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.

Pinus taeda L. [Loblolly Pine]


Statistics
 
300 ppm
600 ppm
900 ppm
 Number of Results
48
5
 
 Arithmetic Mean
87.6%
230.4%
 
 Standard Error
9.8%
96
 

Individual Experiment Results

Journal References
Experimental Conditions
300 ppm
600 ppm
900 ppm

Ameye et al. (2012)
Photosynthesis of the most recent fully-developed leaves of well watered and fertilized seedlings grown in 7.6-L pots out-of-doors at Athens, Georgia (USA) within polyethylene chambers at ambient air temperature (Tamb)
26%

 
 

Ameye et al. (2012)
Photosynthesis of the most recent fully-developed leaves of well watered and fertilized seedlings grown in 7.6-L pots out-of-doors at Athens, Georgia (USA) within polyethylene chambers at elevated air temperature (Tamb + 3°C)
70%

 
 

Crous et al. (2008)
Photosynthesis of current-year first-flush needles of trees in their 8th to 9th year of atmospheric CO2 enrichment at the Duke Forest FACE facility
102%

 
 

Crous et al. (2008)
Photosynthesis of one-year-old needles of trees in their 8th to 9th year of atmospheric CO2 enrichment at the Duke Forest FACE facility
60%

 
 

Crous and Ellsworth (2004)
Mature trees in a closed-canopy forest over the first six years of a long-term FACE study over all needle age classes and canopy locations
90%

 
 

DeLucia et al. (2005)
Net ecosystem productivity of 13-year-old trees exposed to elevated CO2 for an additional 5 years in the Duke Forest FACE study
62%

 
 

Ellsworth (1999)
FACE, peak-drought
126%

 
 

Ellsworth (1999)
FACE, well-watered
104%

 
 

Ellsworth et al. (1995)
FACE
98%

 
 

Ellsworth et al. (2004)
Trees grown under natural conditions for four years in a FACE study
75%

 
 

Fetcher et al. (1988)
pots (3.6 liter)
78%

127%
 

Griffin et al. (1993)
glasshouse, high nitrogen
13%

 
 

Groninger et al. (1996)
greenhouse
289%

 
 

Groninger et al. (1996)
greenhouse, mixed stand with Acer rubrum
271%

 
 

Hymus et al. (1999)
FACE, February 1997
39%

 
 

Hymus et al. (1999)
FACE, April 1997
78%

 
 

Hymus et al. (1999)
FACE, August 1997
136%

 
 

Hymus et al. (1999)
FACE, November 1997
75%

 
 

Hymus et al. (1999)
FACE, February 1998
86%

 
 

Lewis et al. (1996)
open-top chamber, 1993
65%

 
 

Lewis et al. (1996)
open-top chamber, 1994
36%

 
 

Liu and Teskey (1995)
branch chamber, 1992
88%

 
 

Liu and Teskey (1995)
branch chamber, 1993
109%

 
 

Logan et al. (2009)
Photosynthesis of first-year needles measured in the summer growing season of the eighth year of the Duke Forest FACE study
75%

 
 

Logan et al. (2009)
Photosynthesis of second-year needles measured in the summer growing season of the eighth year of the Duke Forest FACE study
36%

 
 

Logan et al. (2009)
Photosynthesis of first-year needles measured in the winter growing season of the eighth year of the Duke Forest FACE study
0%

 
 

Maier et al. (2002)
open-top chambers, 1-year old, June, fertilized
177%

 
 

Maier et al. (2002)
open-top chambers, 1-year old, June, unfertilized
57%

 
 

Maier et al. (2002)
open-top chambers, current year, July, fertilized
137%

 
 

Maier et al. (2002)
open-top chambers, current year, July, unfertilized
63%

 
 

Maier et al. (2002)
open-top chambers, current year, September, fertilized
193%

 
 

Maier et al. (2002)
open-top chambers, current year, September, unfertilized
59%

 
 

Maier et al. (2008)
Photosynthesis of current-year needles of trees in their 9th year of atmospheric CO2 enrichment at the Duke Forest FACE facility
78%

 
 

Maier et al. (2008)
Photosynthesis of one-year-old needles of trees in their 9th year of atmospheric CO2 enrichment at the Duke Forest FACE facility
64%

 
 

Matamala and Schlesinger (2000)
FACE, 1997
83%

 
 

Matamala and Schlesinger (2000)
FACE, 1998
240%

 
 

Rogers and Ellsworth (2002)
2.75-year forest FACE study
38%

 
 

Schafer et al. (2003)
In the third and fourth year of the Duke Forest FACE study
70%

 
 

Springer et al. (2005)
Thirteen-year-old trees grown for four, five and six additional years in the Duke Forest FACE experiment on nutrient-poor, clay-rich Alfisols; (sun needles)
73%

 
 

Springer et al. (2005)
Thirteen-year-old trees grown for four, five and six additional years in the Duke Forest FACE experiment on nutrient-poor, clay-rich Alfisols; (shade needles)
41%

 
 

Tissue et al. (1997)
4-yrs in open-top chambers; winter
29%

 
 

Tissue et al. (1997)
4-yrs in open-top chambers; summer
90%

 
 

Tolley and Strain (1985)
pots (0.25 liter), water-stressed, low light
90%

450%
 

Tolley and Strain (1985)
pots (0.25 liter), well-watered, low light
0%

40%
 

Tolley and Strain (1985)
pots (0.25 liter), water-stressed, high light
275%

525%
 

Tolley and Strain (1985)
pots (0.25 liter), well-watered, high light
0%

10%
 

Wertin et al. (2012)
Photosynthesis of one-year-old seedlings grown out-of-doors in 8-L containers filled with a potting medium placed within poly-film chambers at a Cool site within the species current range [Cool (C) and Warm (W), where TW = TC + 4.1°C] - at above ambient temperature for the site [ambient (TA) + 2°C)] - and averaged across water treatments [where soil moisture conditions were High (volumetric soil water content = 45%) and Low (volumetric soil water content = 32%)]
29%

 
 

Wertin et al. (2012)
Photosynthesis of one-year-old seedlings grown out-of-doors in 8-L containers filled with a potting medium placed within poly-film chambers at a Warm site within the species current range [Cool (C) and Warm (W), where TW = TC + 4.1°C] - at above ambient temperature for the site [ambient (TA) + 2°C)] - and averaged across water treatments [where soil moisture conditions were High (volumetric soil water content = 45%) and Low (volumetric soil water content = 32%)]
32%

 
 

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