Soil temperature regime helper (USDA, KST 13ed Ch 3, pp 53-58)

Returns TRUE when pedon$site$soil_temperature_regime matches target. Temperature regimes:

• "gelic": MAST < 0 C (and permafrost present)

• "cryic": MAST 0-8 C, summer < 15 C

• "frigid": MAST < 8 C, summer >= 15 C

• "mesic": MAST 8-15 C

• "thermic": MAST 15-22 C

• "hyperthermic": MAST >= 22 C

• Plus iso- variants (low summer-winter difference)

Usage

soil_temperature_regime_usda(
  pedon,
  target = c("gelic", "cryic", "frigid", "mesic", "thermic", "hyperthermic", "isofrigid",
    "isomesic", "isothermic", "isohyperthermic")
)

Arguments

pedon

A PedonRecord.

target

Character, one of the recognized regimes.

Value

A DiagnosticResult.