sitreeE (version 0.0-10)

AM2016ClimateSensitiveSINorway: Climate-sensitive site index models for Norway

Description

Implementation of models for climate-sensitive site index models for Norway as described in Antón-Fernández et al. (2016).

Usage

AM2016ClimateSensitiveSINorway(soilquality, t.early.summer, waterbal, SI.spp)

Value

Returns a vector with the estimated SI.

Arguments

soilquality

A factor with levels 1 to 5 indicating the soilquality category. 1 being the poorest soils and 5 the best soils

t.early.summer

A vector with sum temperatures (in C) in spring and early summer (april, june and july)

waterbal

A vector with the montly moisture surplus in June (difference between the 30-year mean precipitation in June and mean potential evapotranspiration in June.).

SI.spp

SI species, that is, the species for which SI should be calculated. 1 = spruce, 2 = pine, 3 = birch.

Author

Clara Anton-Fernandez

References

Anton-Fernandez, Clara, Blas Mola-Yudego, Lise Dalsgaard, and Rasmus Astrup. 2016. “Climate-Sensitive Site Index Models for Norway.” Canadian Journal of Forest Research 46 (6). doi: 10.1139/cjfr-2015-0155

Examples

AM2016ClimateSensitiveSINorway (soilquality = as.factor(c(1,2,3,4)),
                                t.early.summer = c(10,20,30,10),
                                waterbal = c(-40, 20,10,10),
                                SI.spp = c(1,2,2,3))