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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.

Semi-natural grassland in central Sweden

Journal Reference

Experimental Conditions
300 ppm

600 ppm

900 ppm
Sindhoj et al. (2004)
Plants enclosed by open-top chambers for five consecutive years; shoot biomass at year 1
43%
 
 
Sindhoj et al. (2004)
Plants enclosed by open-top chambers for five consecutive years; shoot biomass at year 5
4%
 
 
Sindhoj et al. (2004)
Plants enclosed by open-top chambers for five consecutive years; root biomass at year 1
21%
 
 
Sindhoj et al. (2004)
Plants enclosed by open-top chambers for five consecutive years; root biomass at year 5
69%