300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Calluna vulgaris (L.) Hull [Heather]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
9
|
|
|
| Arithmetic Mean |
17.1%
|
|
|
| Standard Error |
5.4%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Arp et al. (1998) |
greenhouse, low nitrogen
|
11%
|
|
|
|
Arp et al. (1998) |
greenhouse, high nitrogen
|
16%
|
|
|
|
Arp et al. (1998) |
greenhouse, low water, low nitrogen
|
-8%
|
|
|
|
Arp et al. (1998) |
greenhouse, low water, high nitrogen
|
53%
|
|
|
|
Arp et al. (1998) |
greenhouse, high water, low nitrogen
|
0%
|
|
|
|
Arp et al. (1998) |
greenhouse, high water, high nitrogen
|
25%
|
|
|
|
Hoorens et al. (2003) |
Well watered and fertilized transplants grown for 16 weeks in 880-ml pots filled with coarse sand in greenhouse compartments
|
25%
|
|
|
|
Verburg et al. (1998) |
greenhouse, low nitrogen
|
15%
|
|
|
|
Verburg et al. (1998) |
greenhouse, high nitrogen
|
17%
|
|
|