垂向一维均质土壤水分运动在蒸发条件下的运用

Application of One-dimenslonal Vertical Flow in Unsaturated Homogeneous Soil Under The Conditions of Evaporation

本文以新疆乌拉泊尔均衡场，新疆化肥厂试验站及昌吉地下水综合试验场资料求得的非饱和土壤水分特征曲线、水力传导度和土壤扩散率为依据，建立了适合乌鲁本齐地区非饱和土壤水分运动在蒸发条件下运用的数学模型．并用实测资料进行了验证．数值模拟结果与常观实测值有着良好的一致性，可应用于今后试验场在蒸发条件下土壤水动态的预报．

In this paper mathematical model for unsaturated soil water movement under evaporation conditions inUrumqi district has been established on the basis of actual son-water characteristic carve,kydraulic conductivity and soil diffusivity water balance stations in Wulabai and the station rear bortilizer works as well as Chanjicomprehensive groundwater experiment station in Xinjiang. Tie model has been tested and verified by field data. The results obtained by numerical madal generally are in good agrement with measured field data. This shows that the model can be used to pridict soil-water moisture under evaporation conditions.