alpha: Calculate 'alpha' parameter

In aj-sykes92/soilc.ipcc: The IPCC (2019) Tier 2 Steady-State Method for Soil Carbon

Description

Calculates the alpha model parameter, which is derived from carbon inputs, nitrogen and lignin fractions, sand fraction and tillage type.

Usage

alpha(
  c_input,
  lignin_frac,
  n_frac,
  sand_frac,
  till_type,
  params = soilc_params
)

Arguments

c_input	Numeric vector indicating combined carbon inputs for the model, in tonnes C ha^-1.
lignin_frac	Numeric vector indicating lignin fraction of the carbon inputs, fractional.
n_frac	Numeric vector indicating nitrogen fraction of the carbon inputs, fractional.
sand_frac	A numeric scalar or vector indicating the sand proportion in the soil mineral makeup, fractional.
till_type	A character vector indicating tillage type. One of "unknown", "full", "reduced", or "zero".
params	A named list containing model parameters. Defaults to the package default parameter set soilc_params.

aj-sykes92/soilc.ipcc documentation built on March 19, 2021, 11:52 a.m.