Effect of Elevated CO2 on the Root Mass Fraction of Plants.

The article discusses a study by X. Wang et al regarding the effects of ozone pollution, increased carbon levels, soil fertility and water availability on plants. By introducing these factors at different rates on plants, the researchers measured the relationship of the plant's root mass to total biomass to determine the degree of root mass fraction (RMF). Comparing various journals, they came up with 1,349 RMF results. They also found that decreased water and soil fertility increased the RMF, and that increased carbon levels had no effect on RMF.