Hagglund_1981_si_to_bonitet: Smoothed Productivity estimates in m^3sk (cu.m.) from...

In Silviculturalist/forester: Forest Science and Forestry

Smoothed Productivity estimates in m^3sk (cu.m.) from Hägglund 1981.

Description

Smoothed productivity estimates in m3sk from Hägglund 1981.

Usage

Hagglund_1981_si_to_bonitet(H100, main_species, vegetation, altitude, county)

Arguments

H100	Estimated stand top height at 100 years age. e.g. [forester::Hagglund_1972_northern_Sweden_Height_trajectories_Spruce()],[forester::Hagglund_1973_southern_Sweden_Height_trajectories_Spruce()],[forester::Hagglund_1974_Sweden_height_trajectories_Pine()]
main_species	Main species, one of: 'Picea abies', or 'Pinus sylvestris'
vegetation	Vegetation class [forester::Sweden_vegetation_types()]
altitude	Metres above sea level.
county	Swedish county [forester::county_sweden()]

Details

This function conveniently chooses the appropriate function.

Productive potential as a function of site index

a - Spruce, southern Sweden.

b - Spruce, middle Sweden, herb types, grass types and ground without field layer.

c - Spruce, middle Sweden, bilberry type and worse.

d - Spruce, northern Sweden, herb types, grass types and ground without field layer.

e - Spruce, northern Sweden, bilberry type and worse.

f - Pine, southern and middle Sweden as well as lowlands of northern Sweden.

g - Pine, northern Sweden, more than 200 meters above sea level.

Value

Estimates the mean volume growth in m3sk / ha yr-1 at the time of culmination (or if late culmination, at 150yrs of age)

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