# Pinus virginiana

Pinaceae. 17 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 0.44 g/cm³, estimated from 191 samples in 6 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; 69–110 trees; DBH 2.54–44.2 cm; Read from the original paper.
   - [NSVB Virginia pine, species-level (all ecodivisions): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-agb/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–44.2 cm; 110 trees.
   - [NSVB Virginia pine, Hot Continental Regime Mountains (M220): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-m220-agb/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–44.2 cm; 69 trees.

2. Brown 1997 (same genus): Fitted on the genus Pinus; 63 trees across all species; DBH 2–52 cm; Read from the original paper.
   - [Tropical pines AGB from DBH (Eq. 3.1.8 / 3.2.8)](https://treeallometry.org/equations/brown-1997-pine/), Brown 1997: Pinus, Global; inputs DBH; DBH 2–52 cm; 63 trees.

3. Vargas-Larreta et al. 2017 (same genus): Fitted on the genus Pinus; Number of trees not stated; Read from the original paper.
   - [Pinus total aboveground biomass](https://treeallometry.org/equations/vargas-larreta-2017-all-pines-agb/), Vargas-Larreta et al. 2017: Pinus, Mexico; inputs DBH + Height.

## Branch biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 69–110 trees; DBH 2.54–44.2 cm; Read from the original paper.
   - [NSVB Virginia pine, species-level (all ecodivisions): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-branch/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–44.2 cm; 110 trees.
   - [NSVB Virginia pine, Hot Continental Regime Mountains (M220): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-m220-branch/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–44.2 cm; 69 trees.

2. Vargas-Larreta et al. 2017 (same genus): Fitted on the genus Pinus; Number of trees not stated; Read from the original paper.
   - [Pinus branch biomass (wood and bark)](https://treeallometry.org/equations/vargas-larreta-2017-all-pines-branch/), Vargas-Larreta et al. 2017: Pinus, Mexico; inputs DBH + Height.

## Foliage biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 68–109 trees; DBH 2.54–44.2 cm; Read from the original paper.
   - [NSVB Virginia pine, species-level (all ecodivisions): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-foliage/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–44.2 cm; 109 trees.
   - [NSVB Virginia pine, Hot Continental Regime Mountains (M220): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-m220-foliage/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–44.2 cm; 68 trees.

2. Vargas-Larreta et al. 2017 (same genus): Fitted on the genus Pinus; Number of trees not stated; Read from the original paper.
   - [Pinus foliage biomass](https://treeallometry.org/equations/vargas-larreta-2017-all-pines-foliage/), Vargas-Larreta et al. 2017: Pinus, Mexico; inputs DBH + Height.

## Stem volume

1. Westfall et al. 2024 (this species): Fitted on this species; 190–2,153 trees; DBH 2.54–65.79 cm; Read from the original paper.
   - [NSVB Virginia pine, species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-volume/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–65.79 cm; 2,153 trees.
   - [NSVB Virginia pine, Subtropical Division (230): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-230-volume/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.79–54.86 cm; 1,345 trees.
   - [NSVB Virginia pine, Hot Continental Regime Mountains (M220): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-m220-volume/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–53.59 cm; 618 trees.
   - [NSVB Virginia pine, Hot Continental Division (220): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-virginiana-220-volume/), Westfall et al. 2024: Pinus virginiana, United States; inputs DBH + Height; DBH 2.54–65.79 cm; 190 trees.

2. Westfall et al. 2024 (same genus): Fitted on the genus Pinus; 154–1,915 trees across all species; DBH 2.54–99.06 cm; Read from the original paper.
   - [NSVB pine spp., species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-spp-volume/), Westfall et al. 2024: Pinus, United States; inputs DBH + Height; DBH 2.54–99.06 cm; 1,915 trees.
   - [NSVB pine spp., Subarctic Division (130): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-spp-130-volume/), Westfall et al. 2024: Pinus, United States; inputs DBH + Height; DBH 2.54–53.59 cm; 1,723 trees.
   - [NSVB pine spp., Warm Continental Regime Mountains (M210): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-pinus-spp-m210-volume/), Westfall et al. 2024: Pinus, United States; inputs DBH + Height; DBH 6.1–99.06 cm; 154 trees.