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引用本文:廖启林 金 洋 吴新民 毕葵森 范迪富 华 明. 南京地区土壤元素的人为活动环境富集系数研究[J]. 中国地质, 2005, 32(1): 141-147.
LIAO Qi-lin, JIN Yang, Wu Xin-min, Bi Kui-sen, Fan Di-fu, Hua Ming. Artificial environmental concentration coefficients of elements in soils in the Nanjing area[J]. Geology in China, 2005, 32(1): 141-147(in Chinese with English abstract).
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南京地区土壤元素的人为活动环境富集系数研究
廖启林 金 洋 吴新民 毕葵森 范迪富 华 明
江苏省地质调查研究院,江苏 南京 210018
摘要:
提要:南京周边地区开展多目标地球化学调查获取了“双层土壤”各元素的含量,表层土壤的元素含量与其深层土壤元素含量之比值即称之为土壤中该元素的人为活动环境富集系数(简称环境富集系数),笔者介绍了有关环境富集系数的计算方法。通过对比研究区各元素环境富集系数分布特征,发现本区表层土壤中Si、Ti、La、Ce、Y、Sc、Zr、Th、U、W等元素与其自然土壤环境的含量相近,S、N、P、Hg、Pb、Cl、Br、Se等元素及有机碳呈现了显著的人为环境富集,I、Fe、Mg、Mn、Ca、Al、K等元素出现了地表贫化。最后探讨了深入开展土壤中元素环境富集系数研究的相关问题,并提出了建议。
关键词:  人为活动环境富集系数  元素  土壤  南京地区
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Artificial environmental concentration coefficients of elements in soils in the Nanjing area
LIAO Qi-lin, JIN Yang, Wu Xin-min, Bi Kui-sen, Fan Di-fu, Hua Ming
Jiangsu Institute of Geological Survey, Nanjing 210018, Jiangsu, China
Abstract:
Abstract:Data of contents of relevant elements from“double-layer”soils have been obtained during multi-target geochemical survey in Nanjing and its surrounding areas. The ratio of the content of an element in topsoils (depth 10-20 cm) to its content in deep soils (depth 150-200 cm) is called artificial environmental concentration coefficient in soils. This paper mainly introduces the calculating methods of the artificial environmental concentration coefficients. According to the distribution characteristics of the concentration coefficients of various elements in the study area, it is found that in topsoils of the area the contents of elements such as Si, Ti, La, Ce, Y, Sc, Zr, Th , U and W are close to their contents in the natural soil environment and elements such as S, N, P, Hg, Pb, Cl, Br and Se, as well as Corg show pronounced artificial environmental concentrations, while elements such as I, Fe, Mg, Mn, Ca, Al and K are depleted in the topsoils. Finally, problems relating to an intensive study of the artificial environmental concentration coefficients of elements in topsoils are discussed and some helpful suggestions are put forward.
Key words:  artificial environmental concentration coefficient  element  topsoil  Nanjing area