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Appendix 5 - Table 5.5Average belowground to aboveground biomass ratio (root-shoot ratio, R) in natural regeneration by broad category (tonnes dry matter/tonne dry matter)

Source: IPCC Good Practice Guidance for LULUCF – Table 3A.1.8

 

Vegetation type

Aboveground biomass (t/ha)

Mean

SD

lower range

upper range

    Tropical/sub-tropical forest

Secondary tropical/sub-tropical forest

<125

0.42

0.22

0.14

0.83

Primary tropical/sub-tropical moist forest

NS

0.24

0.03

0.22

0.33

Tropical/sub-tropical dry forest

NS

0.27

0.01

0.27

0.28

    Conifer forest/ plantation

Conifer forest/plantation

<50

0.46

0.21

0.21

1.06

Conifer forest/plantation

50-150

0.32

0.08

0.24

0.50

Conifer forest/plantation

>150

0.23

0.09

0.12

0.49

    Temperate broadleaf forest/ plantation

Oak forest

>70

0.35

0.25

0.20

1.16

Eucalypt plantation

<50

0.45

0.15

0.29

0.81

Eucalypt plantation

50-150

0.35

0.23

0.15

0.81

Eucalypt forest/plantation

>150

0.20

0.08

0.10

0.33

Other broadleaf forest

<75

0.43

0.24

0.12

0.93

Other broadleaf forest

75-150

0.26

0.10

0.13

0.52

Other broadleaf forest

>150

0.24

0.05

0.17

0.30

    Grassland

Steppe/tundra/prairie grassland

NS

3.95

2.97

1.92

10.51

Temperate/sub-tropical/ tropical grassland

NS

1.58

1.02

0.59

3.11

Semi-arid grassland

NS

2.80

1.33

1.43

4.92

    Other

Woodland/savanna

NS

0.48

0.19

0.26

1.01

Shrubland

NS

2.83

2.04

0.34

6.49

Tidal marsh

NS

1.04

0.21

0.74

1.23

NS = Not specified

 


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