大冶矿区主要公路两侧农田土壤重金属污染特征分析  

Analysis of Characteristics of Heavy Metal Pollution in Farmland Soils on Both Sides of Main Roads in Daye Mining Area

作　　者：孙清斌[1,2] 邓金锋[2] 尹春芹[2] 吴晓维[2] 刘园梅[2] 

机构地区：[1]土壤与农业可持续发展国家重点实验室中国科学院南京土壤研究所,江苏南京210008 [2]湖北理工学院矿区环境污染控制与修复湖北省重点实验室,湖北黄石435003

出　　处：《湖北理工学院学报》2014年第2期20-26,共7页Journal of Hubei Polytechnic University

基　　金：土壤与农业可持续发展国家重点实验室开放基金项目(项目编号:0812201225);湖北理工学院引进人才项目(项目编号:10yjz04R);矿区环境污染控制与修复湖北省重点实验室开放基金项目(项目编号:2013104)

摘　　要：为探索大冶矿区主要公路交通干线两侧农田土壤中重金属的污染现状,为矿区公路两侧农业土壤的安全利用及污染的防治提供一定的科学依据,利用单因子污染指数及内梅罗综合污染指数法评价其环境质量状况,并进一步分析污染的主要来源。结果表明:通过单因子及综合污染指数评价发现,矿区主要公路两侧的农田土壤已受到不同程度的污染,可能对农产品生产造成一定程度的潜在安全隐患。土壤有机质与Cu、Cd、Cr及Ni元素的相关系数均较低。主成分分析显示,大冶矿区公路两侧农田土壤重金属的来源可能为金属冶炼、制造业和交通释放的气溶胶颗粒,以及矿山酸性废水、金属矿山废石和尾矿的长期储存等人类活动。The characteristics of heavy metal pollution in farmland soils on both sides of the main roads in Daye mining area were studied to provide scientific evidence for safe utilization and the pollution prevention of the agriculture soil in the mining area .Its environmental condition was evaluated by using Single Factor Index Method and Nemerow Integrative Pollution Index Method and the major source of pollution was analyzed .The results showed that many farmland soils along the main roads of Daye mining area were suffering from heavy metals pollution by using Single Factor and Integrative Index Methods ,which probably resulted in the poten-tial danger for the safe production of agricultural products .The correlation coefficients between soil organic matter and heavy metal（ Cu、Cd、Cr or Ni） contents were lower.The results from principal component analysis＆amp;nbsp;indicated that the heavy mental source of the farmland on both sides of main roads in Daye mining area is likely to be the aerosol particles emitted by metal smelting ,manufacturing and traffic ,acid mine drainage and metal mine waste rock and long -term stockpiling of tailings ,etc.

关 键 词：矿区 重金属 主要公路 农田土壤污染 

分 类 号：X825[环境科学与工程—环境工程]