...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental toxicology and chemistry >THE FATE OF LEAD AT ABANDONED AND ACTIVE SHOOTING RANGES IN A BOREAL PINE FOREST
【24h】

THE FATE OF LEAD AT ABANDONED AND ACTIVE SHOOTING RANGES IN A BOREAL PINE FOREST

机译：松树林被废弃和主动射程的铅的命运

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Changes in leaching, availability, bioaccumulation, and vertical distribution of lead (Pb) in soil 20 years after the cessation of shooting activity were studied by comparing three pine forest sites in southern Finland: an active shooting range, an abandoned shooting range, and a noncontaminated control site. At both shooting ranges, shooting activity had lasted for 20 years, but it had taken place 20 years earlier at the abandoned range. Up to 4 kg m~(-2) of Pb pellets had accumulated in the soil at both shooting ranges, and extremely high Pb concentrations, reaching 50,000 mg kg~(-1), were detected in the organic soil layer. Elevated Pb concentrations were also found in leachate waters and in the biota. Concentrations of Pb in the top organic soil layer and in some of the biota were lower at the abandoned shooting range, which can be taken as a sign of starting recovery of the forest ecosystem. However, the concentration of water-extractable Pb had not decreased in the topsoil, possibly indicating the release of Pb from decaying litter. Deeper in the organic soil layer, weathering of Pb pellets enhanced Pb availability and leaching, indicating an increased risk of groundwater contamination over time at shooting sites located above aquifers.
机译：通过比较芬兰南部的三个松树林地，研究了射击活动停止后20年土壤中铅（Pb）的淋溶，有效性，生物富集和垂直分布的变化：活跃的射击场，废弃的射击场和无污染的控制点。在这两个射击场上，射击活动都持续了20年，但在20年前就在废弃的射击场上进行了。在两个射程范围内，土壤中均累积了高达4 kg m〜（-2）的Pb颗粒，在有机土壤层中检测到的Pb浓度极高，达到50,000 mg kg〜（-1）。在渗滤液水和生物区系中也发现了较高的Pb浓度。在废弃的射击范围内，有机土壤表层和某些生物区系中的铅含量较低，这可以视为开始恢复森林生态系统的迹象。然而，表土中水可萃取铅的浓度并未降低，这可能表明铅从腐烂的枯枝落叶中释放出来。在有机土壤层的更深处，铅颗粒的风化增强了铅的有效性和淋溶性，表明随着时间的推移，位于含水层上方的射水地点的地下水污染风险增加。

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2012年第12期|2771-2779|共9页
  • 作者

    Salla Selonen; Mira Liiri; Rauni Stroemmer; Heikki Setala;

  • 作者单位

    Department of Environmental Sciences, University of Helsinki, Lahti, Finland;

    Department of Environmental Sciences, University of Helsinki, Lahti, Finland;

    Department of Environmental Sciences, University of Helsinki, Lahti, Finland;

    Department of Environmental Sciences, University of Helsinki, Lahti, Finland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bioaccumulation; fate and transport; pb; recovery; soil;

    机译：生物蓄积命运与运输;铅复苏;泥;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号