Estimate tree volume in Saskatchewan using Kozak (1988) form with Gal & Bella (1994) parameters

Usage

vol_galbella94(DBH, height, species)

Arguments

DBH: Numeric vector. Diameter at breast height (cm).
height: Numeric vector. Total height (m).
species: Character vector. Species code (e.g., "PICE.MAR").

References

Gal, J., & Bella, I.E. (1994). New stem taper functions for 12 Saskatchewan timber species. Natural Resources Canada, Canadian Forest Service, Northwest Region, Information Report NOR-X-338. Table 5. Kozak, A. (1988). A variable-exponent taper equation.Canadian Journal of Forest Research, 18, 1363–1368.