300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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California Annual Grassland on Serpentine-Derived Soil
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
11%
|
|
|
| Standard Error |
0.7%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Fredeen et al. (1998) |
Plants growing under low nutrient status in PVC-tube microsoms at mid-season peak growth
|
10%
|
|
|
|
Fredeen et al. (1998) |
Plants growing under high nutrient status in PVC-tube microsoms at mid-season peak growth
|
12%
|
|
|