极地研究

极地研究 ›› 2015, Vol. 27 ›› Issue (2): 150-158.DOI: 10.13679/j.jdyj.2015.2.150

• 研究论文 • 上一篇    下一篇

菲尔德斯半岛植物和表层土壤中部分金属元素的富集特征

李文君，那广水，贺广凯，王立军，马新东   

  1. 国家海洋局近岸海域生态环境重点实验室，国家海洋环境监测中心，辽宁 大连 116023
  • 收稿日期:2013-10-22 修回日期:2014-05-07 出版日期:2015-06-30 发布日期:2015-06-30
  • 通讯作者: 那广水
  • 基金资助:

    国家海洋局极地科学重点实验室开放基金;南北极环境综合考察与评估专项

ENRICHMENT CHARACTERISTICS OF METALS IN PLANTS AND SURFACE SOILS IN FILDES PENINSULA, ANTARCTICA

Li Wenjun, Na Gangshui, He Guangkai, Wang Lijun, Ma Xindong   

  1. Key Laboratory for Ecological Environment in Coastal Areas，SOA，National Marine Environmental Monitoring Center, Dalian 116023, China
  • Received:2013-10-22 Revised:2014-05-07 Online:2015-06-30 Published:2015-06-30

PDF (PC)

1205

被引次数

5

摘要： 利用湿法消解-电感耦合等离子体质谱仪对南极菲尔德斯半岛地区植物和表层土壤中的化学元素进行了分析，讨论了其元素含量、相关性、富集系数及污染指数等化学特征。研究发现，南极菲尔德斯半岛土壤和植物中的Ni、Li、As、Cs变异系数波动较大，且土壤中元素的区域性变化小于植物。植物中的Al、Fe、Mn元素丰度主要依赖于土壤元素丰度的高背景值，而对Ca、K、Cr、Ba元素具有较强的选择吸收能力，对重金属元素Cr、Cu、Zn、Cd、Pb富集能力很强。进行重金属污染评价表明，南极菲尔德斯半岛地区受到不同程度的污染，Cu元素存在普遍污染，Cd和As均达到了轻度污染，Cd元素的潜在生态风险最大。

关键词: 南极, 菲尔德斯半岛, 植物, 土壤, 富集

Abstract: The chemical composition of plants and surface soils from Fildes Peninsula, Antarctica, was determined by wet digestion and inductively coupled plasma mass spectrometry (ICP-MS). Chemical features, such as element content, enrichment coefficient, bivariate correlation and pollution index, are discussed. Variance coefficients of Ni, Li, As and Cs were high in both soils and plants, but regional variation of elements in soils was lower than in plants. In plants, the concentrations of Fe, Al and Mn were affected primarily by high background levels in soils, whereas Ca, K and Cu were selectively absorbed; concentrations of Cr, Cu, Zn, Cd and Pb were all highly enriched. These results demonstrate the Fildes Peninsula has been polluted, with Cu widespread, Cd and As occurring at relatively low levels, and with Cd posing the greatest potential ecological risk.

Key words: Antarctica, Fildes Peninsula, plant, soil, enrichment, heavy metals, pollution