Petersson_1999_biomass: Calculate biomass of tree according to Petersson (1999)

View source: R/Petersson_1999_biomass.R

Petersson_1999_biomassR Documentation

Calculate biomass of tree according to Petersson (1999)

Description

Forests at high altitudes and close to coast are not represented.

Usage

Petersson_1999_biomass(
  species,
  diameter.cm,
  height.m,
  age_at_breast_height,
  SI,
  dominant_species,
  five_years_radial_increment.mm,
  peat,
  latitude,
  longitude,
  epsg_in = 4326,
  altitude
)

Arguments

species

One of "Picea abies","Pinus sylvestris","Betula pendula" or "Betula pubescens".

diameter.cm

Diameter at breast height, in cm.

height.m

Height of tree, in metres.

age_at_breast_height

Age at breast height.

SI

Site index of dominating tree species according to Hägglund & Lundmark (1977).

dominant_species

For which the SI was calculated. "Picea abies" or "Pinus sylvestris".

five_years_radial_increment.mm

five years radial increment, in mm.

peat

TRUE if soil type is peat, otherwise FALSE. Soil type is peat if the tree plot is more than 30 cm deep peat.

latitude

latitude

longitude

longitude

epsg_in

EPSG of Latitude and Longitude, default=4326.

altitude

Metres above sea level.

Value

List of weights, in g.

Source

Petersson, H. (1999). Biomassafunktioner för trädfaktorer av tall, gran och björk i Sverige. Eng.: Biomass functions for tree factors of Pine, Norway Spruce and Birch in Sweden. Report #59. Skogliga konsekvensanalyser 1999. Dept. of Forest Resources and Geomatics. Swedish University of Agricultural Sciences. ISSN 1401-1204, ISRN SLU-SRG-AR-59-SE. Umeå, Sweden.

<https://pub.epsilon.slu.se/8782/1/Petersson_H_120502.pdf>


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