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以砖红壤、赤红壤、红壤、黄棕壤、滨海盐土、内陆盐土和苏打盐土为试材,用热敏电阻型温度传感器,测出不同土壤处理及其电导率与温度的回归统计数据。结果表明:土壤电导率与温度有很好的线性关系。含水量主要影响回归方程的截距,土壤容重可能主要与斜率有关。不同土壤之间电导温度变率的顺序为:滨海盐土>内陆盐土>苏打盐土>黄棕壤>砖红壤>红壤>赤红壤。这与电导率的变化一致,因而与土壤的可溶盐含量及土壤所带的电荷数量有关。最后提出了一个电导温度变率公式,以求0～30℃下的电导率。
The red soil, latosol, red soil, yellow brown soil, coastal saline soil, inland salt soil and soda ash soil were used as test materials, and thermistor type temperature sensors were used to measure the regression statistics of different soil treatments and their conductivity and temperature. The results show that there is a good linear relationship between soil electrical conductivity and temperature. Water content mainly affects the intercept of the regression equation, and soil bulk density may be mainly related to slope. The order of conductivity temperature variability among different soils is coastal saline soil> inland salt soil> sodic saline soil> yellow brown soil> brick red soil> red soil> red soil. This is consistent with changes in conductivity and therefore with the amount of soluble salt in the soil and the amount of charge that the soil carries. Finally, a conductivity temperature variability formula is proposed to find the conductivity at 0 ~ 30 ℃.