The results show that either increased atmospheric CO2 or N supply can enhance the relative growth rate (RGR) of G. lemaneiformis, but they have no synergic effect.

• 结果表明：CO2或硝氮浓度增加都会使藻体生长加快，但当二者同时加富时对生长的促进作用没有表现出协同效应。