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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Estimation of dielectric properties of clay loam and silty soil with different salinity levels over low frequency range
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Estimation of dielectric properties of clay loam and silty soil with different salinity levels over low frequency range

机译：低频范围不同盐度水平的粘土壤土和粉质土壤介电性能的估计

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摘要

The dielectric properties of clay loam and silty soil moistened with various proportions of distilled water and saline solutions over the frequency range from 20 Hz to 2 MHz were estimated. It was observed that the dielectric constant epsilon' and dielectric loss epsilon '' increased with increase in volumetric moisture content in the soils. Frequency-dependent dielectric constant epsilon' and dielectric loss epsilon '' were found to decrease rapidly with increase in frequency. For moist soils, the dielectric loss increased more rapidly with increase in salinity compared to the corresponding dielectric constant. The complex impedance Z* (= Z'-JZ '') was also calculated from the measured values of epsilon' and epsilon '' for the soils. The complex impedance plots (Z '' against Z') for clay loamy and silty soils with moisture content of distilled water and saline water solutions revealed that bulk resistance of the soil decreased with increase in salinity in the wet soil, indicating an increase in conductivity of the soil.
机译：估计了在20 Hz至2 MHz频率范围内，用不同比例的蒸馏水和盐溶液湿润的粘壤土和粉土的介电特性。观察到，介电常数ε’和介电损耗ε’随着土壤中体积含水量的增加而增加。频率相关的介电常数ε’和介电损耗ε’随着频率的增加而迅速降低。对于潮湿土壤，与相应的介电常数相比，随着盐度的增加，介电损耗增加得更快。复阻抗Z*（=Z'-JZ''）也由土壤的ε′和ε′的测量值计算得出。含蒸馏水和盐水溶液的粘土壤土和粉土的复阻抗图（Z''对Z'）表明，土壤的体积阻力随着湿土中盐度的增加而降低，表明土壤的电导率增加。

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