soilStrength2 {soilphysics}

Estimation of precompression stress by Schjonning and Lamande (2018)

Description

It calculates the precompression stress using the pedo-transfer function from Schjonning and Lamande (2018)

Usage

 
soilStrength2(bulk.density,  matric.suction, clay.content)

Arguments

clay.content

a numeric vector containing the values of clay content, \%

matric.suction

a numeric vector containing the values of matric suction, hPa

bulk.density

a numeric vector containing the values of soil bulk density, Mg m^{-3}

Details

The function returns 0 for soil properties values beyond the range for which the function was built.

Value

PC

the precompression stress

Author(s)

Renato Paiva de Lima <[e-mail]> Anderson Rodrigo da Silva <[e-mail]>

References

Schjonning, P.; Lamande, M., 2018. Models for prediction of soil precompression stress from readily available soil properties. Geoderma, 320:115-125.

See Also

stressTraffic

Examples

# EXAMPLE 1

soilStrength2(bulk.density=1.46, matric.suction=100, clay.content=0.3)


# EXAMPLE 2

matric.suction <- seq(from=60,to=1000,len=50) # range of matric suction from 60 to 1200 hPa
out <- soilStrength2(bulk.density=1.46, matric.suction=matric.suction, clay.content=0.3)
plot(x=matric.suction,y=out, 
     ylab="Precompression stress (kPa)", xlab="Matric suction (hPa)")

# End (not run)