SoilR (version 1.0-0)

fW.Century: Effects of moisture on decomposition rates according to the CENTURY model

Description

Calculates the effects of precipitation and potential evapotranspiration on decomposition rates.

Usage

fW.Century(PPT, PET)

Arguments

PPT

A scalar or vector containing values of monthly precipitation.

PET

A scalar or vector containing values of potential evapotranspiration.

Value

• A scalar or a vector containing the effects of precipitation and potential evapotranspiration on decomposition rates (unitless).

References

Adair, E. C., W. J. Parton, S. J. D. Grosso, W. L. Silver, M. E. Harmon, S. A. Hall, I. C. Burke, and S. C. Hart (2008), Simple three-pool model accurately describes patterns of long-term litter decomposition in diverse climates, Global Change Biology, 14(11), 2636-2660. Parton, W. J., J. A. Morgan, R. H. Kelly, and D. S. Ojima (2001), Modeling soil C responses to environmental change in grassland systems, in The potential of U.S. grazing lands to sequester carbon and mitigate the greenhouse effect, edited by R. F. Follett, J. M. Kimble and R. Lal, pp. 371-398, Lewis Publishers, Boca Raton.

Examples

PPT=seq(0,1500,by=10)
PET=rep(1500,length(PPT))
PPT.PET=fW.Century(PPT,PET)
plot(PPT/PET,PPT.PET, ylab="f(PPT, PET) (unitless)", main="Effects of precipitation and potential evapotranspiration on decomposition rates")