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首页> 外文期刊>International Journal of Environment and Pollution >Microbe-assisted phytoremediation approach for ecological restoration of zinc mine spoil dump
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Microbe-assisted phytoremediation approach for ecological restoration of zinc mine spoil dump

机译：微生物辅助植物修复法修复锌矿弃渣场的生态

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Mining is one of the sectors that impacts air, water and soil pollution. The various environmental problems that are associated with mining activities are deforestation, removal of fertile topsoil, unstable slopes prone to sliding and erosion, siltation of water bodies due to wash off of mineral overburden dumps, air pollution due to discharge of dust and noise pollution. The most effective means of reducing the impact of such potential hazards is rapid revegetation. Revegetation accelerates soil formation, leading to establishment of a stable ecosystem and combats the different problems. The reclamation of mine overburden is intimately associated with the recovery of a stable microbial processes and communities resembling that of a natural soil. To revegetate such eco-vulnerable system, an eco-friendly and cost-effective 'microbe-assisted phytoremediation approach' adopted to restore the nature's pattern of stable and diverse ecosystem on zinc mine spoil dumps. The approach involves isolation and inoculation of site-specific specialised nitrogen-fixing strains of Bradyrhizobium and Azotobacter species, nutrient mobilising vesicular arbuscular mycorrhizal spores of Glomus and Gigaspora sp., selection of suitable plant species (preferable multispecies) and suitable organic amendments. The results indicate that the approach restored the productivity, fertility and stability of zinc mine spoil leading to the development of sustainable ecosystem thereby mitigating the environmental hazards and improving the environmental health of the nearby contaminated sites. Microbe-assisted phytoremediation approach stabilises the negative effects of zinc mine spoil dumps rapidly within a short span of time (2-3 years) in a cost-effective way.
机译：采矿是影响空气，水和土壤污染的行业之一。与采矿活动有关的各种环境问题包括：森林砍伐，肥沃的表层土去除，不稳定的易于滑坡和侵蚀的斜坡，由于冲刷了矿物覆盖物堆而造成的水体淤积，由于扬尘而造成的空气污染和噪声污染。减少此类潜在危害影响的最有效方法是快速恢复植被。植被恢复加速了土壤形成，导致建立了稳定的生态系统并解决了各种问题。矿山覆盖层的开垦与稳定的微生物过程和类似自然土壤的微生物群落的恢复密切相关。为了给这种生态脆弱的系统重新植被，采取了一种生态友好且具有成本效益的“微生物辅助植物修复方法”，以恢复锌矿弃渣场自然界稳定，多样化的生态系统模式。该方法包括分离和接种根瘤菌和固氮菌属物种的特定位点专用固氮菌株，动员Glomus和Gigaspora sp。的囊泡丛枝菌根孢子的营养物，选择合适的植物物种（优选的多物种）和合适的有机修饰物。结果表明，该方法恢复了锌矿渣的生产力，肥力和稳定性，从而导致了可持续性生态系统的发展，从而减轻了环境危害并改善了附近受污染场地的环境健康。微生物辅助植物修复方法可在短时间内（2-3年）以经济有效的方式稳定锌矿弃渣场的负面影响。

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