摘要：Treated wastewater irrigation (TWWI) is necessary under the background of a worldwide water crisis. Toinvestigate wetting patterns and distributions of water droplet penetration time (WDPT), soil water content(), soil organic matter (SOM) and salt content (S) after tap water irrigation (TWI) and TWWI, single-point-source trickle irrigation experiments were conducted on sandy and loam soils at three flow rates of 0.6, 1.0and 2.7 mL·min -1 . For sand, infiltration was generally regular, WDPT increased small with maximal value of1.4 s, and the ratio of wetting fronts (R w ) decreased to 1.1 with time. For loam soil, infiltration was not asregular as sand, R w decreased with time, but larger than 1.5, WDPT increased significantly after TWWI,with maximal increment of 34.2 s at 1.0 mL·min -1 , and the distributions of SOM and S were irregular especiallyat flow rates of 2.7 mL·min -1 . SOM was not the main cause of the increment of WDPT for both soil types.Values of and S were considered to have contributed to the increment of WDPT for saline-alkali loam soilafter TWI and TWWI. Particle content, especially sand content also affected WDPT. WDPT interacted withsoil properties during TWW and TWWI.
