Soil magnetism of the plough layer is in relatively good correlation with organic carbon and P but shows a rather poor correlation with N and K.
耕作层的土壤磁化率与有机碳、磷含量具有较好的相关性，而与氮、钾含量相关性较差。
Magnetism and hydrocarbon content of shallow soil show interrelated characteristics.
层土壤的磁性与烃含量之间呈明显的相关特征。
Remanent magnetism of soil layer is taken as a reference frame for locating hydrocarbon seepage zone.
本文利用土壤剩余磁性作为确定烃类渗漏带的参考系。
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