# Larix occidentalis

Pinaceae. 6 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 0.52 g/cm³, estimated from 3 samples in 3 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. Westfall et al. 2024 (this species): Fitted on this species; 40 trees; DBH 8.64–60.71 cm; Read from the original paper.
   - [NSVB western larch, species-level (all ecodivisions): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-occidentalis-agb/), Westfall et al. 2024: Larix occidentalis, United States; inputs DBH + Height; DBH 8.64–60.71 cm; 40 trees.

2. 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.

## Branch biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 40 trees; DBH 8.64–60.71 cm; Read from the original paper.
   - [NSVB western larch, species-level (all ecodivisions): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-occidentalis-branch/), Westfall et al. 2024: Larix occidentalis, United States; inputs DBH + Height; DBH 8.64–60.71 cm; 40 trees.

## Foliage biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 59–66 trees; DBH 4.06–66.55 cm; Read from the original paper.
   - [NSVB western larch, species-level (all ecodivisions): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-occidentalis-foliage/), Westfall et al. 2024: Larix occidentalis, United States; inputs DBH + Height; DBH 4.06–66.55 cm; 66 trees.
   - [NSVB western larch, Temperate Steppe Regime Mountains (M330): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-occidentalis-m330-foliage/), Westfall et al. 2024: Larix occidentalis, United States; inputs DBH + Height; DBH 4.06–60.71 cm; 59 trees.

## Stem volume

1. Westfall et al. 2024 (this species): Fitted on this species; 64 trees; DBH 9.14–60.71 cm; Read from the original paper.
   - [NSVB western larch, species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-larix-occidentalis-volume/), Westfall et al. 2024: Larix occidentalis, United States; inputs DBH + Height; DBH 9.14–60.71 cm; 64 trees.