Table 3.
Global Land C (in soils and vegetation) accumulated over the specified simulation period on each column, estimated as the difference in total Land C at end and the start of the simulation period
| 1860–1899 μ ± σ (range) | 1900–1999 μ ± σ (range) | 2000–2099 μ ± σ (range) | 1860–2100 μ ± σ (range) | |
|---|---|---|---|---|
| Global land C accumulation (Pg) | ||||
| Control | 11.6 ± 0.5 (11–13) | 129.6 ± 7 (111–142) | 436 ± 113 (183–644) | 577 ± 118 (308–797) |
| Geog | 11.9 ± 0.5 (11–13) | 135.3 ± 6 (118–146) | 508 ± 105 (251–684) | 656 ± 111 (382–840) |
| Geog + Acclim | 11.3 ± 0.5 (11–13) | 139.1 ± 6 (124–149) | 543 ± 95.0 (323–701) | 694 ± 100 (459–860) |
| Individual effects (Pg) | ||||
| Geographical effect | 0.3 ± 0.07 (0.2–0.5) | 6 ± 0.7 (4–7) | 72 ± 14 (32–108) | 79 ± 15 (37–116) |
| Thermal acclimation effect | −0.6 ± 0.06 (−0.7, −0.5) | 4 ± 0.6 (3–5) | 35 ± 14 (17–72) | 38 ± 15 (19–77 ) |
| Enhancement (%) | ||||
| Geographical effect | 3 ± 0.7 (2–5) | 5 ± 0.7 (3–6) | 19 ± 8 (5–41) | 15 ± 5 (5–29) |
| Thermal acclimation | −5 ± 0.4 (−6, −4) | 3 ± 0.6 (2–4) | 8 ± 6 (2–29) | 6 ± 4 (2–20) |
Individual geographical and thermal acclimation effects and enhancement were estimated with Eqns 6 and 7 respectively. Values correspond to global mean ± SD values across the 22 simulations and range (minimum–maximum) of values obtained across simulations.