US Soil Taxonomy (UST)

Keys to Soil Taxonomy

Soil Survey Staff. 2014. Keys to Soil Taxonomy, 12th ed. USDA-Natural Resources Conservation Service, Washington, DC.

Keys to Soil Taxonomy, 12th ed. cover

Horizon Definitions are provided in Chapter 3, and the Identification Key starts in Chapter 4 and then branches to the appropriate chapter for further distinction within each soil order.

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