Agestam_1985_volume_Birch_SI: Volume function for Birch from Agestam (1985), including SI.
In Silviculturalist/forester: Forest Science and Forestry

View source: R/Agestam_1985.R

Agestam_1985_volume_Birch_SI

R Documentation

Volume function for Birch from Agestam (1985), including SI.

Description

Volume function for Birch from Agestam (1985), including SI.

Usage

Agestam_1985_volume_Birch_SI(
  basal_area_Birch_m2_ha,
  age_at_breast_height_Birch,
  SI_Birch_m,
  stems_ha_Birch,
  latitude
)

Arguments

`basal_area_Birch_m2_ha`	Basal area over bark Pine, m2/ha.
`age_at_breast_height_Birch`	Age at breast height for Birch stems.
`SI_Birch_m`	Site Index for Birch according to Persson (1959)
`stems_ha_Birch`	Number of Birch stems per hectare.
`latitude`	Latitude, degrees.

Details

Function: B2

Number of plots: 47

Multiple correlation coefficient: 0.997

Standard deviation about the function (sf): 0.078

sf/standard deviation about the mean: 8.2%

Value

Volume Birch m3sk/ha.

Source

Agestam, E. (1985) 'A growth simulator for mixed stands of pine, spruce and birch in Sweden. Diss. Swedish University of Agricultural Sciences. Report no. 15. Dept. of Forest Yield Research. ISSN 0348-7636. ISBN 91-576-2528-x. 150 pp. Garpenberg, Sweden; page. 38.

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