosols An order of soils in which subsurface horizons contain amorphous materials comprising organic matter and compounds of aluminium and often iron that have accumulated illuvially (see illuviation). Such soils form in acid material, mainly coarse in texture, in humid cool to temperate climates, often beneath coniferous forests.

Spodosols Order of soils in which subsurface soil horizons contain amorphous materials comprising organic matter and compounds of aluminium and often iron that have accumulated illuvially. Such soils form in acid material, mainly coarse in texture, in humid, cool to temperate climates.