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根据１９９４～１９９５年在大型人工气候室内取得的试验资料，分析了大气ＣＯ２浓度倍增条件下，春小麦冠层温度、蒸发蒸腾和根层土壤剖面水分动态的变化状况。结果表明，大气ＣＯ２浓度增加１倍，春小麦冠层温度明显升高，且高水分条件升高的值比低水分条件下大０．７℃左右；蒸发蒸腾减少的幅度在不同土壤水分处理间也不相同，高水分处理的蒸发蒸腾量减少９．８８％，低水分处理的减小８．５０％，根层土壤含剖面水分消耗减小，高ＣＯ２浓度处理的根层土壤含水率高于低ＣＯ２浓度处理的，特别是在底部根系密度减小，其水分消耗明显减少。
Based on the experimental data obtained in a large artificial climate chamber from 1994 to 1995, the changes of canopy temperature, evapotranspiration and water dynamics in the root soil profile under the doubled atmospheric CO2 concentration were analyzed. The results showed that the atmospheric CO 2 concentration doubled, the canopy temperature of spring wheat increased significantly, and the value of high moisture was higher than that of low moisture by 0.7 ℃. The decrease of evapotranspiration was also found in different soil moisture treatments The results showed that the evapotranspiration of high-moisture treatment decreased by 9.88% and that of low-moisture treatment decreased by 8.50%, and the water consumption of root-section soil profile decreased. The water content of root-layer soil with high CO2 concentration was higher than that of low CO2 concentration treatment, especially in the bottom of the root density decreases, the water consumption decreased significantly.