300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Quercus ilex L. [Holly Oak]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
4
|
|
|
| Arithmetic Mean |
38%
|
|
|
| Standard Error |
4.8%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Aranda et al. (2006) |
Leaf biomass of well watered and fertilized two-year-old seedlings grown for four months in controlled environment chambers in ambient and CO2-enriched air, after which they had all biomass above the point of attachment of the cotyledons to their stems removed from them, after which they were grown under the same conditions for four additional months, after which the leaf biomass that was subsequently produced was excised, dried and weighed
|
36%
|
|
|
|
Aranda et al. (2006) |
Stem biomass of well watered and fertilized two-year-old seedlings grown for four months in controlled environment chambers in ambient and CO2-enriched air, after which they had all biomass above the point of attachment of the cotyledons to their stems removed from them, after which they were grown under the same conditions for four additional months, after which the stem biomass that was subsequently produced was excised, dried and weighed
|
42%
|
|
|
|
Cortes et al. (2004) |
Plants grown from seed in pots filled with composted fragments of pine bark in a multi-tunnel greenhouse for a period of five months
|
50%
|
|
|
|
Polle et al. (2001) |
growing naturally near CO2-emitting springs
|
24%
|
|
|