300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Cercis canadensis L. [Eastern Redbud Tree]
300 ppm
|
600 ppm
|
900 ppm
|
|
Number of Results |
3
|
|
|
Arithmetic Mean |
127.3%
|
|
|
Standard Error |
48%
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
DeLucia and Thomas (2000) |
FACE
|
240%
|
|
|
Springer and Thomas (2007) |
Photosynthesis of saplings of understory trees in June of the seventh year of the Duke Forest FACE experiment
|
100%
|
|
|
Springer and Thomas (2007) |
Photosynthesis of saplings of understory trees in September of the seventh year of the Duke Forest FACE experiment
|
42%
|
|
|