300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Experimental wetland communities comprised of native graminoids (grasses, sedges and bulrushes) and either high invasion (>90% cover) or low invasion (<50% cover) by reed canary grass (Phalaris arundinacea L.)
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300 ppm
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600 ppm
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900 ppm
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| Number of Results |
4
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|
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| Arithmetic Mean |
41.5%
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|
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| Standard Error |
10%
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Experimental Conditions
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300 ppm
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600 ppm
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900 ppm
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Kao-Kniffin and Balser (2007) |
Total above and below ground biomass of plants grown for four months in mesocosms located within greenhouses at low soil N (5 mg N l-1) and low invasion (<50% cover)
|
76%
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|
|
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Kao-Kniffin and Balser (2007) |
Total above and below ground biomass of plants grown for four months in mesocosms located within greenhouses at low soil N (5 mg N l-1) and high invasion (>90% cover)
|
31%
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|
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Kao-Kniffin and Balser (2007) |
Total above and below ground biomass of plants grown for four months in mesocosms located within greenhouses at high soil N (30 mg N l-1) and low invasion (<50% cover)
|
30%
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|
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Kao-Kniffin and Balser (2007) |
Total above and below ground biomass of plants grown for four months in mesocosms located within greenhouses at high soil N (30 mg N l-1) and high invasion (>90% cover)
|
29%
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