# Aleurites moluccana height from D (linear, Table 2)

Height equation for Aleurites moluccana, Indonesia, from Tiralla et al. 2013. 23 trees, DBH 14.1–51.6 cm. Listed on Tree Allometrics, a free library of tree allometric equations, each quoted from the source that published it.

## Equation

As printed in Tiralla et al. 2013 (Table 2):

> Aleurites moluccana: H = a + b x DBH; a 3.6784, b 0.3101, r2 0.643

Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#equation

In this library's units, ready to compute (height in m):

```
Height = 3.6784 + 0.3101 * D
```

Inputs: D = Diameter at breast height (1.3 m) (cm).
The source's own form: 3.6784 + 0.3101 * DBH, with DBH in cm; output in m.
Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#canonical

## What it covers

- Output: Height, m
- Taxon: Aleurites moluccana (species), family Euphorbiaceae; broadleaf
- Where: Bulili, Kecamatan Palolo, Central Sulawesi (shade trees in cacao agroforestry). Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#where
- Biomes: tropical
- Stand: agroforestry
- Trees measured: 23. Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#n_trees
- DBH range: 14.1–51.6 cm. Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#dbh
- Height range: 7.9–25.2 m. Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#height
- R²: 0.643. Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#r2
- Method: linear regression. Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#method
- Verification: read in the original source
- Last checked: 2026-11-02. Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#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

Tiralla, N., Panferov, O., & Knohl, A. (2013). Allometric relationships of frequently used shade tree species in cacao agroforestry systems in Sulawesi, Indonesia. Agroforestry Systems, 87, 857-870.

- DOI: https://doi.org/10.1007/s10457-013-9602-4
- Access: open access
- Copy we read: https://link.springer.com/article/10.1007/s10457-013-9602-4
- Every equation from this source: https://treeallometry.org/sources/tiralla-2013/
- Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#source

## The facts, in the source's words

**Equation** (Table 2):

> Aleurites moluccana: H = a + b x DBH; a 3.6784, b 0.3101, r2 0.643

Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#equation

**Trees measured** (Field measurements):

> 23 A. moluccana trees

Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#quote-fit-n-trees

**Largest DBH** (Table 1, range of application):

> dbh (cm) 14.1/51.6; Height (m) 7.9/25.2

Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#quote-fit-dbh-max-cm

**Our note:** Shade-tree structural study; only height from DBH is a tree-level size equation here (other relationships are crown or trunk height).

## 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 |
| --- | --- | --- | --- |
| D = 20 | 9.88 | 9.88 | Computed from the printed form: computed from the published form (coefficients as printed) |
| D = 40 | 16.1 | 16.1 | Computed from the printed form: computed from the published form (coefficients as printed) |

Cite: https://treeallometry.org/equations/tiralla-2013-h-aleurites/#checks

## How to cite

Cite the source for the equation: Tiralla, N., Panferov, O., & Knohl, A. (2013). Allometric relationships of frequently used shade tree species in cacao agroforestry systems in Sulawesi, Indonesia. Agroforestry Systems, 87, 857-870. https://doi.org/10.1007/s10457-013-9602-4

Cite this page for the record and checks: Tree Allometrics (Restoration Scope), "Aleurites moluccana height from D (linear, Table 2)", checked 2026-11-02, https://treeallometry.org/equations/tiralla-2013-h-aleurites/. 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/tiralla-2013-h-aleurites.json
Report a problem: email info@restorationscope.com with the equation id (tiralla-2013-h-aleurites) and where the right value appears.