Which horizon is identified by the prefix 'Bhs'?

The horizon identified by the prefix 'Bhs' refers to a horizon that is characterized by the accumulation of organic matter and the leaching of nutrients, often associated with illuvial processes in specific types of soils. This particular designation indicates the presence of a subsoil horizon that is enriched with organic matter, often derived from surface litter and decomposed materials.

The 'B' indicates that it is a subsurface horizon, which typically accumulates materials leached down from overlying horizons. The 'hs' indicates the presence of humified organic matter, which gives the horizon its distinctive properties. This type of horizon typically retains moisture well and may support greater biological activity compared to other horizons.

The other mentioned horizons have different characteristics that do not align with the designation 'Bhs'. For instance, the argillic horizon is typically characterized by clay accumulation but lacks the specific organic enrichment indicated by 'hs'. The spodic horizon, on the other hand, is known for illuvial accumulation of iron and aluminum, often in acidic conditions, which again differs from the organic focus of 'Bhs'. Lastly, the entisolic horizon does not reflect a specific composition or processing as seen with the humus-rich characteristics noted in a Bhs horizon. Therefore,