植物的光合作用也存在对高CO2浓度的适应，不会一直维持较高的光合水平，而且植物的呼吸作用也可能会增加；

Plant photosynthesis can acclimate to the elevated CO2 and not keep a higher rate throughout the whole season. The plant respiration may be increased by the elevated CO2.

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植物的光合作用也存在对高CO2浓度的适应，不会一直维持较高的光合水平，而且植物的呼吸作用也可能会增加；

Plant photosynthesis can acclimate to the elevated CO2 and not keep a higher rate throughout the whole season. The plant respiration may be increased by the elevated CO2.

youdao