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首页> 外文期刊>Environmental Pollution >Effects of polycyclic aromatic hydrocarbons on germination and subsequent growth of grasses and legumes in freshly contaminated soil and soil with aged PAHs residues
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Effects of polycyclic aromatic hydrocarbons on germination and subsequent growth of grasses and legumes in freshly contaminated soil and soil with aged PAHs residues

机译：多环芳烃对新鲜污染土壤和残留PAHs残留土壤中草类和豆类植物发芽及随后生长的影响

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The relevance of germination trials for screening plants that may have potential for use in the phytoremediation of PAH contaminated land was evaluated. The germination and subsequent growth of 7 grass and legume species were evaluated in soil spiked with a pure PAH mixture or coal tar and soil from a former coking plant heavily contaminated with aged PAHs. None of these treatments adversely affected germination of the plants. However, apart from Lolium perenne all species exhibited reduced growth in the coking plant soil after 12 weeks growth when compared to the untreated soil. In the coal tar spiked soil 4 out of the 7 species showed reduced growth, as did 3 out of the 7 in the soil spiked with a mixture of 7 PAHs. Therefore, germination studies alone would not predict the success of subsequent growth of the species tested in the ranges of soil PAH levels studied. (c) 2005 Elsevier Ltd. All rights reserved.
机译：评估了发芽试验与筛选可能用于PAH污染土地的植物修复的植物的相关性。在掺入纯PAH混合物或煤焦油的土壤中以及来自被严重老化的PAHs污染的原炼焦厂的土壤中，评估了7种草和豆类物种的发芽及随后的生长。这些处理都没有不利地影响植物的发芽。但是，除黑麦草外，与未经处理的土壤相比，所有物种在12周生长后的焦化植物土壤中均显示出减少的生长。在掺加煤焦油的7种土壤中，有4种土壤生长减慢，掺入7种PAHs的土壤中7种土壤中有3种土壤生长缓慢。因此，仅发芽研究不能预测在所研究的土壤PAH水平范围内被测物种随后生长的成功。 （c）2005 Elsevier Ltd.保留所有权利。

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