成熟叶片在四个季节中表现为稳定的景天酸代谢(CAM)，且光期有较长时间的CO_2吸收，几乎无CO_2向外释放，有显著的昼夜酸度波动。
The mature leaves perform stable Crassulacean acid Metabolism (CAM), which uptake and rarely release CO2 for most times during the light period, and express marked diurnal acid fluctuation.
同时，芦荟是CAM(景天酸代谢)途径植物，蒸腾极小，盐分随蒸腾流进入地上部的机会小。
Also, as a CAM (Crassulacean acid metabolism) plant, the transpiration rate in Aloe seedlings was very low and the rate of salt accumulation in the shoots was also slow.
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