This paper is accomplished on the basis of studies of Key Scientific and Technological Project, the forecasting and evaluation of soil salinization and groundwater environment in Inner Mogolia Luanjing Irrigation Area. As irrigation can often cause soil sanilization with a mass of farmland dilapidated and serve environmental problems, this paper studies the transforming of four forms of waters (irrigation water, surface water, soil water and groundwater), laws of water and salinity movement, the effect of w...