soilStrength3: Estimation of precompression stress by Saffih-Hdadi et al....

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

View source: R/soilStrength3.R

Description

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

Usage

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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 <renato_agro_@hotmail.com> Anderson Rodrigo da Silva <anderson.agro@hotmail.com>

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

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# 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)

soilphysics documentation built on Jan. 13, 2021, 7:06 p.m.