View source: R/Petersson_1999_biomass.R
Petersson_1999_biomass | R Documentation |
Forests at high altitudes and close to coast are not represented.
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
)
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. |
List of weights, in g.
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>
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