
Toxic qualifier (tx): toxic concentration of organic or inorganic constituents.
Source:R/qualifiers-wrb2022-v0933.R
qual_toxic.RdWRB 2022 Ch 5 / Ch 4 Histosols + Cryosols + Technosols (variable pages): substances at concentrations toxic to plant roots. Practical proxy: very low pH (<= 3.5, sulfuric / hyperacidic) OR very high electrical conductivity (>= 16 dS/m, equivalent to Salic) OR specific contamination fields (heavy metals, hydrocarbons) which the soilKey schema does not yet model. v0.9.33 v0 implementation uses pH <= 3.5 OR EC >= 16 dS/m.
Arguments
- pedon
A
PedonRecord.