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Returns the 3,153-row data.frame from inst/rules/usda/canonical/2022_KST_codes.json, vendored from NCSS-tech/SoilKnowledgeBase. Each row is a (code, name) pair.

Usage

kst13_codes()

Value

A data.frame with columns code, name.

Details

Code structure:

  • Single letter ("A"-"L"): Soil Order (Gelisols, Histosols, ..., Entisols)

  • Two letters ("AB", "AC", ...): Suborder

  • Three letters: Great Group

  • Four letters: Subgroup