300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Mixed Stand of Quaking Aspen (Populus tremuloides Michx.) and Sugar Maple (Acer saccharum Marsh.)
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
3
|
|
|
| Arithmetic Mean |
122.3%
|
|
|
| Standard Error |
42.8%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
King et al. (2005) |
Trees grown for seven years in the Aspen FACE study near Rhinelander, Wisconsin, USA
|
90%
|
|
|
|
Pregitzer et al. (2008) |
Root biomass of trees growing in the FACTS-II FACE project near Rhinelander, Wisconsin (USA) under a trace-gas treatment of ambient (A) ozone concentration since May 1998
|
225%
|
|
|
|
Pregitzer et al. (2008) |
Root biomass of trees growing in the FACTS-II FACE project near Rhinelander, Wisconsin (USA) under a trace-gas treatment of elevated (E = 1.5x A) ozone concentration since May 1998
|
52%
|
|
|