hydpar_puh2: Mualem - van Genuchten Parameters from regression functions...

Description Usage Arguments Value References Examples

View source: R/ptf_puh2.R

Description

Derives the Mualem - van Genuchten parameters ThetaR, ThetaS, Alpha, n, Tort and Ksat from clay, silt, sand contents, bulk density, and organic carbon content values

Usage

1
hydpar_puh2(clay, silt, sand, bd, oc.pct = 0.5)

Arguments

clay

clay mass percent

silt

silt mass percent

sand

sand mass percent

bd

bulk density in g cm-3

oc.pct

organic carbon content in mass percent

Value

A data.frame with the number of rows equal to length(tex.KA5) The data.frame contains the following variables:

ths

Saturation water content fraction

thr

Residual water content fraction

npar

N parameter of van Genuchten water retention function

mpar

M parameter of van Genuchten water retention function

alpha

Alpha parameter of van Genuchten water retention function, m-1

ksat

Saturated hyraulic conductivity parameter of Mualem hydraulic conductivity function, mm d-1

tort

Tortuosity parameter of Mualem hydraulic conductivity function

References

Puhlmann H, von Wilpert K (2011) Testing and development of pedotransfer functions for water retention and hydraulic conductivity of forest soils. Wald?kologie, Landschaftsforschung und Naturschutz 12, pp. 61-71

Examples

1
hydpar_puh2(20,20,60,1.5)

pschmidtwalter/brook90r documentation built on Sept. 26, 2018, 5:17 p.m.