300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Carya glabra (P. Mill.) Sweet [Pignut Hickory]
300 ppm
|
600 ppm
|
900 ppm
|
|
Number of Results |
3
|
|
|
Arithmetic Mean |
57.3%
|
|
|
Standard Error |
22.8%
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
DeLucia and Thomas (2000) |
FACE
|
113%
|
|
|
Springer and Thomas (2007) |
Photosynthesis of saplings of understory trees in June of the seventh year of the Duke Forest FACE experiment
|
26%
|
|
|
Springer and Thomas (2007) |
Photosynthesis of saplings of understory trees in September of the seventh year of the Duke Forest FACE experiment
|
33%
|
|
|