Horizonte B latossolico (SiBCS Cap 2, p 57-59; v0.7 strict)

Adicionalmente a ferralic (WRB), o B latossolico SiBCS exige:

Espessura minima de 50 cm;
Textura francoarenosa ou mais fina;
Estrutura granular muito pequena/pequena ou em blocos subangulares fraco/moderado;
< 5% volume mostrando estrutura da rocha original;
Ki \<= 2.2 (geralmente \<= 2.0);
Cerosidade no maximo pouca e fraca.

v0.7 enforce thickness, texture, e ausencia de estrutura primaria herdada via designation e clay; Ki/Kr quantitativos sao v0.8 (precisa de SiO2/Al2O3 lab-data nao no schema).

Usage

B_latossolico(
  pedon,
  min_thickness = 50,
  max_cec_per_clay = NULL,
  engine = NULL,
  ...
)

Arguments

pedon: A PedonRecord.
min_thickness: Numeric threshold or option (see Details).
max_cec_per_clay: Numeric threshold or option (see Details). Defaults to NULL (engine-aware): 17 in soilkey engine (the SiBCS-loose threshold, slightly more permissive than strict WRB ferralic 16) or 20 in aqp engine (v0.9.68 regional tolerance for Embrapa lab methodology offset).
engine: One of "soilkey" (default) or "aqp"; NULL reads getOption("soilKey.diagnostic_engine"). Forwarded to ferralic.
...: Reserved for future arguments.