• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geochemistry: exploration, environment, analysis >A study of trace elements in plants of the Polar Urals and Chukotka in the search for metallophyte hyperaccumulators
【24h】

A study of trace elements in plants of the Polar Urals and Chukotka in the search for metallophyte hyperaccumulators

机译：在搜索金属植物超读数器中植物植物中植物微量元素的研究

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

The present study summarizes the results of investigations of the trace element distribution in soils and their uptake by plants of natural habitats on the ultramafic and acidic rocks of the Polar Urals and Chukotka in the Arctic Russia. Concentrations of Fe, Mn, Zn, Cu, Ni, Cr, and Co were determined by atomic absorption spectrometry in 194 plant species of 30 families and 157 soil samples. Two leaches were used for the soil - 1 M ammonium acetate (exchangeable) and 1 M HNO3 (acid soluble); a mixture of 1.5 M HNO3 and 3.7 M HCl was used for the plants. The levels of Fe, Cr and especially Ni in the soils on the ultramafic rocks exceeded those of soils on the acidic rocks. The mineral composition of plant species varies depending on the differences in chemical and mineralogical composition of the two soil-forming rock types. Taxon-specific features in the accumulation of potentially toxic elements in plants of these regions have been revealed for the first time. The data on the metal accumulation ability of plant species show that the species Thlaspi cochleariforme DC. and Alyssum obovatum (C.A. Mey) Turcz. (Brassicaceae) could be considered as Ni hyperaccumulators. These species could therefore have potential for Ni phytoextraction from contaminated soils.
机译：本研究总结了土壤中痕量元素分布的调查结果及其在极地乌拉尔斯紫外线和酸性岩石上的自然栖息地的植物在北极俄罗斯的酸性岩石中的摄影。通过194个植物物种为30个家族和157种土壤样品的原子吸收光谱法测定Fe，Mn，Zn，Cu，Ni，Cr和Co的浓度。两种浸出用于土壤 - 1M乙酸铵（可交换）和1M HNO3（酸溶解）;将1.5M HNO 3和3.7M HCl的混合物用于植物。紫外线岩石上的土壤中的Fe，Cr和特别是Ni的水平超过了酸性岩石上的土壤。植物物种的矿物成分因两种土壤成型岩石类型的化学和矿物学组成的差异而异。第一次揭示了这些地区植物中潜在有毒元素积累中的特异性特征。植物物种金属累积能力的数据表明，物种Thlaspi Cochlearifice DC。和alyssum obovatum（c.a. mey）turcz。 （Brassicaceae）可以被认为是Ni超累积者。因此，这些物种可以具有来自污染的土壤的Ni PhytoExtraction。

著录项

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