300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Alnus rubra Bong. [Red Alder]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
6
|
|
|
| Arithmetic Mean |
34.5%
|
|
|
| Standard Error |
7.7%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Arnone and Gordon (1990) |
shaded greenhouse, 0 mg l-1 nitrogen
|
45%
|
|
|
|
Arnone and Gordon (1990) |
shaded greenhouse, 20 mg l-1 nitrogen
|
21%
|
|
|
|
Hibbs et al. (1995) |
growth chambers, 107 days,periodic watering
|
11%
|
|
|
|
Hibbs et al. (1995) |
growth chambers, 107 days, well-watered
|
18%
|
|
|
|
Hibbs et al. (1995) |
growth chambers, 147 days,periodic watering
|
62%
|
|
|
|
Hibbs et al. (1995) |
growth chambers, 147 days, well-watered
|
50%
|
|
|