300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Larrea tridentata (Sesse & Moc. ex DC.) Coville [Creosote Bush]
| 
             300 ppm 
           | 
          
             600 ppm 
           | 
          
             900 ppm 
           | 
        |
| Number of Results | 
             8 
           | 
          
             | 
          
             | 
        
| Arithmetic Mean | 
             104.9% 
           | 
          
             | 
          
             | 
        
| Standard Error | 
             22.9% 
           | 
          
             | 
          
             | 
        
| 
             Experimental Conditions 
           | 
          
             300 ppm 
           | 
          
             600 ppm 
           | 
          
             900 ppm 
           | 
        |
| 
             BassiriRad et al. (1998)  | 
          
             growth chambers 
           | 
          
             59% 
           | 
          
             
  | 
          
             | 
        
| 
             Clark et al. (2010)  | 
          
             Shoot biomass of plants grown from seed within a greenhouse for one month in water-saturated sterilized sand in transparent domed trays that maintained high humidity, after which they were transplanted to 5.5-L pots filled with sand for nine more months of growth, during which time they were well watered and fertilized 
           | 
          
             54% 
           | 
          
             
  | 
          
             | 
        
| 
             Clark et al. (2010)  | 
          
             Root biomass of plants grown from seed within a greenhouse for one month in water-saturated sterilized sand in transparent domed trays that maintained high humidity, after which they were transplanted to 5.5-L pots filled with sand for nine more months of growth, during which time they were well watered and fertilized 
           | 
          
             188% 
           | 
          
             
  | 
          
             | 
        
| 
             Clark et al. (2010)  | 
          
             Shoot biomass of plants grown from seed within a greenhouse for one month in water-saturated sterilized sand in transparent domed trays that maintained high humidity 
           | 
          
             52% 
           | 
          
             
  | 
          
             | 
        
| 
             Clark et al. (2010)  | 
          
             Root biomass of plants grown from seed within a greenhouse for one month in water-saturated sterilized sand in transparent domed trays that maintained high humidity 
           | 
          
             123% 
           | 
          
             
  | 
          
             | 
        
| 
             Housman et al. (2006)  | 
          
             Adult shrubs growing naturally at the Nevada Desert FACE facility in southern Nevada, USA, during "an anomalously wet year" (1998) 
           | 
          
             230% 
           | 
          
             
  | 
          
             | 
        
| 
             Housman et al. (2006)  | 
          
             Adult shrubs growing naturally at the Nevada Desert FACE facility in southern Nevada, USA, during the last of three years of below-average rainfall (2001) 
           | 
          
             55% 
           | 
          
             
  | 
          
             | 
        
| 
             Obrist and Arnone III (2003)  | 
          
             Well watered plants grown for 178 days after seeding in 3.6-L containers filled with a 1:1 mixture of topsoil and blasting sand located within controlled-environment growth chambers 
           | 
          
             78% 
           | 
          
             
  | 
          
             |