<ptfkit/pidgeon1972.h>¶

#include <ptfkit/pidgeon1972.h>

Pidgeon (1972), available-water regressions for ferrallitic soils in Uganda.

Source¶

Pidgeon, J. D. (1972). The measurement and prediction of available water capacity of ferrallitic soils in Uganda. Journal of Soil Science, 23(4), 431-441.

Scope¶

Territory: Non-alluvial ferrallitic soils in Uganda, predominantly kaolinitic and possibly illitic

Dataset: Ugandan profile samples; Entebbe alluvial and Nabbongo montmorillonitic soils were excluded from the adopted regressions.

PTF catalog page

Functions¶

calc_ptf_pidgeon1972_fc¶

Estimate gravimetric field capacity from silt, clay, and organic matter.

static inline double calc_ptf_pidgeon1972_fc(double silt, double clay, double organic_matter);

Parameters¶

Returns¶

Gravimetric field capacity. (% w/w)

calc_ptf_pidgeon1972_fc_sand¶

Estimate gravimetric field capacity from sand.

static inline double calc_ptf_pidgeon1972_fc_sand(double sand);

Parameters¶

Returns¶

Gravimetric field capacity. (% w/w)

calc_ptf_pidgeon1972_fc_sand_organic_matter¶

Estimate gravimetric field capacity from sand and organic matter.

static inline double calc_ptf_pidgeon1972_fc_sand_organic_matter(double sand, double organic_matter);

Parameters¶

Returns¶

Gravimetric field capacity. (% w/w)

calc_ptf_pidgeon1972_fc_vol_sand_organic_matter¶

Estimate volumetric field capacity from sand and organic matter.

static inline double calc_ptf_pidgeon1972_fc_vol_sand_organic_matter(double sand, double organic_matter);

Parameters¶

Returns¶

Volumetric field capacity. (% v/v)

calc_ptf_pidgeon1972_pwp¶

Estimate permanent wilting point from silt, clay, and organic matter.

static inline double calc_ptf_pidgeon1972_pwp(double silt, double clay, double organic_matter);

Parameters¶

Returns¶

Permanent wilting point. (% w/w)

calc_ptf_pidgeon1972_pwp_sand¶

Estimate permanent wilting point from sand.

static inline double calc_ptf_pidgeon1972_pwp_sand(double sand);

Parameters¶

Returns¶

Permanent wilting point. (% w/w)

calc_ptf_pidgeon1972_pwp_sand_organic_matter¶

Estimate permanent wilting point from sand and organic matter.

static inline double calc_ptf_pidgeon1972_pwp_sand_organic_matter(double sand, double organic_matter);

Parameters¶

Returns¶

Permanent wilting point. (% w/w)

calc_ptf_pidgeon1972_awc¶

Estimate available water capacity from clay and organic matter.

static inline double calc_ptf_pidgeon1972_awc(double clay, double organic_matter);

Parameters¶

Returns¶

Available water capacity. (mm/m)

calc_ptf_pidgeon1972_awc_sand_organic_matter¶

Estimate available water capacity from sand and organic matter.

static inline double calc_ptf_pidgeon1972_awc_sand_organic_matter(double sand, double organic_matter);

Parameters¶

Returns¶

Available water capacity. (mm/m)

calc_ptf_pidgeon1972_awc_coarse_sand¶

Estimate available water capacity from coarse sand.

static inline double calc_ptf_pidgeon1972_awc_coarse_sand(double coarse_sand);

Parameters¶

Returns¶

Available water capacity. (mm/m)

calc_ptf_pidgeon1972_awc_fine_sand¶

Estimate available water capacity from fine sand.

static inline double calc_ptf_pidgeon1972_awc_fine_sand(double fine_sand);

Parameters¶

Returns¶

Available water capacity. (mm/m)

calc_ptf_pidgeon1972_awc_very_fine_sand¶

Estimate available water capacity from very fine sand.

static inline double calc_ptf_pidgeon1972_awc_very_fine_sand(double very_fine_sand);

Parameters¶

Returns¶

Available water capacity. (mm/m)

calc_ptf_pidgeon1972_eawc¶

Estimate extended available water capacity from silt, clay, and organic matter.

static inline double calc_ptf_pidgeon1972_eawc(double silt, double clay, double organic_matter);

Parameters¶

Returns¶

Extended available water capacity. (mm/m)

calc_ptf_pidgeon1972_eawc_sand¶

Estimate extended available water capacity from sand.

static inline double calc_ptf_pidgeon1972_eawc_sand(double sand);

Parameters¶

Returns¶

Extended available water capacity. (mm/m)

calc_ptf_pidgeon1972_eawc_sand_organic_matter¶

Estimate extended available water capacity from sand and organic matter.

static inline double calc_ptf_pidgeon1972_eawc_sand_organic_matter(double sand, double organic_matter);

Parameters¶

Returns¶

Extended available water capacity. (mm/m)

calc_ptf_pidgeon1972_eawc_coarse_sand_organic_matter¶

Estimate extended available water capacity from coarse sand and organic matter.

static inline double calc_ptf_pidgeon1972_eawc_coarse_sand_organic_matter(double coarse_sand, double organic_matter);

Parameters¶

Returns¶

Extended available water capacity. (mm/m)

calc_ptf_pidgeon1972_eawc_fine_sand_organic_matter¶

Estimate extended available water capacity from fine sand and organic matter.

static inline double calc_ptf_pidgeon1972_eawc_fine_sand_organic_matter(double fine_sand, double organic_matter);

Parameters¶

Returns¶

Extended available water capacity. (mm/m)