# Carya alba

Juglandaceae. 25 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 0.7 g/cm³, estimated from 5 samples in 4 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 (same genus): Fitted on the genus Carya; 76 trees across all species; DBH 2.8–46.6 cm; Read from the original paper.
   - [Canadian national equation, hickory, dbh only (sum of wood, bark, branches, foliage; Table 3)](https://treeallometry.org/equations/lambert-2005-hickory/), Lambert et al. 2005: Carya, Canada; inputs DBH; DBH 2.8–46.6 cm; 76 trees.
   - [Canadian national equation, hickory, dbh and height (sum of wood, bark, branches, foliage; Table 4)](https://treeallometry.org/equations/lambert-2005-hickory-dbh-h/), Lambert et al. 2005: Carya, Canada; inputs DBH + Height; DBH 2.8–46.6 cm; 76 trees.

2. Chojnacky et al. 2014 (same genus): Fitted on 2 other Carya species, not this one; Number of trees not stated; DBH 3–70 cm; Read from the original paper.
   - [North American taxa group: Fabaceae/Juglandaceae, Carya (Table 5)](https://treeallometry.org/equations/chojnacky-2014-carya/), Chojnacky et al. 2014: Carya (Carya illinoinensis, C. ovata, Carya spp.), United States; inputs DBH; DBH 3–70 cm.

3. Westfall et al. 2024 (same genus): Fitted on the genus Carya; 71–215 trees across all species; DBH 2.54–58.67 cm; Read from the original paper.
   - [NSVB hickory spp., species-level (all ecodivisions): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-agb/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–58.67 cm; 215 trees.
   - [NSVB hickory spp., Subtropical Division (230): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-230-agb/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–46.99 cm; 82 trees.
   - [NSVB hickory spp., Hot Continental Regime Mountains (M220): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-m220-agb/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.79–58.67 cm; 71 trees.

## Stem biomass

1. Lambert et al. 2005 (same genus): Fitted on the genus Carya; 76 trees across all species; DBH 2.8–46.6 cm; Read from the original paper.
   - [Canadian national equation, hickory, dbh and height (stem wood plus stem bark; Table 4)](https://treeallometry.org/equations/lambert-2005-hickory-dbh-h-stem/), Lambert et al. 2005: Carya, Canada; inputs DBH + Height; DBH 2.8–46.6 cm; 76 trees.
   - [Canadian national equation, hickory, dbh only (stem wood plus stem bark; Table 3)](https://treeallometry.org/equations/lambert-2005-hickory-stem/), Lambert et al. 2005: Carya, Canada; inputs DBH; DBH 2.8–46.6 cm; 76 trees.

## Branch biomass

1. Westfall et al. 2024 (same genus): Fitted on the genus Carya; 73–257 trees across all species; DBH 2.54–58.67 cm; Read from the original paper.
   - [NSVB hickory spp., species-level (all ecodivisions): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-branch/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–58.67 cm; 257 trees.
   - [NSVB hickory spp., Subtropical Division (230): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-230-branch/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–46.99 cm; 83 trees.
   - [NSVB hickory spp., Warm Continental Division (210): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-210-branch/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.79–46.48 cm; 78 trees.
   - [NSVB hickory spp., Hot Continental Regime Mountains (M220): branch biomass (wood and bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-m220-branch/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.79–58.67 cm; 73 trees.

2. Lambert et al. 2005 (same genus): Fitted on the genus Carya; 76 trees across all species; DBH 2.8–46.6 cm; Read from the original paper.
   - [Canadian national equation, hickory, dbh only (branches; Table 3)](https://treeallometry.org/equations/lambert-2005-hickory-branches/), Lambert et al. 2005: Carya, Canada; inputs DBH; DBH 2.8–46.6 cm; 76 trees.
   - [Canadian national equation, hickory, dbh and height (branches; Table 4)](https://treeallometry.org/equations/lambert-2005-hickory-dbh-h-branches/), Lambert et al. 2005: Carya, Canada; inputs DBH; DBH 2.8–46.6 cm; 76 trees.

## Foliage biomass

1. Westfall et al. 2024 (same genus): Fitted on the genus Carya; 78–247 trees across all species; DBH 2.54–58.67 cm; Read from the original paper.
   - [NSVB hickory spp., species-level (all ecodivisions): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-foliage/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–58.67 cm; 247 trees.
   - [NSVB hickory spp., Subtropical Division (230): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-230-foliage/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–46.99 cm; 104 trees.
   - [NSVB hickory spp., Warm Continental Division (210): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-210-foliage/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.79–46.48 cm; 78 trees.

2. Lambert et al. 2005 (same genus): Fitted on the genus Carya; 76 trees across all species; DBH 2.8–46.6 cm; Read from the original paper.
   - [Canadian national equation, hickory, dbh and height (foliage; Table 4)](https://treeallometry.org/equations/lambert-2005-hickory-dbh-h-foliage/), Lambert et al. 2005: Carya, Canada; inputs DBH; DBH 2.8–46.6 cm; 76 trees.
   - [Canadian national equation, hickory, dbh only (foliage; Table 3)](https://treeallometry.org/equations/lambert-2005-hickory-foliage/), Lambert et al. 2005: Carya, Canada; inputs DBH; DBH 2.8–46.6 cm; 76 trees.

## Stem volume

1. Westfall et al. 2024 (this species): Fitted on this species; 51 trees; DBH 2.54–61.72 cm; Read from the original paper.
   - [NSVB mockernut hickory, species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-alba-volume/), Westfall et al. 2024: Carya alba, United States; inputs DBH + Height; DBH 2.54–61.72 cm; 51 trees.

2. Westfall et al. 2024 (same genus): Fitted on the genus Carya; 92–2,079 trees across all species; DBH 2.54–85.85 cm; Read from the original paper.
   - [NSVB hickory spp., species-level (all ecodivisions): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-volume/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–85.85 cm; 2,079 trees.
   - [NSVB hickory spp., Subtropical Division (230): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-230-volume/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–84.58 cm; 1,212 trees.
   - [NSVB hickory spp., Hot Continental Regime Mountains (M220): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-m220-volume/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–85.85 cm; 625 trees.
   - [NSVB hickory spp., Hot Continental Division (220): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-220-volume/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 2.54–58.42 cm; 118 trees.
   - [NSVB hickory spp., Subtropical Regime Mountains (M230): total stem wood volume (inside bark), Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-carya-spp-m230-volume/), Westfall et al. 2024: Carya, United States; inputs DBH + Height; DBH 15.75–53.85 cm; 92 trees.