CajanusDg: Calculate basal area weighted mean stem diameter from...
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CajanusDg

R Documentation

Calculate basal area weighted mean stem diameter from arithmetic mean stem diameter and its' standard deviation e.g. Oppermann 1905, Cajanus 1912.

Description

A relationship commonly attributed to either Oppermann (1905) or Cajanus (1912).

Usage

Oppermann_Cajanus_stand_DGV(diameter, diameter_sd)

Oppermann_Cajanus_mean_diameter(DGV, diameter_sd)

Oppermann_Cajanus_stand_BA(stems, diameter, diameter_sd)

Arguments

`diameter`	Mean arithmetic diameter of the stand in cm.
`diameter_sd`	Standard deviation of the stem distribution of the stand.
`DGV`	The basal area weighted mean diameter (cm) of the stand (Dg).
`stems`	Stems per hectare.

Value

Stand DGV.

The mean diameter of the stand, cm.

Stand total basal area

Source

Meyer, W. 1930. Diameter distribution Series in Evenaged Forest Stands. Yale School of Forestry Bulletin 28. 105 pp. p.24. Available online: https://elischolar.library.yale.edu/cgi/viewcontent.cgi?article=1027&context=yale_fes_bulletin

Reformulation : Eriksson, H. 1976. Yield of Norway spruce in Sweden. Research Notes. Dept. of. Forest Yield Research. Nr. 41. Royal College of Forestry. Stockholm. p. 165.

Silviculturalist/forester documentation built on April 20, 2024, 2:13 p.m.