There is a very strong link between the behavior of ground penetrating radar (GPR) wave propagation in zinc-contaminated soil and the dielectric properties of soil. This relationship can be of significant use in the practices of quick detecting the degree of pollution in zinc-contaminated soil. In this research, measurements were conducted on the zinc-contaminated soil samples with different soil index properties (i.e., zinc ion concentration, wet density and moisture content). The radar reflection wave data of the common midpoint and common-offset sounding mode were obtained by using the 600 MHz antenna, and the relative permittivity was measured using the vector network analyzer. The attribute analysis of radar reflection wave shows that the wave velocity is affected by wet density and moisture content, but independent of zinc ion concentration. Both the amplitude and the peak frequency decrease with the increase in zinc ion concentration, wet density and moisture content. For the soil dielectric properties, the metal ions can change the conductivity of solution in soil, affecting the imaginary part of relative permittivity, but with little effect on the real part. The positive correlations between the relative permittivity with density and moisture content are caused by the variation of three-phase composition of soil. Besides, the measured soil dielectric properties and the radar reflected wave attributes confirm each other, which can well explain the change rules of electromagnetic wave velocity, amplitude and central frequency. The presented results can increase understanding and confidence on GPR for quantitative monitoring and detecting of zinc-contaminated soil.

探地雷达（GPR）波在受锌污染的土壤中的传播行为与土壤的介电特性之间有着非常密切的联系。这种关系在快速检测锌污染土壤中污染程度的实践中可能具有重要意义。在这项研究中，对具有不同土壤指数特性（即锌离子浓度，湿密度和水分含量）的受锌污染的土壤样品进行了测量。通过使用600 MHz天线获得公共中点和公共偏移测深模式的雷达反射波数据，并使用矢量网络分析仪测量相对介电常数。雷达反射波的属性分析表明，波速受湿密度和水分含量的影响，而与锌离子浓度无关。幅度和峰值频率都随锌离子浓度，湿密度和水分含量的增加而降低。对于土壤的介电特性，金属离子可以改变溶液在土壤中的电导率，影响相对介电常数的虚部，但对实部的影响很小。相对介电常数与密度和水分含量之间的正相关关系是由土壤三相组成的变化引起的。此外，测得的土壤介电特性和雷达反射波属性相互证实，可以很好地解释电磁波速度，振幅和中心频率的变化规律。提出的结果可以提高人们对GPR定量监测和检测锌污染土壤的认识和信心。