The Potential for Waste‐Derived Materials to Form Soil Covers for the Restoration of Mine Tailings in Ireland
The Potential for Waste‐Derived Materials to Form Soil Covers for the Restoration of Mine Tailings in Ireland
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DOI：
10.1002/ldr.2465
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发表时间：
2016-04
影响因子：
4.7
通讯作者：
D. Smart;S. Callery;R. Courtney
中科院分区：
文献类型：
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作者：
D. Smart;S. Callery;R. Courtney
尾矿场的植被恢复可能需要大量表土，而表土的采购成本高昂且会产生有害影响。为了解决爱尔兰尾矿场的这个问题，通过将不同比例的冰耕与储存的泥炭和堆肥混合来创建工程土壤。使用一系列土壤参数和植被生长特征评估土壤状况，并与当地表土进行比较。在工程土壤上评估了大麦（大麦）的发芽和生长试验：堆肥与冰耕地、泥炭与冰耕地、堆肥/泥炭与冰耕地和表土。检查了一系列土壤质量参数，包括：养分状况、脱氢酶活性、金属可用性和物理特性（体积/颗粒密度和孔隙率）。结果表明，堆肥源土壤产生了优异的植物生物量和养分含量，而泥炭源处理则表现出养分缺乏。虽然工程土壤有可能替代采购表土来覆盖尾矿，但堆肥的磷和金属含量应在纳入之前进行评估。版权所有 © 2015 约翰·威利父子有限公司
Revegetation of mine tailings sites can require significant amounts of topsoil, the sourcing of which can be costly and have detrimental impacts. To address this problem at an Irish mine tailings site, engineered soils were created by mixing varying rates of glacial till with stockpiled peat and compost. Soil status was assessed using a range of soil parameters and vegetation growth characteristics and compared with locally sourced topsoil. Hordeum vulgare (Barley) germination and growth trials were assessed on engineered soils: compost with glacial till, peat with glacial till, compost/ peat with glacial till and topsoil. A range of soil quality parameters were examined including: nutrient status, dehydrogenase activity, metals availability and physical characteristics (bulk/particle density and porosity). Results demonstrate that compost derived soils yielded superior plant biomass and nutrient content, whilst peat derived treatments exhibited nutrient deficiency. Whilst the engineered soils offer potential as an alternative to sourcing topsoil for covering mine tailings, the phosphorus and metal content of composts should be assessed prior to inclusion. Copyright © 2015 John Wiley & Sons, Ltd.