Pedogenic horizons surface horizon

The soil profile is the manifestation of the soilforming or pedogenic processes on the geological substratum or parent material (Fig. 7-1). The soil profile is an assemblage of horizons displayed by a vertical cut at the surface. Horizons are layer-like, more or less parallel to the surface, and differ from each other in morphology, composition, and consistency (Table 7-1). 

Entisols. Mineral soils that have no distinct subsurface diagnostic horizons within 1 m of the soil surface. Entisols have little or no evidence of the development of pedogenic horizons. Most Entisols have no diagnostic horizons other than an ochric epipedon. Entisols are divided into five suborders Aquents, Arents, Psamments, Fluvents, and Orthents. 

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