300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Calcareous Grassland (C3)
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
3
|
|
|
| Arithmetic Mean |
43%
|
|
|
| Standard Error |
9.9%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Zak et al. (2011) |
Trees grown for 12 years from aspen ramets and paper birch and sugar maple seedlings at the Rhinelander (Wisconsin, USA) FACE facility, with results shown for year 10 of the study
|
65%
|
|
|
|
Zak et al. (2011) |
Trees grown for 12 years from aspen ramets and paper birch and sugar maple seedlings at the Rhinelander (Wisconsin, USA) FACE facility, with results shown for year 11 of the study
|
23%
|
|
|
|
Zak et al. (2011) |
Trees grown for 12 years from aspen ramets and paper birch and sugar maple seedlings at the Rhinelander (Wisconsin, USA) FACE facility, with results shown for year 12 of the study
|
41%
|
|
|