The features and formation of iron nodules were studied in Ustic Vertisols in Yuanmou Basin based on soil-landscape analysis.
在对元谋盆地区域土壤—景观分析基础上,研究了干润变性土中铁质结核的特征和形成。
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This paper deals with a preliminary map of Vertisols and Vertic soils in China, compiled on the basis of different soil survey reports and publications.