soilStrength3: Estimation of precompression stress by Saffih-Hdadi et al....
In soilphysics: Soil Physical Analysis

Description Usage Arguments Details Value Author(s) References See Also Examples

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

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

`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

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>

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.

stressTraffic

  
# 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)