# Domke et al. 2019: 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Volume 4, Chapter 4: Forest Land

Domke, G., Brandon, A., Diaz-Lasco, R., et al. (2019). Chapter 4: Forest Land. In: 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Volume 4: Agriculture, Forestry and Other Land Use. IPCC.

- Link: https://www.ipcc-nggip.iges.or.jp/public/2019rf/vol4.html
- Access: open access
- Copy we read: https://www.ipcc-nggip.iges.or.jp/public/2019rf/pdf/4_Volume4/19R_V4_Ch04_Forest%20Land.pdf
- Status: current (link checked weekly); last checked 2026-11-01
- Page: https://treeallometry.org/sources/ipcc-2019-v4-ch4/

## Equations from this source (8)

### Root-to-shoot ratio, Tropical dry forest, Africa (natural, AGB ≤ 125 t/ha)

Root:shoot ratio for Tropical dry forest trees, Africa; Tropical dry ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical dry | Africa | Natural ≤ 125 0.332 0.247 SD 1, 12, 17, 18, 19

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-dry-africa-le125/

### Root-to-shoot ratio, Tropical dry forest, North and South America (natural, AGB ≤ 125 t/ha)

Root:shoot ratio for Tropical dry forest trees, North and South America; Tropical dry ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical dry | North and South America | Natural ≤ 125 0.334 0.040 SD 4, 12, 20

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-dry-americas-le125/

### Root-to-shoot ratio, Tropical moist forest, North and South America (natural, AGB ≤ 125 t/ha)

Root:shoot ratio for Tropical moist forest trees, North and South America; Tropical moist ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical moist | North and South America | Natural ≤ 125 0.2845 0.061 SD 12

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-moist-americas-le125/

### Root-to-shoot ratio, Tropical mountain forest, North and South America (natural, AGB ≤ 125 t/ha)

Root:shoot ratio for Tropical mountain forest trees, North and South America; Tropical mountain ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical mountain | North and South America | Natural ≤ 125 0.348 ±90% default 4

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-mountain-americas-le125/

### Root-to-shoot ratio, Tropical rainforest forest, Africa (natural, AGB > 125 t/ha)

Root:shoot ratio for Tropical rainforest forest trees, Africa; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical rainforest | Africa | Natural > 125 0.532 ±90% default 2, 3

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-rainforest-africa-gt125/

### Root-to-shoot ratio, Tropical rainforest forest, Africa (natural, AGB ≤ 125 t/ha)

Root:shoot ratio for Tropical rainforest forest trees, Africa; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical rainforest | Africa | Natural ≤ 125 0.825 ±90% default 1, 2

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-rainforest-africa-le125/

### Root-to-shoot ratio, Tropical rainforest forest, Asia (natural, AGB ≤ 125 t/ha)

Root:shoot ratio for Tropical rainforest forest trees, Asia; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical rainforest | Asia | Natural ≤ 125 0.207 0.072 SD 6, 7, 8

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-rainforest-asia-le125/

### Root-to-shoot ratio, Tropical rainforest forest, North and South America (natural, AGB ≤ 125 and > 125 (same value) t/ha)

Root:shoot ratio for Tropical rainforest forest trees, North and South America; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones). Inputs: constant.

As printed (Table 4.4 (Updated), p. 4.18):

> Tropical rainforest | North and South America | Natural ≤ 125 0.221 0.036 SD 4

Page: https://treeallometry.org/equations/ipcc-2019-v4-ch4-rs-rainforest-americas-natural/