Table 4

Estimates of maximum rooting depth, in various ecosystem types (Canadell et al. 1996).

Ecosystem typeRange of rooting depths (m)
Boreal forest1.2–3.3
Crops1.0–3.7
Desert1.8–53.0
Sclerophyllous shrubland and forest: shrubs1.5–13.2
trees2.7–40.0
Temperate coniferous forest2.0–7.5
Temperate deciduous forest1.8–4.4
Temperate grassland1.2–6.3
Tropical deciduous forest2.0–4.7
Tropical evergreen forest2.0–18.0
Tropical grassland and savanna1.6–68.0
Tundra0.3–0.9