AIDBH_module: Projects individual annual increment in DBH for Nothofagus...

In sgezan/Nothopack: G&Y Forest Simulator for Roble-Rauli-Coigue Stands in Chile

Description

Evaluates input variables to project individual annual increment in DBH for Nothofagus based on tree-level and stand-level parameters. Projections are based in 1 year increments.

Usage

AIDBH_module(
  SP = NA,
  DBH = NA,
  A = NA,
  SS = NA,
  SSCAL = NA,
  BALc = NA,
  ZONE = NA,
  AD = NA,
  SDI = NA,
  model = 1
)

Arguments

SP	Specie (1:Rauli, 2:Roble, 3:Coihue, 4:Other)
DBH	Diameter at breast height (cm) of the tree
A	Breast height age (year) of the tree
SS	Sociological status (1:dominant, 2:codominant, 3:intermediate, 4:suppressed)
SSCAL	Calculated sociological status
BALc	Basal area of larger trees for Nothofagus (m2/ha)
ZONE	Growth zone of the plot (1, 2, 3, 4)
AD	Dominant age (years) of the plot
SDI	Stand Density Index (trees/ha) of the plot
model	Model to use for annual DBH increment (1, 2, 3, 4) (default = 1)

Value

Individual annual increment in DBH (AIDBH, mm) (for projection)

Author(s)

P. Moreno and S.A. Gezan

References

Moreno et al. (2017). Individual-tree diameter growth models for mixed Nothofagus second growth forests in southern Chile. Forests 8(12), 506.

Examples

# Example 1: Individual annual increment in DBH (AIDBH, mm) with model 1
Gest <- AIDBH_module(BALc=2, SDI=800, DBH=15, A=30, SS=1, model=1)
Gest

# Example 2: Individual annual increment in DBH (AIDBH, mm) with model 2
Gest <- AIDBH_module(BALc=2, SDI=800, DBH=15, A=30, SS=1, AD=50, SSCAL=0.5, model=2)
Gest

# Example 3: Individual annual increment in DBH (AIDBH, mm) with model 3
Gest <- AIDBH_module(SP=3, ZONE=2, BALc=2, SDI=800, DBH=15, A=30, SS=1, model=3)
Gest

# Example 4: Individual annual increment in DBH (AIDBH, mm) with model 4
Gest <- AIDBH_module(SP=3, ZONE=2, BALc=2, SDI=800, DBH=15, A=30, SS=1, AD=50, SSCAL=0.5, model=4)
Gest

sgezan/Nothopack documentation built on April 25, 2021, 8:03 a.m.