| The moving rule of salt and water in cultivated land and saline wasteland during crops growth period in Hetao Irrigation District, Inner Mongolia has been studied. Based on the field measured data, the movement of salt and soil moisture in cultivaed land and saline westeland by using the HYDRUS-2D model has been simulated and analyzed. The results showed that function by strong evaporation, the salt will be accumulated in the soil surface, in the soil layers of 20, 40 cm and 70 cm, the salt content will be increased 67.23%, 62.37% and 37.2% respectively. Through examined, the simulation of soil moisture and salt content moving by the HYDRUS-2D model in horizontal and vertical direction indicated a high precision, reflected the rule of salt accumulated and soil moisture moving. |