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The Influence of Microclimate on the Morphology of Certain Soils of the Allegheny Plateau of Ohio¹

ABSTRACT

Transect studies of soil sequences have been made across four northwest-southeast oriented valleys in southeastern Ohio. In general, soils occurring on southwestfacing slopes have an appreciably thinner A₁ and more strongly developed A₂ and B horizons than in the soils on the northeast-facing slopes. The upper solum of the soils on the southwest facing slopes is also more acid and has wider C/N ratios. The differences noted in the soils appear to be closely related to the different microclimatic regimes and associated differences in vegetation. Physical and chemical data on soils are included.

¹ Contribution from the Department of Agronomy, Ohio Agr. Exp. Sta., Wooster, State Project 106, Journal Paper No. 38–61, and Division of Lands and Soils, Ohio Department of Natural Resources. Presented before Div. V, Soil Science Society of America, at Lafayette, Ind., Aug. 6, 1958.

² Soil survey party chief, Division of Lands and Soils, Ohio Department of Natural Resources; Professor and Assistant Professor, Department of Agronomy, Ohio Agr. Exp. Sta., respectively.

Received for publication May 20, 1961. Accepted for publication October 12, 1961.