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.

Picea mariana (P. Mill.) B.S.P. [Black Spruce]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
18
 
 
 Arithmetic Mean
36.1%
 
 
 Standard Error
10.1%
 
 

Individual Experiment Results

Journal References

Experimental Conditions
300 ppm
600 ppm
900 ppm

Bigras and Bertrand (2006)

Biomass at the end of growing season of well watered and fertilized plants grown from seed in containers filled with a 3:1 mix of peat:vermiculate in mini-greenhouses located within a larger greenhouse where they were exposed to environmental conditions that simulated a complete year
34%

 

 

Bigras and Bertrand (2006)

Biomass at the end of winter of well watered and fertilized plants grown from seed in containers filled with a 3:1 mix of peat:vermiculate in mini-greenhouses located within a larger greenhouse where they were exposed to environmental conditions that simulated a complete year
16%

 

 

Johnsen (1993)

growth chambers, day 78, well-watered
6%

 

 

Johnsen (1993)

growth chambers, day 78, drought
22%

 

 

Johnsen (1993)

growth chambers, day 155, well-watered
20%

 

 

Johnsen (1993)

growth chambers, day 155, drought
27%

 

 

Johnsen (1993)

growth chambers, day 78, low nutrients
11%

 

 

Johnsen (1993)

growth chambers, day 78, high nutrients
14%

 

 

Johnsen (1993)

growth chambers, day 155, low nutrients
16%

 

 

Johnsen (1993)

growth chambers, day 155, high nutrients
26%

 

 

Johnsen and Seiler (1996)

greenhouse growth chambers
52%

 

 

Major et al. (2015)

Well-watered and fertilized trees grown from the seeds of 12 populations from across eastern Canada for a period of five years, while rooted in deep felt root control bags within climate-controlled chambers located in a greenhouse, where CO2 enrichment was started at the beginning of the second of the five years
9%

 

 

Marfo and Dang (2009)

Well watered and fertilized one-year-old seedlings grown in pots within greenhouses for 4.5 additional months under 100% full light conditions
61%

 

 

Marfo and Dang (2009)

Well watered and fertilized one-year-old seedlings grown in pots within greenhouses for 4.5 additional months under 50% of full light conditions
61%

 

 

Marfo and Dang (2009)

Well watered and fertilized one-year-old seedlings grown in pots within greenhouses for 4.5 additional months under 30% of full light conditions
200%

 

 

Tjoelker et al. (1998)

Seedlings grown for three months in controlled environment chambers at day/night temperatures ranging from 21/15 to 30/24?C (average results)
34%

 

 

Zhang and Dang (2007)

Well watered and fertilized one-year-old seedlings grown one to a pot (13.5 cm high, 11 cm diameter) filled with a 1:1 mixture of peat moss and vermiculite for four months (March-June) in greenhouses at low (7-10?C) soil temperatures
23%

 

 

Zhang and Dang (2007)

Well watered and fertilized one-year-old seedlings grown one to a pot (13.5 cm high, 11 cm diameter) filled with a 1:1 mixture of peat moss and vermiculite for four months (March-June) in greenhouses at high (27-30?C) soil temperatures
18%

 

 

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