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Percent Dry Weight (Biomass) Increases for 300, 600 and 900 ppm
Increases in the Air's CO2 Concentration:

For a more detailed description of this table, click here.

Moderately fertile California grassland of mostly small annual species

Journal Reference

Experimental Conditions
300 ppm

600 ppm

900 ppm
Dukes et al. (2005)
Five-year FACE study of moderately fertile California grassland comprised of mostly small annual species
0%
 
 
Peters et al. (2007)
FACE study conducted at the Jasper Ridge Biological Preserve in Northern California (USA)
17-39%
 
 
Peters et al. (2007)
Photosynthesis of legumes growing in a California grassland composed primarily of introduced European annual grasses and forbs from a FACE study conducted at the Jasper Ridge Biological Preserve in Northern California (USA)
75-180%