北京、南京地区土壤中若干元素的自然背景值
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THE NATURAL BACKGROUND VALUES OF SOME TRACE ELEMENTS IN THE IMPORTANT SOIL TYPES OF BEIJING AND NANJING AREAS
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    摘要:

    用原子吸收、中子活化、X射线荧光、极谱以及比色等方法,测定了北京、南京地区几种主要土壤中铜、铍、锌、镉、汞、钪、镧、铅、砷、硒、铬、钼、锰、钴和镍等元素的含量。得出了北京、南京地区土壤中各该元素的背景值。背景值用算术平均值及标准差来表示。讨论了土壤类型和成土母质类型对土壤中元素背景值的影响,结论是成土母质类型是影响这些元素背景值的重要因素。作者认为,即使在城市附近,获得这些元素在土壤中的背景值仍然是可能的。

    Abstract:

    The contents of Cu, Be, Zn, Cd, Hg, Sc, La, Pb, As, Se, Cr, Mo, Mn, Co, and Ni in the important soil types of Beijing and Nanjing areas were measured by physical and chemical methods. Data concerning the mean value and the standard deviation of these elements both in various soil types and in the different horizons of each soil profile are given in the tables of the Chinese text. Results of present inveatigation may be summarized as follows. Variations of the content of trace elements of a soil were largely dependent on their parent materials. Soils derived from different parent materials, even belonging to a same soil type, usually show a rather great divergency in background values of trace elements while similarities of the values of trace elements were still perceived in different soil types derived from the same parent material. Present investigation also revealed that soils derived from basic rocks, as a rule, possessed higher back-ground values of trace elements than those from the acidic rocks as shown in the following descending order:basalt. limestone>shale>granite, sandstone.

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中国科学院土壤背景值协作组.北京、南京地区土壤中若干元素的自然背景值[J].土壤学报,1979,16(4):319-328. The Group of Natural Background Values of Soil. THE NATURAL BACKGROUND VALUES OF SOME TRACE ELEMENTS IN THE IMPORTANT SOIL TYPES OF BEIJING AND NANJING AREAS[J]. Acta Pedologica Sinica,1979,16(4):319-328.

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  • 在线发布日期: 2013-02-25
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