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根据自行设计的ＯＴＣ－１型开顶式气室及连续３年试验资料，在评述该套设备性能的基础上，分析了ＣＯ２浓度倍增对４种作物生长发育和产量的影响。结果表明：ＣＯ２浓度倍增，作物发育进程加快，株高增加，经济产量和生物产量增长明显，且Ｃ３作物的增长幅度大于Ｃ４作物；冬小麦、棉花品质呈良性变化，玉米品质可能有所下降，大豆品质变化不明显。上述初步结果尚待进一步研究
Based on the self-designed OTC-1 open-top gas chamber and the continuous three-year experimental data, the effects of CO2 concentration doubling on the growth and yield of four crops were analyzed based on the performance of the equipment. The results showed that CO2 concentration doubled, crop development accelerated, plant height increased, economic yield and biomass increased significantly, and C3 crop increased more than C4 crop. The quality of winter wheat and cotton showed a positive change, the quality of maize might be decreased, Quality change is not obvious. The above preliminary results have yet to be further studied