The present paper deals firstly with the indexes of activation of iron oxides in soil on the basis of the data from previous paper and reference literatures.It is considered that the change of activity of iron oxides in soil.may be summarized as activation and aging.Though the change is not a reversible reaction,the aged iron oxides can be activated by the ac lion of organic matter and atmospheric factor.It is also o}nsidered that mineralogical patterns can not reflect quantitatively the change of activity of iron oxides;however,it can be estimated quantitatively to a certain degree by the content of amorphous iron oxides.
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陈家坊,何群,邵宗臣.土壤中氧化铁的活化过程的探讨[J].土壤学报,1983,20(4):387-393. Chen Jiafang, He Qun Shao, Zongchen. STUDY ON THE ACTIVATION PROCESS OF IRON OXIDES IN SOIL[J]. Acta Pedologica Sinica,1983,20(4):387-393.