摘要
农田重金属污染主要源自大气沉降、污水灌溉、固体废弃物及农用物资的广泛使用等。由于土壤中的重金属难以降解,容易蓄积且毒性较大,不仅会严重影响作物生长,还可能随食物链进入人体,进而危害人体健康。因此,研究农田土壤重金属修复技术具有重要的现实意义。整理了国内外常见的农田土壤重金属修复技术,阐述并分析了各项技术的方法原理以及各项技术在实际应用中的优缺点,为农田土壤重金属污染修复技术研究和实际应用中修复技术的选择提供参考。
Farmland pollution of heavy metals mainly comes from atmospheric precipitation, sewage irrigation, solid waste and the widespread use of agricultural inputs,etc. The heavy metals in soil are usually difficult to degrade,and easy to accumulation and with great toxicity. It not only affects the growth of crop seriously,but also tends to enter human body with the food chain which endangers human body health. In consequence,it is meaningful to study the remediation technology of farmland heavy metal pollution. Common repair technologies about heavy metal pollution in farmland soil at home and abroad were gathered, and the principle, advantages and disadvantages of each technology in practical application were analyzed, so as to provide references for the research of repair technology of farmland soil heavy metal pollution and for the choice of repair technology in practical application.
出处
《现代农业科技》
2016年第12期225-226,229,共3页
Modern Agricultural Science and Technology
基金
广东省省级科技计划项目(2015B090904008)
深圳市科技计划项目(CXZZ20140418105252027)
广东省生态环境建设与保护(铁汉)工程技术研究中心(粤科函政字〔2013〕1589号)
关键词
农田
土壤重金属
修复技术
farmland
pollution of heavy metals
remediation technology
