300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Acer saccharinum L. [Silver Maple]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
9
|
9
|
9
|
| Arithmetic Mean |
16.4%
|
0%
|
0%
|
| Standard Error |
7.2%
|
0
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Edwards and Norby (1999) |
open-top chambers, 1995, ambient temperature
|
-3%
|
||
|
Edwards and Norby (1999) |
open-top chambers, 1995, elevated temperature
|
6%
|
||
|
Edwards and Norby (1999) |
open-top chambers, 1996, ambient temperature
|
12%
|
||
|
Edwards and Norby (1999) |
open-top chambers, 1996, elevated temperature
|
26%
|
||
|
Karnosky et al. (2005) |
Plants grown from the young seedling stage for three years under natural environmental conditions at the Aspen FACE site near Rhinelander, Wisconsin, USA
|
0%
|
||
|
Karnosky et al. (2005) |
Plants grown from the young seedling stage for four years under natural environmental conditions at the Aspen FACE site near Rhinelander, Wisconsin, USA
|
0%
|
||
|
Sefcik et al. (2006) |
Photosynthesis of light-saturated seedlings grown for two years in open-top chambers within a 90-year-old northern hardwood forest in Michigan (USA)
|
57%
|
||
|
Springer and Thomas (2007) |
Photosynthesis of saplings of understory trees in September of the seventh year of the Duke Forest FACE experiment
|
|||
|
Williams et al. (1986) |
pots (8.2 liter)
|
50%
|