CO_2浓度增加对作物影响的实验研究进展

The Advancement of Experiment and Study on Impacts of CO_2 Enhancement on Crop

简要综述了近10年来国内外有关CO_2增加对作物生长影响的研究方法、实验装置和实验结果。CO_2增加促进了作物光合、抑制蒸腾、提高了水分利用率,有利于作物生长发育、干物质积累和产量形成。就总体而言,C_3比C_4作物对CO_2增加的反应更为敏感。

In this paper , studies on effects of CO2 concentration increasing on crop growth ,as well as measuring installation , experimental methods and results in the recent 10 years are summarized. CO2 enriching enhances crop photosynthesis, reduces transpiration , increases water use efficiency , accelerates growth and development of crop , and enhances dry matter and yield . In general , responses of C3 crops on CO2 enhancement are more sensitive than C4 crops.