Department of Soil Science and Plant Nutrition, University of Florence, Italy.
Environ Geochem Health. 1988 Jun;10(2):63-9. doi: 10.1007/BF01758593.
A systematic survey on the distribution of geochemically and texicologically relevant trace elements in the soils of Italy was carried out on 32 soil profiles, developed in different environmental and pedological conditions. The aim of this study was to collect basic information on the background levels of trace elements, their geochemical behaviour and the relationships between weathering and pedogenetic processes. The statistically processed analytical results led to the following conclusions: (i) Trace element distribution in the profiles studied is consistent with pedochemical behaviour and rock lithology. A comparison with the world soil means shows that there are no significant differences, except for those elements largely utilised in agriculture (Cu, Zn) or, because of pollution, (Pd, Cd), or natural accumulation (Ni, Cr); (ii) data processing by cluster analysis shows marked correlations between some elements, for example, Al-V, Ni-Cr, Mn-Co. Groups of geochemically homogeneous samples, which correspond to the great soil families characteristic of each pedological landscape, are also indicated; (iii) evidence of soil contamination is provided by the high levels of some elements, especially in the A horizon. Cu and Zn seem to be concentrated in the Ap horizon of cultivated soils, while Pd and Cd may be derived from the atmosphere.
对意大利 32 个土壤剖面进行了系统的地球化学和毒理学相关微量元素分布调查，这些剖面是在不同的环境和土壤条件下发育的。本研究的目的是收集有关微量元素背景水平、地球化学行为以及风化和土壤形成过程之间关系的基本信息。经统计处理的分析结果得出以下结论：(i)研究剖面中微量元素的分布与地球化学行为和岩石岩性一致。与世界土壤均值的比较表明，除了在农业中大量使用的元素（Cu、Zn）或因污染（Pd、Cd）或自然积累（Ni、Cr）外，没有显著差异；(ii) 聚类分析数据处理表明，某些元素之间存在明显的相关性，例如 Al-V、Ni-Cr、Mn-Co。还指出了与每种土壤景观特征相关的具有地球化学均一性的土壤样本组；(iii) 一些元素，尤其是在 A 层中的高水平，表明存在土壤污染。Cu 和 Zn 似乎集中在耕作土壤的 Ap 层中，而 Pd 和 Cd 可能来自大气。
