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首页> 外文期刊>Journal of Residuals Science & Technology >Heavy Metals in Soil and Sugarcane Accumulation in Agricultural Area along Huanjiang River in Guangxi, China
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Heavy Metals in Soil and Sugarcane Accumulation in Agricultural Area along Huanjiang River in Guangxi, China

机译：广西环江沿岸农业区土壤和甘蔗中重金属的积累

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Heavy metal contaminations to farmland soil is a common threaten to crop yield and food safety, phytoremediation with economic plants with high bio-accumulation is a sustainable approach to recover polluted farmland. As a high ethanol yield crop, sugarcane has attracted increasing industrial interest as a raw material for biofuel and the risk of heavy metal in it is negligible if the sugar produced is to be fermented into ethanol rather than by consumed. This study is to do a preliminary investigation if sugarcane is a suitable crop for phytoremediation in heavy metal polluted farmland in a context of geographic conditions in southern China, thirty-eight soil and sugarcane samples were collected in five villages in a typical agricultural county called Huangjiang which is located in the Huanjiang River Basin in Guangxi province. Sugarcane is widely cultivated in Huangjiang as one of the major economic crops, meanwhile, pollutions induced by mining and ore-extraction in this area has resulted in heavy metals entering the farmland soils. Samples collected were used to assess the correlation of the level of heavy metals in the soil, and their concentrations in roots, sections of stems and leaves. Seven heavy metals were selected in this study and the results showed that most of the toxic heavy metals intake by sugarcane accumulated in the roots, while only a small portion is transferred to the stems and leaves. The study initially outlined sugarcane as a potential candidate for phytoremediation in farmland polluted by heavy metals with economic motivate in this subtropical geographical background.
机译：重金属污染农田土壤是对作物产量和食品安全的普遍威胁，对具有高生物蓄积性的经济植物进行植物修复是恢复受污染农田的可持续方法。作为乙醇的高产作物，甘蔗作为生物燃料的原料已引起了越来越多的工业兴趣，并且如果将产生的糖发酵为乙醇而不是通过消耗，则其中的重金属风险可以忽略不计。这项研究旨在进行初步调查，以了解在中国南方的地理条件下，甘蔗是否适合用于重金属污染农田的植物修复，在典型的黄江农业县的五个村庄中收集了38个土壤和甘蔗样品它位于广西省jiang江流域。甘蔗是黄江地区的主要经济作物之一，广泛种植，与此同时，该地区采矿和矿石开采引起的污染已导致重金属进入农田土壤。收集的样品用于评估土壤中重金属含量及其在根，茎和叶中的含量的相关性。本研究选择了7种重金属，结果表明，甘蔗摄入的大部分有毒重金属都积累在根部，而只有一小部分转移到茎和叶中。该研究最初概述了在这一亚热带地理背景下，甘蔗可以作为农田中被重金属污染且具有经济动机的植物修复的潜在候选者。

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