# Lambert et al. 2005: Canadian national tree aboveground biomass equations

Lambert, M.-C., Ung, C.-H., Raulier, F. (2005). Canadian national tree aboveground biomass equations. Canadian Journal of Forest Research, 35(8), 1996–2018.

- DOI: https://doi.org/10.1139/x05-112
- Access: paywalled
- Copy we read: https://www.esf.edu/quest/documents/Lambertetal.2005.Canadatreebiomass.pdf
- Status: no retraction or correction notice recorded (Crossref is asked weekly); last checked 2026-11-01
- Page: https://treeallometry.org/sources/lambert-2005/

## Equations from this source (5)

### Canadian national equation, black spruce, dbh only (sum of wood, bark, branches, foliage; Table 3)

Aboveground biomass for Picea mariana, Canada. Inputs: DBH. DBH 1.6–37.2 cm. 1,534 trees.

As printed (Eq. 2):

> y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2

Page: https://treeallometry.org/equations/lambert-2005-black-spruce/

### Canadian national equation, jack pine, dbh only (sum of wood, bark, branches, foliage; Table 3)

Aboveground biomass for Pinus banksiana, Canada. Inputs: DBH. DBH 1.7–41 cm. 364 trees.

As printed (Eq. 2):

> y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2

Page: https://treeallometry.org/equations/lambert-2005-jack-pine/

### Canadian national equation, red oak, dbh only (sum of wood, bark, branches, foliage; Table 3)

Aboveground biomass for Quercus rubra, Canada. Inputs: DBH. DBH 1.1–55.3 cm. 117 trees.

As printed (Eq. 2):

> y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2

Page: https://treeallometry.org/equations/lambert-2005-red-oak/

### Canadian national equation, sugar maple, dbh only (sum of wood, bark, branches, foliage; Table 3)

Aboveground biomass for Acer saccharum, Canada. Inputs: DBH. DBH 2–57.8 cm. 235 trees.

As printed (Eq. 2):

> y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2

Page: https://treeallometry.org/equations/lambert-2005-sugar-maple/

### Canadian national equation, trembling aspen, dbh only (sum of wood, bark, branches, foliage; Table 3)

Aboveground biomass for Populus tremuloides, Canada. Inputs: DBH. DBH 0.7–47.2 cm. 773 trees.

As printed (Eq. 2):

> y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2

Page: https://treeallometry.org/equations/lambert-2005-trembling-aspen/