Loam

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Three layers of subsurface loam; surface layer is dark brown fine sandy loam, subsurface layer is pale brown fine sandy loam, subsoil is red clay loam and sandy clay loam.

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Soil types by clay, silt and sand composition as used by the United States Department of Agriculture

Loam is soil made mostly of sand and silt:

Sand: particle size > 63 micrometres (0.0025 in)
Silt: particle size > 2 micrometres (7.9×10⁻⁵ in)
Clay: small amount: particle size < 2 micrometres (7.9×10⁻⁵ in)

By weight, it is about 40–40–20% concentration of sand–silt–clay, respectively.^[1] These proportions vary, and give different types of loam soils: sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam.^[1]

References[change]

↑ ^1.0 ^1.1 Kaufmann, Robert K.; Cutler J. Cleveland (2008). Environmental Science. McGraw-Hill. pp. 318–319. ISBN 978-0-07-298429-3.

[KaufmannCleveland-1] 1.0 ^1.1 Kaufmann, Robert K.; Cutler J. Cleveland (2008). Environmental Science. McGraw-Hill. pp. 318–319. ISBN 978-0-07-298429-3.

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