Given the complexity of modelling acidification, including calculation of pHBC at changing values of pH, and the amount of experimental data required to do it mechanistically, an alternative approach may be useful--to measure the soil's pH buffer curve using appropriate conditions and then to use the empirical curve
Phillips' empirical curve
became famous almost instantaneously, despite it being a "rush job" (Phillips, cited by Blyth, 1975, p.
As previously mentioned, the empirical curve
The comparison demonstrates this calibration is closer to the Topp curve than other published empirical curves
3) and, in the absence of first-principles calculation methods, has to be represented by empirical curves