heightEstimateForBTOP_D: Estimate tree height for a broken top tree when DBH, inside...

In bcgov/FAIBBase: Basic functions for forest mensuration and ecology

Estimate tree height for a broken top tree when DBH, inside bark diamater at broken top height, height at broken are available

Description

This is the second function to estimate a tree's height for a broken top tree. A tree's height is esimated using height of the broken top (heightBTOP), inside bark diameter at broken height (DIBBTOP) and DBH. Specifically, this function guesses the tree height, computes inside bark diameter at broken height (heightBTOP) using a taper equation, compares it to an observed inside bark diameter and chooses the tree height that has closest value of inside bark diameter at broken. For the broken top trees that have field projected height, total tree height also can be estimated using heightEstimateForBTOP_H.

Usage

heightEstimateForBTOP_D(
  heightBTOP,
  DIBBTOP,
  DBH,
  taperEquationForm = "KBEC",
  FIZorBEC,
  species,
  volMultiplier = 1,
  SASOriginal = FALSE
)

Arguments

heightBTOP	numeric, Height of the broken top.
DIBBTOP	numeric, Diameter inside bark at the height of the broken top.
DBH	numeric, DBH of the tree, Must be given when BTOP is D.
taperEquationForm	character, Specifies which taper equaiton will be used to estimate tree height, currently supports KBEC, KBECQCI, KFIZ. If missing, the function uses KBEC as default.
FIZorBEC	character, Specifies which FIZ or BEC (depends on taperEquationForm) zones the tree located.
species	character, Tree species.
volMultiplier	numeric, Volume adjustment. If missing, 1 will be used.
SASOriginal	logical, Specifies whether the original sas algrithm will be used for guess tree height If missing, FALSE will be used.

Value

Total tree height

Author(s)

Yong Luo

See Also

heightEstimateForBTOP_H

bcgov/FAIBBase documentation built on June 19, 2024, 11:57 p.m.