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Soils of the Beryl-Enterprise Area, Utah: Their Origin, Properties, and Classification¹

ABSTRACT

Because of low average rainfall, sparse vegetative cover, and relatively gentle slopes, soil differences in the Beryl-Enterprise area strongly reflect parent material and time factors of soil development. In the better drained, more recent, and somewhat older alluvial fan and terrace positions free of excess soluble salts, carbonates, and exchangeable sodium, soil development appears to progress from the Alluvial great soil group through various stages of the Sierozems, called minimal, medial, and maximal. Removal of lime from the A₁ and B₂ horizons, increasing clay formation and concentration in the B₂ horizon, increasing lime in the C_ea, and decreasing reaction in the A₁ and B₂ accompany these stages. In areas relatively high in carbonates, profile development has been dominated by lime movement and concentration in the C_ea horizon. The soils are calcareous to the surface and show little evidence of clay formation, movement, or concentration. These soils are classified as Calcisols. Where excessive soluble salts, exchangeable sodium, or both have been an important factor, Solonetz development has resulted. Such soils are confined to the basin area and to minimal and medial stages of development.

¹ Contribution from the Soil Survey, Soil Conservation Service, U.S.D.A. Presented before Div. V, Soil Science Society of America, Davis, Calif., Aug. 17, 1955.

² Soil Correlator (Interpretations), Far Western States, Soil Survey, Soil Conservation Service, U.S.D.A. Grateful acknowledgment is made to Roy W. Simonson for advice and assistance in the preparation of this paper.

Received for publication January 14, 1956.