soilStrength3 {soilphysics}

Estimation of precompression stress by Saffih-Hdadi et al. (2009)

Description

It calculates the precompression stress using the pedo-transfer function from Saffih-Hdadi et al. (2009)

Usage

 
soilStrength3(bulk.density, water.content, 
              texture=c("VeryFine","Fine","MediumFine","Medium","Coarse"))

Arguments

bulk.density

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

water.content

a numeric vector containing the values of gravimetric water content, \%

texture

the soil texture group. See exemples

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

Saffih-Hdadi, K.; Defossez, P.; Richard, G.; Cui, Y. J.; Tang, A. M.; Chaplain, V, 2009. A method for predicting soil susceptibility to the compaction of surface layers as a function of water content and bulk density Geoderma, 115: 96-103.

See Also

stressTraffic

Examples

  
# EXAMPLE 1

soilStrength3(bulk.density=1.1, water.content=40, texture="VeryFine")
soilStrength3(bulk.density=1.2, water.content=20, texture="Fine")
soilStrength3(bulk.density=1.3, water.content=15, texture="MediumFine")
soilStrength3(bulk.density=1.4, water.content=15, texture="Medium")
soilStrength3(bulk.density=1.5, water.content=10, texture="Coarse")

# End (not run)