Persson_1992_natural_mortality_Pine: Natural mortality in stands of Scots Pine from Persson, O....

In Silviculturalist/forester: Forest Science and Forestry

Natural mortality in stands of Scots Pine from Persson, O. (1992)

Description

Natural mortality in stands of Scots Pine from Persson, O. (1992)

Usage

Persson_1992_natural_mortality_Pine(
  basal_area_above_bark,
  dominant_height,
  H100,
  stems,
  latitude
)

Arguments

basal_area_above_bark	Basal area over bark, m2/ha
dominant_height	Dominant height m
H100	Site Index, m. e.g. [forester::Hagglund_1974_Sweden_height_trajectories_Pine()]
stems	Number of stems per ha.
latitude	Latitude, degrees.

Details

If basal_area_above_bark denser than average basal area cf. [forester::Persson_1992_average_basal_area_Pine()]

number of growth periods: 301

Coefficient of determination: 0.371

Standard deviation about the function (sf): 1.012

(sf)/standard deviation about the mean: 79.7

If basal_area_above_bark thinner than average basal area cf. [forester::Persson_1992_average_basal_area_Pine()]

number of growth periods: 1968

Coefficient of determination: 0.173

Standard deviation about the function (sf): 0.981

(sf)/standard deviation about the mean: 91.0

Value

Annual mortality, basal area on bark + 0.01 m2/ha/yr.

Source

Persson, O. (1992) En produktionsmodell för tallskog i Sverige: A growth simulator for Scots Pine (Pinus sylvestris, L.) in Sweden. Report nr. 31. Dept. of Forest Yield Research. Swedish University of Agricultural Sciences. ISSN 0348-7636. Garpenberg. p. 60. pp. 206.

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