B Horizon

The B horizon, also known as the subsoil, is a layer of soil beneath the topsoil (A horizon). It often contains minerals, clay, and nutrients that have leached down from above. This layer tends to be denser and less rich in organic material than the topsoil. The B horizon can vary in color and composition depending on the soil type and environmental factors. It plays a crucial role in supporting plant roots and influencing groundwater movement, serving as a transition zone between the surface layers and the deeper, less weathered soil or bedrock below.