cfp_fgmod: Model frame for fg_flux

In valentingar/ConFluxPro: A toolkit for soil gas analysis

Model frame for fg_flux

Description

An S3 class for fg_flux() models. The class inherits from cfp_dat and adds any model specific parameters.

Usage

cfp_fgmod(
  x,
  gases = unique_gases(x),
  modes = "LL",
  param = c("c_air", "DS"),
  funs = c("arith", "harm")
)

Arguments

x	A cfp_dat object with all the necessary input datasets.
gases	(character) A character vector defining the gases for which fluxes shall be calculated.
modes	(character) A character vector specifying mode(s) for dcdz calculation. Can be "LL","LS","EF". LL local linear approach: within each layer a linear model is evaluated of concentration over the depth. LS linear spline approach: A linear spline is fitted over the complete profile with nodes at the layer intersections. EF exponential fit approach: An exponential function of form y=a+b*x^c is fit of concentration against depth. Using the first derivative of that function the concentration gradient is evaluated for each layer. DA exponential fit approach: An exponential function of form y=a+b*(1-exp(-a*x)) is fit of concentration against depth. Using the first derivative of that function the concentration gradient is evaluated for each layer. From Davidson (2006).
param	(character) A vector containing the the parameters of soilphys, for which means should be calculated, must contain "c_air" and "DS", more parameters may help interpretation.
funs	(character) A vector defining the type of mean to be used for each parameter in param. One of "arith" or "harm".

Value

A cfp_fgmod object. This inherits from cfp_dat() and adds model specific parameters.

References

DAVIDSON, E. A., SAVAGE, K. E., TRUMBORE, S. E., & BORKEN, W. (2006). Vertical partitioning of CO2 production within a temperate forest soil. In Global Change Biology (Vol. 12, Issue 6, pp. 944–956). Wiley. https://doi.org/10.1111/j.1365-2486.2005.01142.x

See Also

Other model frames: cfp_altres(), cfp_fgres(), cfp_pfmod(), cfp_pfres()

Examples

cfp_fgmod(ConFluxPro::base_dat)

valentingar/ConFluxPro documentation built on Dec. 1, 2024, 9:35 p.m.