Estimation of precompression stress by Schjonning and Lamande (2018)
It calculates the precompression stress using the pedo-transfer function from Schjonning and Lamande (2018)
soilStrength2(bulk.density, matric.suction, clay.content)
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} |
The function returns 0 for soil properties values beyond the range for which the function was built.
PC |
the precompression stress |
Renato Paiva de Lima <renato_agro_@hotmail.com> Anderson Rodrigo da Silva <anderson.agro@hotmail.com>
Schjonning, P.; Lamande, M., 2018. Models for prediction of soil precompression stress from readily available soil properties. Geoderma, 320:115-125.
# 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)")
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