韩城农业土壤重金属污染现状研究  

Situation of Heavy Metals Pollution in the Agricultural Soil of Hancheng City

作　　者：胡明[1] 

机构地区：[1]渭南师范学院化学与生命科学学院/陕西省多河流湿地生态环境重点实验室,陕西渭南714000

出　　处：《湖北农业科学》2014年第4期798-801,805,共5页Hubei Agricultural Sciences

基　　金：国家自然科学基金(41171061);渭南师范学院项目(13YKP008);渭南市科技创新扶持项目(2013KYJ-2)

摘　　要：为研究关中灌区农田土壤重金属的累积与分布特征,评价土壤污染现状,以陕西省韩城市农田土壤为研究对象,按照地理信息要求布点采样,分析了表层土壤中5种重金属的含量,并运用单因子污染指数及综合污染指数进行评价。结果表明,Cr、Cu的污染情况较严重,Pb处于轻度污染,Zn、Mn的污染程度较低。从综合污染指数来看,研究区内农业土壤重金属处于重度污染水平。从空间分布来看韩城西南部地区重金属污染最为严重,西北部地区最轻。建议当地采取适当措施,加强对该地区污染的防治工作,避免对人体健康造成危害。In order to study the soil distribution characteristics of heavy metals in Hancheng city, contents of 5 heavy mentals in surface sediments were sampled and analyzed. The single factor pollution index and comprehensive pollution index were used to evaluate the data. The results showed that the pollution of Cr, Cu were serious. Pb was in the state of light pollution and the levels of Zn, Mn were the lowest. Analyzed with the comprehensive pollution index, the heavy metal pollution of agricultural soil in Hancheng city was in the state of high pollution. With the view of spatial distribution, heavy metal pollution in the southwest area of Hancheng was the most serious, and the northwest area was the lightest. It was suggested that appropriate measures should be taken to prevent and control metal pollution in the region to avoid making harm to human health.

关 键 词：韩城 土壤重金属 空间分布特征 污染评价 

分 类 号：S163.6[农业科学—农业气象学]