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水稻土离铁作用明显,并以耕层最为强烈.耕层中的晶质铁和非游离铁被活化、淋溶,使耕层的全铁、游离铁、晶质铁及非游离铁量均随发育度的提高而渐减.耕层下淋的活性铁在心土层氧化淀积,导致心土层的全铁.游离铁和晶质铁量随发育度的提高而渐增.氧化铁的晶胶率和晶化度在剖面中有显著的分异,其变化趋势可确切地反映出不同水型下的成土特点。
Paddy soil had obvious role in removing iron from the soil, and the plow layer was the most intense. Both the crystalline iron and the non-free iron in the plow layer were activated and leached so that the contents of total iron, free iron, crystalline iron and non- With the improvement of development degree, the active iron in the plow layer is oxidized and deposited in the soil layer, resulting in the total iron content in the heart-soil layer.The free iron and the crystalline iron content increase with the development of iron oxide Crystallization rate and crystallinity in the profile of significant differences, the trend can accurately reflect the characteristics of different soil water into the soil.