BACKGROUND CONCENTRATIONS OF ELEMENTS IN SOILS OF CHINA
BACKGROUND CONCENTRATIONS OF ELEMENTS IN SOILS OF CHINA
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DOI：
10.1007/bf00282934
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发表时间：
1991-08-01
影响因子：
2.9
通讯作者：
ADRIANO, DC
中科院分区：
文献类型：
--
作者：
CHEN, JS;WEI, FS;ADRIANO, DC
计算了中国大陆4,095个地点土壤样品中62种元素、pH值、有机质和粒度的平均浓度。 中国大陆与毗邻的美国、西藏与阿拉斯加的地球化学数据的组成表明，所测定的大多数元素具有密切的对应关系。 这些地球化学数据可以揭示土壤中元素丰度的区域变化的证据。 总的来说，各土类样品中重金属含量的顺序为：石壤>寒地土>潮土>旱成土>淋溶土>淋溶土>氧化土。 这种趋势显然是气候对土壤发生的影响，Oxisol（高降雨量地区，高度风化和高度淋溶的土壤）产生最低的元素平均值。 然而，最高的平均值大多数微量元素的石壤是由于其相对较高的本地元素含量以及化学性质的基岩从土壤形成。
Mean concentrations of 62 elements, pH, organic matter and grain size have been computed for soil samples from 4,095 locations throughout mainland China. The compositions of geochemical data between mainland China and the conterminous United States and between Tibet and Alaska show a close correspondence for most elements determined. These geochemical data may reveal evidence of regional variations in the abundance of elements in soils. In general, the sequence for metal content in samples of soil orders was: Lithosol > Cold-highland soils > Inceptisol > Aridisol = Mollisol > Ultisol > Alfisol > Oxisol. This trend was apparently a result of climatic influence on soil genesis, with the Oxisols (high rainfall areas with highly weathered and highly leached soils) yielding the lowest elemental mean values. However, the highest mean values of most trace elements in the Lithosols were a result of its relatively high indigenous elemental contents as well as chemical properties of the bedrock from which the soils were formed.