Elfving_2009_BA_stand: Stand Basal Area Development Elfving 2009

In Silviculturalist/forester: Forest Science and Forestry

Stand Basal Area Development Elfving 2009

Description

This relates to the function given in text in the source: the calibrated function BEY2 suggested for application in Heureka.

Usage

Elfving_2009_BA_stand(
  vegetation,
  stand_age,
  Basal_area_Conifer_m2_ha,
  Basal_area_Pine_m2_ha,
  Basal_area_Birch_m2_ha,
  Basal_area_after_thinning,
  Basal_area_before_thinning,
  Basal_area_stand,
  stems_after_thinning,
  peatland,
  soil_moisture,
  SIS100,
  latitude,
  altitude,
  ditched,
  thinned,
  last_thinned
)

Arguments

vegetation	Vegetation type according to follows Swedish National forest inventory FALTSKIKT: Code Vegetation 1 Rich-herb without shrubs 2 Rich-herb with shrubs/bilberry 3 Rich-herb with shrubs/lingonberry 4 Low-herb without shrubs 5 Low-herb with shrubs/bilberry 6 Low-herb with shrubs/lingonberry 7 No field layer 8 Broadleaved grass 9 Thinleaved grass 10 Sedge, high 11 Sedge, low 12 Horsetail, Equisetum ssp. 13 Bilberry 14 Lingonberry 15 Crowberry 16 Poor shrub 17 Lichen, frequent occurrence 18 Lichen, dominating
stand_age	Age at start of period
Basal_area_Conifer_m2_ha	Conifer basal area
Basal_area_Pine_m2_ha	Pine basal area
Basal_area_Birch_m2_ha	Birch basal area
Basal_area_after_thinning	Basal area m2 per ha after thinning.
Basal_area_before_thinning	Basal area m2 per ha before thinning.
Basal_area_stand	Basal area in the surrounding stand, m2/ha.
stems_after_thinning	Stems per hectare after thinning.
peatland	1 if plot is Peatland, 0 for others (default).
soil_moisture	Type 1="Dry/torr",2="Mesic/frisk",3="Mesic-moist/frisk-fuktig",4="Moist/fuktig",5="Wet/Blöt"
SIS100	Site Index as measured from [forester::SIS_estimate()]
latitude	degrees latitude
altitude	metres above sea level
ditched	True or False; if there is a ditch within 25 m of the plot centre.
thinned	1 if the plot has been thinned, otherwise 0.
last_thinned	Number of growth seasons since the stand was last thinned.

Value

Basal Area.

Source

https://www.heurekaslu.se/w/images/9/93/Heureka_prognossystem_%28Elfving_rapportutkast%29.pdf page 50 in text.

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