The aim of the work described here was to understand the pedogeochemical signature of five rare earth elements (REEs; Ce, Nd, La, Y, and Sc) in vineyard soils in Campo de Calatrava (a unique territory with calcareous, volcanic and metamorphic rocks). The mean contents in surface horizons of Ce, Nd, La, Y, and Sc were 65.7, 32.0, 35.5, 18.8, and 13.9 mg·kg^–1, respectively. In subsurface horizons the contents were Ce 62.8, Nd 31.1, La 35.7, Y 17.9, and Sc 14.4 mg·kg^–1. The results show that mean contents of REEs in the area under investigation are in the order Ce > Nd > La > Y > Sc. Ce has a very high range, with a value close to 150 mg·kg^–1. On the other hand, concentrations of Ce, Nd, Y, and Sc are higher in soils on volcanic material than in soils on nonvolcanic material, while only La values are lower in soils on volcanic rocks. The distributional maps of REEs in surface and subsurface horizons suggest that parent material and pedogenesis such as argillization and calcium carbonate accumulation are more important factors than the use of REE-based fertilizers, except in certain exceptional cases (consistent with a possible specific human impact after continuous fertilization).

中文翻译：

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探索不同岩性的葡萄园土壤中五种稀土元素的存在：西班牙坎波德卡拉特拉瓦

此处描述的工作目的是了解坎波德卡拉特拉瓦（具有钙质，火山岩和变质岩的独特领土）的葡萄园土壤中的五种稀土元素（REE； Ce，Nd，La，Y和Sc）的教育地球化学特征。 ）。Ce，Nd，La，Y和Sc的表层平均含量分别为65.7、32.0、35.5、18.8和13.9 mg·kg ^–1。在地下层中，其含量为Ce 62.8，Nd 31.1，La 35.7，Y 17.9和Sc 14.4 mg·kg ^–1。结果表明，所调查区域的稀土元素平均含量依次为Ce> Nd> La> Y> Sc。Ce具有很高的范围，其值接近150 mg·kg ^–1。另一方面，火山岩土壤中Ce，Nd，Y和Sc的浓度高于非火山岩土壤中的Ce，Nd，Y和Sc的浓度，而火山岩土壤中的La值较低。稀土元素在地表和地下水平的分布图表明，除了某些特殊情况外，母体物质和成岩作用（如藻泥化和碳酸钙积累）是比使用基于稀土元素的肥料更为重要的因素（与人类可能受到的特定影响相一致）。连续受精）。