The B horizon of soils that weak profile development Incorrect although common terminology, inherited from the days when soil was seen only as a ploughed layer, defines it as the soil below plough depth in which roots normally grow
A collective and general term for the layers of soil below the uppermost layer or topsoil It can consist of sand, silt and clay but has little, if any, humus or other organic matter Subsoil provides structure, holds moisture, and is a good foothold for rooting plants
- The part of the soil profile beneath the surface soil that has been altered from its original geologic characteristics In many instances, it is called a "B horizon "
A layer of soil beneath the topsoil that has lower organic content and higher concentrations of fine mineral particles; often contains soluble compounds and clay particles carried down by percolating water
the mineral-rich layer of the soil, lying underneath topsoil and above regolith from which it is derived; weathered to a stage where the parent material (rock or sediment) or no longer recognisable
The part of the soil profile beneath the surface soil that has been altered from its original geologic characteristics In many instances, it is called a "B horizon "
The subsoil is a layer of earth that is just below the surface soil but above hard rock. the chalk subsoil on the site. the layer of soil between the ground's surface and the lower layer of hard rock. Layer (stratum) of earth immediately below the surface soil, consisting predominantly of minerals and leached materials such as iron and aluminum compounds. Humus remains and clay accumulate in subsoil, but the teeming macroscopic and microscopic organisms that make the topsoil rich with organic matter spend little time in the subsoil layer. Below the subsoil is a layer of partially disintegrated rock, and underlying bedrock. Stripping topsoil while clearing land for crop growth or commercial development exposes the subsoil and increases the rate of erosion of soil minerals