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首页> 外文期刊>Environmental Science & Technology >Evaluation of the Boron Tolerant Grass, Puccinellia distorts, as an Initial Vegetative Cover for the Phytorestoration of a Boron-Contaminated Mining Site in Southern California
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Evaluation of the Boron Tolerant Grass, Puccinellia distorts, as an Initial Vegetative Cover for the Phytorestoration of a Boron-Contaminated Mining Site in Southern California

机译：耐硼草的评价，Puccinellia变形，作为南加州受硼污染的采矿场的植皮的初始植物覆盖物

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摘要

Land damaged by boron (B) mining should be restored to its natural state with a zero net impact on biodiversity. In an earner study (Environ. Sci. Technol. 2010,44,7089-7095), we characterized a Turkish ecotype of the grass, Puccinellia distans, which exhibited extreme tolerance to B. Here we evaluated the use of a US ecotype of P. distans as an initial vegetative cover for the phytorestoration of a B mine in southern California. Hydroponic studies revealed that this P. distans ecotype tolerated B concentrations >100 mg B/L and could be germinated and grown in B-contaminated soils taken from the sites to be restored. P. distans grew well in moderately B-contaminated soil (~88 mg B/L saturated extract) amended with added organic matter (peat moss); other soil treatments such as gypsum addition or pH correction were not needed. P. distans also grew in severely B-contaminated soil (~1506 mg B/L) provided that toxic levels of soil B were diluted by the addition of sand and/or organic matter. Our results provide evidence in support of tile concept of using the US ecotype of P. distans as an initial vegetative cover for the phytorestoration of B-contaminated soil.
机译：受硼（B）开采破坏的土地应恢复到自然状态，对生物多样性的净影响为零。在一项赚钱者研究中（Environ。Sci。Technol。2010,44,7089-7095），我们对土耳其生态型草Puccinellia distans进行了表征，该草对B具有极强的耐受性。在这里，我们评估了美国生态型P对草的使用。作为南部加利福尼亚州B矿的植保植物的最初植物覆盖物。水培研究表明，这种P. distans生态型可耐受的B浓度> 100 mg B / L，并且可以在从要恢复的地点被B污染的土壤中发芽和生长。在中等B污染的土壤中（约88 mg B / L饱和提取物），用添加的有机物（豌豆藓）进行了改良，P。distans生长良好。不需要其他土壤处理，例如添加石膏或校正pH。如果通过添加沙子和/或有机物来稀释土壤B的毒性水平，那么在受到严重B污染的土壤（〜1506 mg B / L）中也会生长P. distans。我们的研究结果提供了证据，支持使用美国生态型的P. distans作为植物被B污染土壤的植保性的初始植被覆盖的概念。

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  • 来源
    《Environmental Science & Technology》 |2011年第20期|p.8922-8927|共6页
  • 作者

    Amanda R. Stiles; Chunguang Liu; Yuriko Kayama; Josephine Wong; Harvey Doner; Roger Funston; Norman Terry;

  • 作者单位

    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, United States;

    Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China;

    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, United States;

    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, United States;

    Department of Environmental Science, Policy and Management, University of California, Berkeley, California 94720, United States;

    Rio Tinto Minerals, Tehachapi, California 93516, United States;

    Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, United States;

  • 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);
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