土壤可变负电荷量、阴离子吸附量和电荷零点随海拔升高而趋于增加。

The variable charge amount, the anion adsorption amount and the PZC values of the soils tend to increase with the increase in altitude.

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在所研究的样本中，氧化铁和氧化铝是带可变正电荷的亚表面，而氧化硅是带可变负电荷的亚表面。

In the studied samples, iron and aluminium oxide were pH-dependent positive charge surface, silica was pH-dependent negative charge surface.

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在所研究的样本中，氧化铁和氧化铝是带可变正电荷的亚表面，而氧化硅是带可变负电荷的亚表面。

In the studied samples, iron and aluminium oxide were pH-dependent positive charge surface, silica was pH-dependent negative charge surface.

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