【摘要】 为深入了解湿地植物的光合生理特性，采用指数模型、直角双曲线模型、非直角双曲线模型以及直角双曲线修正模型对芦苇、水烛、互花米草和短叶茳芏4种湿地植物的光响应曲线进行拟合。结果表明：4种模型中，非直角双曲线模型的拟合精度最高，而指数模型在最大净光合速率和光饱和点方面的拟合效果最为突出，通过结合使用这两种模型能达到更好的拟合效果。在4种湿地植物中，互花米草的最大净光合速率和光饱和点最高，其耐强光能力最强，光合潜能最大，而芦苇的耐强光能力最弱，光合潜能最小。更多还原

【Abstract】 To gain a deeper understanding of the photosynthetic physiological characteristics of wetland plants, four light response models—the exponential model, rectangular hyperbola model, non-rectangular hyperbola model, and modified rectangular hyperbola model—were applied to fit the light response curves of four wetland plant species: Phragmites australis,Typha angustifolia,Spartina alterniflora,and Cyperus malaccensis.The results indicated that, among the four models, the non-rectangular hyperbola model achieved the highest fitting accuracy, while the exponential model performed best in terms of maximum net photosynthetic rate(P_nmax) and light saturation point（LSP）.A combination of these two models produced a better fitting performance.Among the four wetland plants, Spartina alterniflora exhibited the highest P_nmax and LSP,demonstrating the strongest tolerance to intense light and the greatest photosynthetic potential, while Phragmites australis showed the weakest tolerance to intense light and the lowest photosynthetic potential.更多还原