Marklund_1988_biomass_Sweden: Calculate dry-weight biomass for individual trees.

In Silviculturalist/forester: Forest Science and Forestry

Calculate dry-weight biomass for individual trees.

Description

Calculate dry-weight biomass for individual trees.

Usage

Marklund_1988_biomass_Sweden(
  species = NULL,
  DBH = NULL,
  diameter_3m.cm = NULL,
  diameter_5m.cm = NULL,
  height.m = NULL,
  ageBH = NULL,
  H100 = NULL,
  SI_Species = NULL,
  DBH_i5.mm = NULL,
  double_bark.mm = NULL,
  soil_texture = NULL,
  soil_moisture = NULL,
  soil_water = NULL,
  latitude = NULL,
  longitude = NULL,
  epsg_in = NULL,
  altitude = NULL,
  crown_base_height.m = NULL,
  crown_radius.m = NULL,
  Dmax_10m = NULL
)

Arguments

species	One of 'Picea abies', 'Pinus sylvestris', 'Betula pendula' or 'Betula pubescens'.
DBH	Diameter at breast height (1.3m), in cm.
diameter_3m.cm	Diameter at 3 m height, in cm.
diameter_5m.cm	Diameter at 5 m height, in cm.
height.m	Height of tree, in m.
ageBH	Age at breast height (1.3m)
H100	Site Index H100 per [forester::Hagglund_1972_northern_Sweden_Height_trajectories_Spruce()],[forester::Hagglund_1973_southern_Sweden_Height_trajectories_Spruce()],[forester::Hagglund_1974_Sweden_height_trajectories_Pine()]
SI_Species	One of 'Picea abies' or 'Pinus sylvestris'.
DBH_i5.mm	Five year diameter increment at breast height, in mm.
double_bark.mm	Double bark thickness, mm.
soil_texture	Code 1-9. [forester::Sweden_soil_types('texture')]
soil_moisture	Code 1-5. [forester::Sweden_soil_types('moisture')]
soil_water	Code 1-3. [forester::Sweden_soil_types('water')]
latitude	Latitude, decimal.
longitude	Longitude, decimal.
epsg_in	EPSG of latitude, longitude arguments.
altitude	Altitude, meters above sea level.
crown_base_height.m	Height from ground to lowest green branch, in meters. See SWE-NFI detailed instruction.
crown_radius.m	Crown radius, meters.
Dmax_10m	DBH of the thickest tree on a plot of radius 10 m.

Details

Unused arguments should be set to NULL.

Value

List of dry weights of tree components (kg).

Source

Marklund, Lars-Gunnar. 1988. Biomassafunktioner för Tall, Gran och Björk i Sverige: Biomass functions for pine, spruce and birch in Sweden. Report 45. 73 pp. Dept. of Forest Survey. Swedish University of Agricultural Sciences. Umeå. ISSN 0348-0496. ISBN 91-576-3524-2.

Examples

Marklund_1988_biomass_Sweden(species='Picea abies',DBH=20)

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