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Percent Photosynthesis (Net CO2 Exchange Rate) Increases for 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)
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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Experimental Conditions
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300 ppm
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600 ppm |
900 ppm
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Baraldi et al. (2004)
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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
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215%
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Baraldi et al. (2004)
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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
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270%
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Baraldi et al. (2004)
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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
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255%
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