300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Quercus alba L. [White Oak]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
3
|
3
|
3
|
| Arithmetic Mean |
142%
|
0%
|
0%
|
| Standard Error |
38.3%
|
0
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Gunderson et al. (1993) |
open-top chambers, 1990
|
168%
|
||
|
Gunderson et al. (1993) |
open-top chambers, 1991
|
207%
|
||
|
Wullschleger et al. (1992) |
field, open-top chambers
|
51%
|