300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Quercus petraea (Matt.) Liebl. [Durmast oak]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
23.5%
|
|
|
| Standard Error |
0.4%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Kreuzwieser et al. (2006) |
Mature trees growing naturally in a forest northwest of Basel, Switzerland, where leaves were only exposed to elevated CO2 for a few minutes during the measurement period on several sunny days in August of 2000
|
24%
|
|
|
|
Kreuzwieser et al. (2006) |
Mature trees growing naturally in a forest northwest of Basel, Switzerland, where leaves were only exposed to elevated CO2 for a few minutes during the measurement period on several sunny days in August of 2001
|
23%
|
|
|