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研究结果表明,在还原条件下赤铁矿被优先还原,转化为无定形铁和土壤溶液中的铁离子,在氧化风干条件下又可老化为针铁矿.这一结果可用来解释一些发生在土壤中的现象,如红壤旱地改水田后的“黄化”现象.
The results show that the hematite is preferentially reduced under reducing conditions and converted to iron ions in amorphous iron and soil solution, which can then be oxidized to goethite under oxidizing and air-drying conditions.This result can be used to explain some of the Phenomena in the soil, such as “yellowing” after paddy field red paddy fields are converted into paddy fields.