# Acer macrophyllum

Sapindaceae. 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 0.47 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. Chojnacky et al. 2014 (pooled, includes it): Pooled fit on 5 species, this one included; Number of trees not stated; DBH 3–66 cm; Read from the original paper.
   - [North American taxa group: Aceraceae < 0.50 spg (Table 5)](https://treeallometry.org/equations/chojnacky-2014-aceraceae-spg-lt-050/), Chojnacky et al. 2014: Aceraceae < 0.50 spg (Acer macrophyllum, A. pensylvanicum, A. rubrum, A. saccharinum, A. spicatum), United States; inputs DBH; DBH 3–66 cm.

## Foliage biomass

1. Westfall et al. 2024 (this species): Fitted on this species; 16 trees; DBH 4.06–43.94 cm; Read from the original paper.
   - [NSVB bigleaf maple, species-level (all ecodivisions): foliage biomass, Schumacher-Hall model (Eq. 1)](https://treeallometry.org/equations/westfall-2024-acer-macrophyllum-foliage/), Westfall et al. 2024: Acer macrophyllum, United States; inputs DBH + Height; DBH 4.06–43.94 cm; 16 trees.

## Stem volume

1. Westfall et al. 2024 (this species): Fitted on this species; 141–142 trees; DBH 7.11–41.91 cm; Read from the original paper.
   - [NSVB bigleaf maple, species-level (all ecodivisions): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 11 in (27.94 cm)](https://treeallometry.org/equations/westfall-2024-acer-macrophyllum-volume-large/), Westfall et al. 2024: Acer macrophyllum, United States; inputs DBH + Height; DBH 27.94–41.91 cm; 142 trees.
   - [NSVB bigleaf maple, species-level (all ecodivisions): total stem wood volume (inside bark), segmented model (Eq. 2), D < 11 in (27.94 cm)](https://treeallometry.org/equations/westfall-2024-acer-macrophyllum-volume-small/), Westfall et al. 2024: Acer macrophyllum, United States; inputs DBH + Height; DBH 7.11–27.94 cm; 142 trees.
   - [NSVB bigleaf maple, Marine Regime Mountains (M240): total stem wood volume (inside bark), segmented model (Eq. 2), D ≥ 11 in (27.94 cm)](https://treeallometry.org/equations/westfall-2024-acer-macrophyllum-m240-volume-large/), Westfall et al. 2024: Acer macrophyllum, United States; inputs DBH + Height; DBH 27.94–41.91 cm; 141 trees.
   - [NSVB bigleaf maple, Marine Regime Mountains (M240): total stem wood volume (inside bark), segmented model (Eq. 2), D < 11 in (27.94 cm)](https://treeallometry.org/equations/westfall-2024-acer-macrophyllum-m240-volume-small/), Westfall et al. 2024: Acer macrophyllum, United States; inputs DBH + Height; DBH 7.11–27.94 cm; 141 trees.