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本文系统研究了土壤的某些主要理化性质对铝电极电位的影响。结果表明，土壤水分、土壤松紧度、土壤盐分及土壤ｐＨ对铝电极电位都有明显影响。在土壤饱和水后和饱和水前的一定含水量范围内，电位随含水量的增大变化不明显，但在土壤水饱和点附近的一定含水量范围内，则出现一个很大的电位突降。在同一含水量情况下，电位与土壤容重呈明显的线性反相关。土壤盐分浓度的增高能导致电位的负偏，同时在不同土壤中，盐分的作用也各不相同。可变电荷土壤中盐分的加入对电位的影响比较明显。从土壤ｐＨ的影响可以区分出三个不同的影响范围：酸性区、偏酸和中性区、碱性区。在酸性区和碱性区，铝电极电位随ｐＨ升高而变负，两者呈显著的线性关系；在偏酸和中性区，电位呈现一个平台，ｐＨ的变化不能明显改变铝的电极电位，同时，不同土壤出现电位平台的ｐＨ范围也各不相同。
This paper systematically studied the influence of some major physical and chemical properties of soil on the potential of aluminum electrode. The results showed that soil moisture, soil tightness, soil salinity and soil pH had a significant effect on the aluminum electrode potential. In the range of water content before saturated water and saturated water, the potential did not change obviously with the increase of water content, but there was a great potential dip in the range of certain water content near the saturation point of soil water . Under the same water content, potential and soil bulk density showed a significant linear inverse correlation. The increase of soil salt concentration can lead to the negative bias of potential, and the salt action also varies in different soils. The effect of salinity in variable charge soil on potential is obvious. From the impact of soil pH can distinguish three different areas of influence: acid zone, partial acid and neutral zone, alkaline zone. In acidic and alkaline zones, the potential of aluminum electrode becomes negative with the increase of pH, showing a significant linear relationship. In the partial acid and neutral zone, the potential presents a platform, and the change of pH does not change the electrode potential of aluminum significantly At the same time, the pH range of different soil potential platform varies.