Package index • CanadaForestAllometry

Aboveground biomass

Functions for AGB estimation.

agb_component_proportions(): Boudewyn biomass component proportions (Tables 6–7)
agb_lambert_ung(): Calculate tree-level AGB using Lambert & Ung national biomass equations

Volume models

Functions for volume estimation.

vol_nl(): Estimate tree volume for Newfoundland
vol_fortin2007(): Estimate tree merchantable volume using Fortin et al. (2007) model (QC)
vol_galbella94(): Estimate tree volume in Saskatchewan using Kozak (1988) form with Gal & Bella (1994) parameters
vol_honer83(): Honer stem volume using DBH and total height
vol_huang94(): Estimate tree volume in Alberta using Kozak (1988) model form with Huang (1994) parameters
vol_klos2007(): Estimate tree volume in Manitoba using Kozak (1988) form with Klos (2004) parameters
vol_kozak94(): Estimate tree volume using Kozak (1994) taper model (BC, BEC-zone specific)
vol_nigh2016(): Calculate tree total and merchantable volume using Nigh (2016) equations (BC)
vol_sharma2021(): Sharma (2021) stem volume using DBH and total height
vol_total_to_merchantable(): Convert total volume to merchantable volume (Boudewyn et al. 2007; Appendix 6 / Table 14)
vol_ung2013(): Canadian national taper volume model (Ung et al. 2013)
vol_zakrzewski2013(): Estimate tree volume using Zakrzewski (2013) taper model (Ontario)
vol(): Calculate tree volume: choose best available model or run all candidate models
volume_model_registry(): Volume model registry
get_volume_params(): Get volume-model parameters from the CanadaForestAllometry registry

Site index models

Functions for site index modeling.

si_augerward2021(): Auger and Ward (2021) site index model for Quebec plantations
si_buckman2006(): Buckman et al. (2006) site index model for red pine
si_carmean1989(): Carmean et al. (1989) site index model
si_carmean1996(): Carmean (1996) site index models for northwest Ontario
si_carmeanhahn1981(): Carmean and Hahn (1981) site index model
si_cieszewskibella1991(): Cieszewski and Bella (1991) site-index model for major Alberta tree species
si_huang1994(): Huang et al. (1994) site index model for major Alberta tree species
si_kerbowling1991(): Ker and Bowling (1991) site index model
si_lafleche2013(): Lafleche et al. (2013) ecological-site IQS curves for southern Quebec
si_lundgrendolid1970(): Lundgren and Dolid (1970) site index model
si_model_registry(): Site-index model registry
si_nigh2000(): Nigh (2000) site index model for interior western redcedar (BC)
si_nigh2000_gi(): Nigh (2000) growth-intercept site index model for interior western redcedar
si_nighcourtin1998(): Nigh and Courtin (1998) site index model for red alder (BC coast)
si_parresolvissage1998(): Parresol and Vissage (1998) site index model for eastern white pine
si_payandeh1974(): Payandeh (1974) site index model
si_pregent2010(): Prégent et al. (2010) site index model for white spruce plantations
si_pregent2016(): Prégent et al. (2016) site index model for Norway spruce plantations
si_scottvoorhis1986(): Scott and Voorhis (1986) site index model
si_sharma2015(): Sharma et al. (2015) site index model for plantation-grown jack pine and black spruce
si_sharma2021(): Sharma (2021) site index model for jack pine and black spruce in mixed natural stands
si_sharma2022(): Sharma (2022) site index model for black spruce and trembling aspen
si_sharmaparton2018a(): Sharma and Parton (2018) site index model for white spruce plantations
si_sharmaparton2018b(): Sharma and Parton (2018) site index model for red pine plantations
si_sharmaparton2019(): Sharma and Parton (2019) site index model for white pine plantations
si_sharmareid2018(): Sharma and Reid (2018) site index model for natural jack pine and black spruce
si_thrower1994(): Thrower et al. (1994) site index models for BC interior species
ytbh_carmean1989(): Carmean et al. (1989) years-to-breast-height model
ytbh_nigh2000(): Nigh (2000) years-to-breast-height model for interior western redcedar
ytbh_nighcourtin1998(): Nigh and Courtin (1998) years-to-breast-height model for red alder
ytbh_thrower1994(): Thrower et al. (1994) years-to-breast-height models

Volume conversions

Functions convert volume to biomass, total volume to merchantable, or calculate AGB component proportions.

v2b(): Convert volume to aboveground biomass components (Boudewyn et al. 2007)
agb_component_proportions(): Boudewyn biomass component proportions (Tables 6–7)
vol_total_to_merchantable(): Convert total volume to merchantable volume (Boudewyn et al. 2007; Appendix 6 / Table 14)

Growth and yield

Growth and yield models.

Ung2009(): Ung2009 Growth and Yield Model

Data and merchantability

Datasets and merchantability criteria used by model wrappers.

merchcrit: Merchantability criteria
get_merch_criteria(): Get merchantability criteria for a jurisdiction/species (BEC-aware for BC)

Species codes and names

Tools and datasets for translating species identifiers across code systems and names.

translate_species_code(): Universal species translator across codes and names
species_dictionary: Species dictionary for Canadian tree code systems
species_code_lookup: Crosswalk among NFI, CANFI, and jurisdiction-specific species codes