Tests whether any horizon meets the calcic horizon criteria. The calcic horizon is a horizon of secondary carbonate accumulation, diagnostic for Calcisols and qualifying many other RSGs.
Arguments
- pedon
A
PedonRecord.- min_thickness
Minimum thickness in cm (default 15).
- min_caco3_pct
Minimum CaCO3 percent in fine earth (default 15).
Details
Sub-tests called:
test_caco3_concentration– CaCO3 >= 15%.test_minimum_thickness– thickness >= 15 cm.
v0.2 limitations: the WRB criterion of "5% absolute or relative more CaCO3 than the underlying horizon" is not enforced; this captures true calcic horizons but may also mark uniformly carbonate-rich substrates that are not pedologically calcic. Cementation (petrocalcic) is not yet detected. Both refinements are scheduled for v0.3.