Анотация: Based on the measured data in June, 2010, the redundancy analysis (RDA) were used to analyze the variations of eco-physiological responses of Phragmites australis, identify the key environmental factors and their patterns influencing the variation of the growth of Phragmites australis in Momoge wetland, China. The results showed that various environmental factors led to great changes in eco-physiological responses of Phragmites australis