# Alnus incana

Betulaceae. 9 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.

## Aboveground biomass

1. Karaban et al. 2023 (this species): Fitted on this species; 50 trees; Read from the original paper.
   - [Gray alder, Arkhangelsk: aboveground biomass from D (Table 2)](https://treeallometry.org/equations/karaban-2023-agb-d/), Karaban et al. 2023: Alnus incana, Russia; inputs DBH; DBH 3.6–16.9 cm; 50 trees.
   - [Gray alder, European Russia pooled: aboveground biomass from D (Eq. 5)](https://treeallometry.org/equations/karaban-2023-agb-d-pooled/), Karaban et al. 2023: Alnus incana, Russia; inputs DBH.

## Stem biomass

1. Karaban et al. 2023 (this species): Fitted on this species; 50 trees; DBH 3.6–16.9 cm; Read from the original paper.
   - [Gray alder, Arkhangelsk: stem biomass (in bark) from D (Table 2)](https://treeallometry.org/equations/karaban-2023-stem-d/), Karaban et al. 2023: Alnus incana, Russia; inputs DBH; DBH 3.6–16.9 cm; 50 trees.

2. Tretyakov et al. 2022 (this species): Fitted on this species; 21 trees; DBH 4–17 cm; Read from the original paper; Checked against values printed in the paper.
   - [Grey alder trunk wood (bark excluded) dry mass from DBH (general equation)](https://treeallometry.org/equations/tretyakov-2022-wood/), Tretyakov et al. 2022: Alnus incana, Russia; inputs DBH; DBH 4–17 cm; 21 trees.

## Branch biomass

1. Karaban et al. 2023 (this species): Fitted on this species; 50 trees; DBH 3.6–16.9 cm; Read from the original paper.
   - [Gray alder, Arkhangelsk: branch biomass from D (Table 2)](https://treeallometry.org/equations/karaban-2023-branch-d/), Karaban et al. 2023: Alnus incana, Russia; inputs DBH; DBH 3.6–16.9 cm; 50 trees.

2. Tretyakov et al. 2022 (this species): Fitted on this species; 21 trees; DBH 4–17 cm; Read from the original paper; Checked against values printed in the paper.
   - [Grey alder branches dry mass from DBH (general equation)](https://treeallometry.org/equations/tretyakov-2022-branches/), Tretyakov et al. 2022: Alnus incana, Russia; inputs DBH; DBH 4–17 cm; 21 trees.

## Foliage biomass

1. Karaban et al. 2023 (this species): Fitted on this species; 50 trees; DBH 3.6–16.9 cm; Read from the original paper.
   - [Gray alder, Arkhangelsk: foliage biomass from D (Table 2)](https://treeallometry.org/equations/karaban-2023-foliage-d/), Karaban et al. 2023: Alnus incana, Russia; inputs DBH; DBH 3.6–16.9 cm; 50 trees.

2. Tretyakov et al. 2022 (this species): Fitted on this species; 21 trees; DBH 4–17 cm; Read from the original paper; Checked against values printed in the paper.
   - [Grey alder foliage dry mass from DBH (general equation)](https://treeallometry.org/equations/tretyakov-2022-foliage/), Tretyakov et al. 2022: Alnus incana, Russia; inputs DBH; DBH 4–17 cm; 21 trees.

## Root biomass

1. Karaban et al. 2023 (this species): Fitted on this species; 17 trees; Read from the original paper.
   - [Gray alder, southern taiga and mixed-forest data (Kazimirov 1978, Miezīte 2011): root biomass from D and aboveground biomass (Table 2)](https://treeallometry.org/equations/karaban-2023-bgb-d-agb/), Karaban et al. 2023: Alnus incana, Russia, Latvia; inputs DBH + AGB; 17 trees.