# Astrocaryum murumuru AGB from stem height (through origin)

Aboveground biomass equation for Astrocaryum murumuru, Peru, from Goodman et al. 2013. 18 trees, DBH 15–29 cm. Listed on Tree Allometrics, a free library of tree allometric equations, each quoted from the source that published it.

## Equation

As printed in Goodman et al. 2013 (Table 3 ('.' = no intercept; RSE in kg)):

> Astrocaryum AGB Hstem . 21.302 0.957 18 26.1

Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#equation

In this library's units, ready to compute (aboveground biomass in kg):

```
Aboveground biomass = 21.302 * Hstem
```

Inputs: Hstem = Palm stem height, ground to the lowest leaf (m).
The source's own form: 21.302 * Hstem, with Hstem in m; output in kg.
Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#canonical

## What it covers

- Output: Aboveground biomass, kg
- Taxon: Astrocaryum murumuru (species), family Arecaceae; palm
- Where: Terra firme moist forest, forestry concession, Madre de Dios, Peru. Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#where
- Biomes: tropical
- Stand: natural
- Trees measured: 18. Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#n_trees
- DBH range: 15–29 cm. Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#dbh
- R²: 0.957. Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#r2
- Method: Linear regression of AGB on Hstem with no intercept. Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#method
- Verification: read in the original source
- Last checked: 2026-11-01. Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#checked_at

A missing fit statistic is one the source doesn't state, or that we haven't recorded; it is never estimated. Outside the stated DBH range or region, the equation is an extrapolation.

## Source

Goodman, R. C., Phillips, O. L., del Castillo Torres, D., Freitas, L., Cortese, S. T., Monteagudo, A., & Baker, T. R. (2013). Amazon palm biomass and allometry. Forest Ecology and Management, 310, 994–1004.

- DOI: https://doi.org/10.1016/j.foreco.2013.09.045
- Access: paywalled
- Copy we read: http://eprints.whiterose.ac.uk/77906/7/Amazon%20Palm%20Biomass_Goodman_with_coversheet.pdf
- Every equation from this source: https://treeallometry.org/sources/goodman-2013/
- Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#source

## The facts, in the source's words

**Equation** (Table 3 ('.' = no intercept; RSE in kg)):

> Astrocaryum AGB Hstem . 21.302 0.957 18 26.1

Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#equation

**Smallest DBH** (Table 1 (19 harvested; model n = 18)):

> MdD Astrocaryum murumuru 19 15-29 1.5-9.0 7.1-14.7

Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#quote-fit-dbh-min-cm

**Our note:** Hstem = stem height to the base of the lowest leaf (m), fitted range 1.5–9.0 m. Linear model, no log correction.

## Checks this equation passes

On every build, the library's form and the source's own form (in its units) must both give these values within 1%.

| Inputs | Expected | We get | From |
| --- | --- | --- | --- |
| Hstem = 5 | 107 | 107 | Computed from the printed form: computed from the Table 3 coefficient |

Cite: https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/#checks

The calculator on the page shows carbon as biomass × 0.47 (IPCC 2006 Guidelines, Vol. 4, Ch. 4, Table 4.3) and CO₂e as carbon × 44/12.

## How to cite

Cite the source for the equation: Goodman, R. C., Phillips, O. L., del Castillo Torres, D., Freitas, L., Cortese, S. T., Monteagudo, A., & Baker, T. R. (2013). Amazon palm biomass and allometry. Forest Ecology and Management, 310, 994–1004. https://doi.org/10.1016/j.foreco.2013.09.045

Cite this page for the record and checks: Tree Allometrics (Restoration Scope), "Astrocaryum murumuru AGB from stem height (through origin)", checked 2026-11-01, https://treeallometry.org/equations/goodman-2013-astrocaryum-murumuru/. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Quotes are the authors' words.

Data for this equation: https://treeallometry.org/data/equations/goodman-2013-astrocaryum-murumuru.json
Report a problem: email info@restorationscope.com with the equation id (goodman-2013-astrocaryum-murumuru) and where the right value appears.