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.

Metasequoia glyptostroboides Hu & Cheng [Dawn Redwood]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
3
 
 
 Arithmetic Mean
86.3%
 
 
 Standard Error
42.8%
 
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Llorens et al. (2009)

Photosynthesis of well watered and fertilized one-year-old saplings grown from seed and maintained for four more years in 6-liter pots (filled with a 13:5:2 mix of sand:vermiculite:peat) within controlled-environment growth rooms, with measurements made in the fourth year of the study (middle of first-half growing season)
188%

 

 

Llorens et al. (2009)

Photosynthesis of well watered and fertilized one-year-old saplings grown from seed and maintained for four more years in 6-liter pots (filled with a 13:5:2 mix of sand:vermiculite:peat) within controlled-environment growth rooms, with measurements made in the fourth year of the study (end of growing season)
58%

 

 

Royer et al. (2003)

Controlled environment chambers,simulated ancient polar environment
13%

 

 

Printer Friendly Version