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10 June 2019 Influence of Freeze-Thaw Cycle on Silt Loam Soil in Sagebrush Steppe of Northeastern Oregon
L.L. Larson, G.L. Kiemnec, D.E. Johnson
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Abstract

Soil freeze-thaw cycles can result in soil surface crusting, pedestaling, and movement. This study was undertaken to quantify the amount of heaving and soil moisture migration in a silt loam soil from the sagebrush steppe. Soil columns containing silt loam soil with moisture treatments of 26%, 34%, 42%, or 50% water content and initial temperatures of 9° C or 20° C were exposed to – 7° C for 18 h, which did not completely freeze the soil to full depth. Moisture redistribution amounts of 10% to 20% were observed in treatments above field capacity. Surface saturation was observed after freezing with treatments of 42% and 50% water volume. Soil heaving of up to 0.5 cm was observed after one freezing event.

© 2018 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
L.L. Larson, G.L. Kiemnec, and D.E. Johnson "Influence of Freeze-Thaw Cycle on Silt Loam Soil in Sagebrush Steppe of Northeastern Oregon," Rangeland Ecology and Management 72(1), 69-72, (10 June 2019). https://doi.org/10.1016/j.rama.2018.07.013
Received: 11 March 2018; Accepted: 18 July 2018; Published: 10 June 2019
KEYWORDS
frost heaving
sagebrush steppe
Soil freezing
solifluction
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