300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Southern California, USA, chaparral ecosystem (dominated by the resprouting shrub Adenostoma fasciculatum and the obligate seeder Ceanothus greggii, a nitrogen fixer)
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300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
3
|
|
|
| Arithmetic Mean |
246.7%
|
|
|
| Standard Error |
13.4%
|
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Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Baraldi et al. (2004) |
Natural plant community exposed for four consecutive years to a range of atmospheric CO2 concentrations in naturally-lit null-balance chambers within a computer-controlled glasshouse system; 0800 hours, June
|
215%
|
|
|
|
Baraldi et al. (2004) |
Natural plant community exposed for four consecutive years to a range of atmospheric CO2 concentrations in naturally-lit null-balance chambers within a computer-controlled glasshouse system; 1200 hours, June
|
270%
|
|
|
|
Baraldi et al. (2004) |
Natural plant community exposed for four consecutive years to a range of atmospheric CO2 concentrations in naturally-lit null-balance chambers within a computer-controlled glasshouse system; 1600 hours, June
|
255%
|
|
|