Johansson_1996_height_trajectory_Sweden_Aspen: Height trajectory for European Aspen in Sweden from Johansson...

In Silviculturalist/forester: Forest Science and Forestry

Height trajectory for European Aspen in Sweden from Johansson 1996.

Description

Abstract:

"Growth data were collected from 40 European aspen (Populus tremula L.) stands growing on eight localities in Sweden. The stands ranged in latitude from 56 to 66 degrees N. The mean age of the stands was 32 years (range, 12-63), the mean stand density 1978 stems ha^-1 (range, 300-6000), and the mean diameter at breast height (on bark) 17 cm (range, 8-34). Site index curves were constructed for total age. ...Curves fitted for H40 totla age have another shape than curves presented by other Nordic studies. The curves from the present study have slower growth for young aspens than curves from norwegian and finnish conditions. For 50-70-year-old aspen stands, curves from the present study indicate taller heights than from Nordic studies."

Usage

Johansson_1996_height_trajectory_Sweden_Aspen(
  dominant_height,
  age,
  age2,
  model1 = FALSE,
  output = "Height"
)

Arguments

dominant_height	Dominant height of stand, m.
age	Total age.
age2	Total age at output age.
model1	Default FALSE. If TRUE, uses model 1 from 1996 instead of recommendation from FAKTA SKOG 13?
output	One of "SIH100","Equation" or "Height" (default).

Value

m.

Source

Johansson, T. (1996) Site Index Curves for European Aspen (Populus tremula L.) Growing on Forest Land of Different Soils in Sweden. Silva Fennica 30(4): 437-458. Available: https://doi.org/10.14214/sf.a8503

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