以室内入渗试验为基础,研究了低压毛管渗灌器在沙质土壤中的入渗性能和土壤水分运移规律,采用数理统计方法分析了加压水头、内芯直径和渗灌器长度3个主要因素对土壤水分运移规律的影响。结果表明,单一因素下低压毛管渗灌器入渗率与时间呈幂函数关系,累积入渗量与时间呈对数函数关系;加压水头对渗灌器入渗率和累积入渗量的影响最大,内芯直径次之,渗灌器长度最低。 Based on the indoor infiltration test, the infiltration performance of low-pressure capillary seepage device in sandy soil and soil moisture movement were studied. The mathematical model was used to analyze the effects of pressure head, core diameter and infiltrometer length 3 Influence of Main Factors on Soil Water Movement. The results showed that under a single factor, the infiltration rate of low-pressure capillary seepage device showed a power function relationship with time, and the cumulative infiltration capacity showed a logarithmic relationship with time. The influence of pressurized water head on infiltration rate and cumulative infiltration capacity The largest, followed by the core diameter, infiltration device the lowest length.