研究了光强的衰减与鱼腥藻7120细胞浓度和光程的关系，并通过回归分析，得出了光强基于细胞密度和光路长度衰减的关联式，为预测培养过程中的光强变化和调控提供了依据. 同时，在15 L气升式反应器中，研究了恒定光强和渐变光强下藻细胞的生长情况，探讨了光强变化对藻细胞生长的影响，并对培养过程中细胞倍增时间作了比较，进一步说明了光强在藻细胞培养中的重要作用. The relationship between the attenuation of light intensity and the concentration and optical path of Anabaena 7120 cells was studied. Through regression analysis, the correlation of light intensities based on cell density and optical path length attenuation was obtained. In order to predict the change of light intensity and regulation during culture In the 15 L airlift reactor, the growth of algal cells under constant light intensity and gradual light intensity was studied, the effect of light intensity on the growth of algal cells was discussed, and the effects of light intensity on the growth of algae cells Doubling times were compared, further illustrating the important role of light intensity in algal cell culture.