Soderberg_1986_BA_self_thinned_stands: Basal area in self-thinned stands

In Silviculturalist/forester: Forest Science and Forestry

Basal area in self-thinned stands

Description

Material from Unthinned permanent plots.

Usage

Soderberg_1986_BA_self_thinned_stands(
  SI_species,
  SIH100,
  total_age_stand,
  BA_quotient_Spruce,
  BA_quotient_Deciduous,
  stems_per_ha
)

Arguments

SI_species	Species for which SIH100 was estimated. One of 'Picea abies' or 'Pinus sylvestris'.
SIH100	Site Index H100, metres.
total_age_stand	Total age of the stand.
BA_quotient_Spruce	Basal area Spruce / Basal area
BA_quotient_Deciduous	Basal area Deciduous trees / Basal area
stems_per_ha	Number of stems per hectare.

Details

Multiple correlation coefficient R = 0.87

Spread about the function sf = 0.15

sf/Spread about the mean = 50.2

Number of observations = 532.

Value

Basal area m2/ha.

Source

From Table 7.1, Söderberg, U. (1986) Funktioner för skogliga produktionsprognoser - Tillväxt och formhöjd för enskilda träd av inhemska trädslag i Sverige. / Functions for forecasting of timber yields - Increment and form height for individual trees of native species in Sweden. Report 14. Section of Forest Mensuration and Management. Swedish University of Agricultural Sciences. Umeå. ISBN 91-576-2634-0. ISSN 0349-2133. pp.251. p. 83.

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