BANmodule: Predicts and/or projects stand basal area for Nothofagus...

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

Description

Evaluates stand-level input variables to predict and/or project basal area for all Nothofagus species. Projections are based in 1 year increments.

Usage

BANmodule(
  BAN0 = NA,
  AD0 = NA,
  SI = NA,
  NHA0 = NA,
  NHA1 = NA,
  PBAN0 = NA,
  PBAN1 = NA,
  projection = FALSE
)

Arguments

BAN0	Basal area (m2/ha) of all Nothofagus at current time (required for projections)
AD0	Dominant age (years) of the stand at time 0
SI	Site Index (in m) at reference dominant age of 20 years of the stand
NHA0	Number of trees (trees/ha) of the stand at time 0
NHA1	Number of trees (trees/ha) of the stand at time 1
PBAN0	Proportion of basal area (m2/ha) of Nothofagus of the stand at time 0
PBAN1	Proportion of basal area (m2/ha) of Nothofagus of the stand at time 1
projection	if TRUE projection from BA0 is executed for a 1 year increment

Value

Basal area for Nothofagus (BAN, m2/ha) for the current age (for prediction) or at AD0+1 (for projection)

Author(s)

S.A. Gezan, S. Palmas and P. Moreno

References

Gezan, S.A. and Ortega, A. (2001). Desarrollo de un Simulador de Rendimiento para Renovales de Roble, Rauli y Coigue. Reporte Interno. Projecto FONDEF D97I1065. Chile

Examples

# Example 1: Predicts basal area
BAest <- BANmodule(AD0=19, SI=14, NHA0=2140, PBAN0 = 0.91, projection=FALSE)
BAest$BAN0

# Example 2: Projects basal area
BAest <- BANmodule(BAN0=36.5, AD0=19,  SI=14, NHA0=2730, NHA1=2650,
                   PBAN0=0.91, PBAN1=0.91, projection=TRUE)
BAest$BAN1

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