| Reference and | Warm | Hot | ||
| Parameter | High CO2 | Low CO2 | High CO2 | Low CO2 |
| [10] C |
|
| very negative |
|
| [53] Stem volume |
|
|
|
|
| mixed conifer |
| ?8% |
| ?14.5% |
| pine |
| ?10% |
| ?18% |
| [54] NPP | +2.4% | ?6.3% | +17% | ?19.4% |
| [55] NPP |
|
| +/? with large + by Hudson Bay | boreal large declines |
| [56] NPP | +40% - 100% | ?3% | +100-200% | ?40% |
| [57] NPP | +18%, +6% |
| ?10% |
|
| [58] (excluding Maine) NPP | +50% | no response | +100% | no response |
| [59] NPP |
|
| strong positive | neutral to small negative |
| [60] C | +36%, +16% |
|
| ?11% |
| [61] NPP | +25% | no response | +25% | no response |
| [62] Age 25 stemwood in 2059 | +30.6 ±10% | +6.5 ±5.6% | +30.9 ±10.4% | +7.1 ±6.3% |
| [63] Cool sites (T = 15˚C), AGB | +25% | +15% | +33% | +11% |
| [63] Warm sites (T = 19˚C), AGB | +7% | 0% | +8% | ?4% |
| [67] NPP | +10% - 100% |
|
|
|
| [68] Eastern US C | ?5% | ?12% | +2% | ?15% |
| [68] Western US C | +10% | +3% | +20% | +5% |
| [69] Forest growth |
|
| generally positive |
|
| [70] Forest extent PNW |
|
| +30% |
|
| [73] NPP | +26% - 33% |
|
|
|
| [74] LAI | slightly positive all species |
| very positive all species |
|
| [74] Ranges | shifts |
| large shifts |
|
| [75] aNPP |
|
| +0, 50, 58, 83, 300% by species |
|
| [76] Forest cover | +3.13% |
| +3.24% |
|
| [77] Canada forest type | some decid. expansion N. |
| decid. replace conifer |
|
| [84] Boreal conifer area |
|
| half lost to decid. | most lost to decid. |