中文摘要：

采用室内试验的方法，通过使用时域反射仪（TDR100）测定不同含盐量及不同含水率土样的电导值，与采用电导率仪测定的土壤溶液电导值及烘干法测得的含水率值进行比较。结果表明，它们之间存在显著的线性关系。并根据测定结果得到标定公式，提出使用TDR测定高舍盐量土壤含盐量的方法。试验结果可为河套灌区野外测定土壤含盐量提供参考。

英文摘要：

Experiments were carried out by using the time domain reflectometry（TDR100） to measure the bulk electrical conductivity of soil under different water contents and salinities. The electrical conductivity was compared with the measured result of Conductivity Meter and Drying method, which could find out the relationship among the factors. The results showed a significant linear relationship between the bulk electricity and the soil extract electrical conductivity. In accordance with the determination results, calibration formulas was taken out and the method of measuring salinity for high saline soil by TDR was proposed. The method can be used for soil salinity measurement in field experiment of Hetao irrigation district.