[Object] Soil texture improvemtne by sand addition is tranditional way and one of widely used strategy in soil amendment, and always being pay attention to in the past years in Northwest arid region. However little is knowen about the effects of sand addition on soil water movement and soil salt distribution. In present research, simulating experiments were conducted to study the effects of sand mixed and sand mulch on soil water infiltration, evaporation after infiltration, capillary water movement, proces...