In recent years, ecologists have experienced an increased awareness of the importance of plant-environment interactions. Studies have demonstrated that spatial ecosystem heterogeneity and availability of resources influence plant growth. Understanding the ecological response characteristics of plants and environmental laws influencing arid land vegetation in different water-salt environments should be quite valuable to scientists. To better understand the ecological characteristics of plants and factors that potentially control them such as water availability and salinity in arid regions, we conducted a study in Phragmites australis in dry habitats of the Yutian Oasis along the Kenya River, in the southern marginal zones of the Tarim Basin, Xinjiang, China. The redundancy analysis can effectively reveal relationships between ecological characteristics of plants and water-salt indicators. The characteristics of Phragmites australis deserve more research, especially research related to the microscopic physiolog