Test effective CEC (sum of bases + Al) per kg clay <= threshold

Default threshold is 12 cmol_c/kg clay (WRB 2022 ferralic horizon). If ecec_cmol is missing, computes ECEC from ca_cmol + mg_cmol + k_cmol + na_cmol + al_cmol when those are available.

Usage

test_ecec_per_clay(h, max_cmol_per_kg_clay = 12, candidate_layers = NULL)

Arguments

h

Numeric threshold or option (see Details).

max_cmol_per_kg_clay

Numeric threshold or option (see Details).

candidate_layers

Numeric threshold or option (see Details).