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


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European Beech (Fagus sylvatica L.) and Norway Spruce (Picea abies L.) Ecosystem



Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
6
 
 
 Arithmetic Mean
45.5%
 
 
 Standard Error
12.5%
 
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Sonnleitner et al. (2001)

Leaf biomass of plants grown for three years in an acidic sandy loam soil in open-top chambers near Zurich, Switzerland
29%

 

 

Sonnleitner et al. (2001)

Root biomass of plants grown for three years in an acidic sandy loam soil in open-top chambers near Zurich, Switzerland
37%

 

 

Sonnleitner et al. (2001)

Leaf biomass of plants grown for three years in a calcareous loamy sand in open-top chambers near Zurich, Switzerland
23%

 

 

Sonnleitner et al. (2001)

Root biomass of plants grown for three years in a calcareous loamy sand in open-top chambers near Zurich, Switzerland
27%

 

 

Wiemken et al. (2001)

Fine-root biomass of eedlings grown on nutrient poor soil in open-top chambers for four years
45%

 

 

Wiemken et al. (2001)

Fine-root biomass of eedlings grown on nutrient rich soil in open-top chambers for four years
112%

 

 

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