# Larix laricina

Pinaceae. 27 equations apply. Each output lists them most specific first: fitted on this species, on a variety of it, pooled fits that included it, then its genus and family. Within each step, equations the authors advised against go last, then those read from compilations; more trees come first. The order shows how specific the evidence is, not which equation predicts best.

Wood density 0.51 g/cm³, estimated from 2 samples in 2 studies by the [Global Wood Density Database v.2](https://doi.org/10.5281/zenodo.16919509) (Fischer et al. 2026, https://doi.org/10.1111/nph.70860; CC BY 4.0).

## Aboveground biomass

1. Lambert et al. 2005 (this species): Fitted on this species; 575 trees; DBH 1.8–44.5 cm; Read from the original paper.
   - [Canadian national equation, tamarack larch, dbh only (sum of wood, bark, branches, foliage; Table 3)](https://treeallometry.org/equations/lambert-2005-tamarack-larch/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH; DBH 1.8–44.5 cm; 575 trees.
   - [Canadian national equation, tamarack larch, dbh and height (sum of wood, bark, branches, foliage; Table 4)](https://treeallometry.org/equations/lambert-2005-tamarack-larch-dbh-h/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH + Height; DBH 1.8–44.5 cm; 575 trees.

2. Westfall et al. 2024 (this species): Fitted on this species; 85–90 trees; DBH 3.05–33.78 cm; Read from the original paper.
   - [NSVB tamarack, species-level (all ecodivisions): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-laricina-agb/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 3.05–33.78 cm; 90 trees.
   - [NSVB tamarack, Warm Continental Division (210): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-laricina-210-agb/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 3.05–33.78 cm; 85 trees.

3. Chojnacky et al. 2014 (pooled, includes it): Pooled fit on 2 named species and others, this one included; Number of trees not stated; DBH 3–98 cm; Read from the original paper.
   - [North American taxa group: Larix (Table 5)](https://treeallometry.org/equations/chojnacky-2014-larix/), Chojnacky et al. 2014: Larix (Larix laricina, L. occidentalis, L. spp.), United States; inputs DBH; DBH 3–98 cm.

## Stem biomass

1. Lambert et al. 2005 (this species): Fitted on this species; 575 trees; DBH 1.8–44.5 cm; Read from the original paper.
   - [Canadian national equation, tamarack larch, dbh and height (stem wood plus stem bark; Table 4)](https://treeallometry.org/equations/lambert-2005-tamarack-larch-dbh-h-stem/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH + Height; DBH 1.8–44.5 cm; 575 trees.
   - [Canadian national equation, tamarack larch, dbh only (stem wood plus stem bark; Table 3)](https://treeallometry.org/equations/lambert-2005-tamarack-larch-stem/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH; DBH 1.8–44.5 cm; 575 trees.

## Branch biomass

1. Lambert et al. 2005 (this species): Fitted on this species; 575 trees; DBH 1.8–44.5 cm; Read from the original paper.
   - [Canadian national equation, tamarack larch, dbh only (branches; Table 3)](https://treeallometry.org/equations/lambert-2005-tamarack-larch-branches/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH; DBH 1.8–44.5 cm; 575 trees.
   - [Canadian national equation, tamarack larch, dbh and height (branches; Table 4)](https://treeallometry.org/equations/lambert-2005-tamarack-larch-dbh-h-branches/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH + Height; DBH 1.8–44.5 cm; 575 trees.

2. Westfall et al. 2024 (this species): Fitted on this species; 85–90 trees; DBH 3.05–33.78 cm; Read from the original paper.
   - [NSVB tamarack, species-level (all ecodivisions): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-laricina-branch/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 3.05–33.78 cm; 90 trees.
   - [NSVB tamarack, Warm Continental Division (210): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-laricina-210-branch/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 3.05–33.78 cm; 85 trees.

## Foliage biomass

1. Lambert et al. 2005 (this species): Fitted on this species; 575 trees; DBH 1.8–44.5 cm; Read from the original paper.
   - [Canadian national equation, tamarack larch, dbh and height (foliage; Table 4)](https://treeallometry.org/equations/lambert-2005-tamarack-larch-dbh-h-foliage/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH + Height; DBH 1.8–44.5 cm; 575 trees.
   - [Canadian national equation, tamarack larch, dbh only (foliage; Table 3)](https://treeallometry.org/equations/lambert-2005-tamarack-larch-foliage/), Lambert et al. 2005: Larix laricina, Canada; inputs DBH; DBH 1.8–44.5 cm; 575 trees.

2. Westfall et al. 2024 (this species): Fitted on this species; 88–94 trees; DBH 2.54–33.78 cm; Read from the original paper.
   - [NSVB tamarack, species-level (all ecodivisions): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-laricina-foliage/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 2.54–33.78 cm; 94 trees.
   - [NSVB tamarack, Warm Continental Division (210): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-laricina-210-foliage/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 2.54–33.78 cm; 88 trees.

## Stem volume

1. Westfall et al. 2024 (this species): Fitted on this species; 117–2,090 trees; DBH 3.05–103.38 cm; Read from the original paper.
   - [NSVB tamarack, species-level (all ecodivisions): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-volume-large/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 22.86–103.38 cm; 2,090 trees.
   - [NSVB tamarack, species-level (all ecodivisions): total stem wood volume (inside bark), segmented model (Eq. 2), D < 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-volume-small/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 3.05–22.86 cm; 2,090 trees.
   - [NSVB tamarack, Temperate Steppe Regime Mountains (M330): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-m330-volume-large/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 22.86–103.38 cm; 1,025 trees.
   - [NSVB tamarack, Temperate Steppe Regime Mountains (M330): total stem wood volume (inside bark), segmented model (Eq. 2), D < 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-m330-volume-small/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 4.06–22.86 cm; 1,025 trees.
   - [NSVB tamarack, Warm Continental Division (210): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-210-volume-large/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 22.86–43.94 cm; 640 trees.
   - [NSVB tamarack, Warm Continental Division (210): total stem wood volume (inside bark), segmented model (Eq. 2), D < 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-210-volume-small/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 3.05–22.86 cm; 640 trees.
   - [NSVB tamarack, Subarctic Division (130): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-130-volume-large/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 22.86–34.54 cm; 172 trees.
   - [NSVB tamarack, Subarctic Division (130): total stem wood volume (inside bark), segmented model (Eq. 2), D < 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-130-volume-small/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 3.3–22.86 cm; 172 trees.
   - [NSVB tamarack, Warm Continental Regime Mountains (M210): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-m210-volume-large/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 22.86–89.66 cm; 126 trees.
   - [NSVB tamarack, Warm Continental Regime Mountains (M210): total stem wood volume (inside bark), segmented model (Eq. 2), D < 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-m210-volume-small/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 13.21–22.86 cm; 126 trees.
   - [NSVB tamarack, Subarctic Regime Mountains (M130): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-m130-volume-large/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 22.86–36.58 cm; 117 trees.
   - [NSVB tamarack, Subarctic Regime Mountains (M130): total stem wood volume (inside bark), segmented model (Eq. 2), D < 9 in (22.86 cm)](https://treeallometry.org/equations/westfall-2024-larix-laricina-m130-volume-small/), Westfall et al. 2024: Larix laricina, United States; inputs DBH + Height; DBH 11.68–22.86 cm; 117 trees.