| 再生水灌溉对土壤盐渍化与重金属累积影响研究 |
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| 引用本文： | 张铁军,宋矗森,陈莉荣,李卫平.再生水灌溉对土壤盐渍化与重金属累积影响研究[J].节水灌溉,2016(12):72-75. |
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| 作者姓名： | 张铁军 宋矗森 陈莉荣 李卫平 |
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| 作者单位： | 内蒙古科技大学能源与环境学院,内蒙古 包头,014000 |
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| 基金项目： | 国家自然科学基金(41263010)。 |
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| 摘 要： | 再生水是农业灌溉重要的水资源,为了合理利用城市污水处理后的再生水资源,采用包头南郊污水厂二级出水作为再生水,以自来水为对照进行土柱试验,研究再生水灌溉下对土壤盐渍化以及重金属离子累积分布的影响。结果表明,除0~15 cm土壤中全盐量、电导率会增加外,其余土壤深度全盐量、电导率均无显著差异。重金属在土壤中累积不明显,同时,不同再生水灌溉重金属差异不大,且土壤中重金属含量均远低于国家标准规定的允许值,表明再生水灌溉短期内不会对土壤环境造成污染。
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| 关 键 词： | 再生水 电导率 重金属 |
Effect on Reclaimed Water Irrigation on Soil Salinization and Accumulation of Heavy Metals |
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| Abstract: | The reclaimed water is a important water resource for the agricultural irrigation.In order to make good use of the reclaimed water resources,using Soil column test compared water and reclaimed water.The reclaimed water from Southern sewage plant in Baotou.Research un-der reclaimed water irrigation on soil salinization and the influence of heavy metal ions cumulative distribution.The study shows the salt in the soil and electrical conductivity have no difference except the depth from 0~15 cm of soil.Heavy metal accumulation in soil is not obvious,and the heavy metal have no difference between different reclaimed water irrigated. Heavy metal content in soil were far lower than the national standard value,show that reclaimed water irrigation in the short term won't cause pollution to the soil environment. |
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| Keywords: | reclaimed water electrical conductivity heavy metal |
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