The study looked at how soil water and salt levels change in a drip irrigation shelterbelt in an oasis near the Tarim River. They found that the shape of the wetting front after irrigation was like a semi-ellipse, with salt accumulating at the edge. Sandy loam soil needed a ten-day irrigation period. Soil moisture deficit increased over time for sandy loam, while salinity decreased in the topsoil but increased deeper down. After five years, compacted soil slowed evaporation in silt clay, concentrating salt near the surface. Fine sandy soil had poor water retention, leading to even salt distribution. Sandy loam had slightly better water retention and fluctuating salt levels at different depths.