# Abies fraseri

Pinaceae. 7 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 0.35 g/cm³, estimated from 1 sample in 1 study 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; 11 trees; DBH 9.14–24.89 cm; Read from the original paper.
   - [NSVB Fraser fir, species-level (all ecodivisions): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-abies-fraseri-agb/), Westfall et al. 2024: Abies fraseri, United States; inputs DBH + Height; DBH 9.14–24.89 cm; 11 trees.

2. Chojnacky et al. 2014 (pooled, includes it): Pooled fit on 3 species, this one included; Number of trees not stated; DBH 3–69 cm; Read from the original paper.
   - [North American taxa group: Abies < 0.35 spg (Table 5)](https://treeallometry.org/equations/chojnacky-2014-abies-spg-lt-035/), Chojnacky et al. 2014: Abies < 0.35 spg (Abies balsamea, A. fraseri, A. lasiocarpa), United States; inputs DBH; DBH 3–69 cm.

## Branch biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 11 trees; DBH 9.14–24.89 cm; Read from the original paper.
   - [NSVB Fraser fir, species-level (all ecodivisions): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-abies-fraseri-branch/), Westfall et al. 2024: Abies fraseri, United States; inputs DBH + Height; DBH 9.14–24.89 cm; 11 trees.

## Foliage biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 11 trees; DBH 9.14–24.89 cm; Read from the original paper.
   - [NSVB Fraser fir, species-level (all ecodivisions): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-abies-fraseri-foliage/), Westfall et al. 2024: Abies fraseri, United States; inputs DBH + Height; DBH 9.14–24.89 cm; 11 trees.

## Stem volume

1. Westfall et al. 2024 (this species): Fitted on this species; 30 trees; DBH 3.81–31.75 cm; Read from the original paper.
   - [NSVB Fraser fir, species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-abies-fraseri-volume/), Westfall et al. 2024: Abies fraseri, United States; inputs DBH + Height; DBH 3.81–31.75 cm; 30 trees.

2. Westfall et al. 2024 (same genus): Fitted on the genus Abies; 144–175 trees across all species; DBH 12.45–111.76 cm; Read from the original paper.
   - [NSVB fir spp., species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-abies-spp-volume/), Westfall et al. 2024: Abies, United States; inputs DBH + Height; DBH 12.45–111.76 cm; 175 trees.
   - [NSVB fir spp., Marine Regime Mountains (M240): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-abies-spp-m240-volume/), Westfall et al. 2024: Abies, United States; inputs DBH + Height; DBH 12.45–111.76 cm; 144 trees.