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当前位置: 首页 > 文章 > 长三角典型农业区耕地土壤重金属污染与潜在生态风险评价 湖北农业科学 2017 (23) 4493-4496+4518
Position: Home > Articles > Heavy Metal Pollution and Potential Ecological Risk Assessment of Cultivated Soil in the Typical Agricultural Region of Yangtze River Delta Hubei Agricultural Sciences 2017 (23) 4493-4496+4518

长三角典型农业区耕地土壤重金属污染与潜在生态风险评价

作  者：
巩万合;王志强;阚建鸾
关键词：
土壤重金属;污染指数;潜在生态风险指数;监测点;耕地类型;南通市
摘  要：
以81个耕地质量长期定位监测点为基础,对长三角典型农业区——江苏省南通市耕地土壤重金属含量进行检测分析,并采用污染指数法与潜在生态风险指数法进行评价。结果表明,南通市全市耕地土壤As、Hg、Pb、Cd、Cr平均含量分别为10.46、0.14、24.51、0.18、49.21 mg/kg,均未超出无公害农产品产地土壤环境质量标准;各重金属元素单因子污染指数均小于1.0,内梅罗综合污染指数小于0.7,潜在生态风险指数小于150,说明南通市耕地土壤环境质量处于安全和低潜在生态风险水平,适合种植无公害农产品。
译  名：
Heavy Metal Pollution and Potential Ecological Risk Assessment of Cultivated Soil in the Typical Agricultural Region of Yangtze River Delta
作  者：
GONG Wan-he;WANG Zhi-qiang;KAN Jian-luan;Nantong Cultivated Land Quality Protection Station;Rugao Agro-Technology Extension Center;
单  位：
Nantong Cultivated Land Quality Protection Station%Rugao Agro-Technology Extension Center
关键词：
soil heavy metal;;pollution index;;potential ecological risk index;;monitoring site;;types of cultivated land;;Nantong city
摘  要：
Based on the long-term monitoring sites of 81 cultivated land qualities, the heavy metal content of cultivated soil in Nantong city,the typical agricultural area of Yangtze River Delta,was tested and evaluated by using the pollution index method and the potential ecological risk index method. The results showed that the average contents of As,Hg,Pb,Cd and Cr in cultivated soil were 10.46 mg/kg,0.14 mg/kg,24.51 mg/kg,0.18 mg/kg and 49.21 mg/kg,respectively,did not exceed the environmental quality standard of soil origins of agricultural products. Single factor pollution index of heavy metals was all less than 1.0,Nemero comprehensive pollution index was less than 0.7,and the potential ecological risk index was less than 150,indicating that farmland soil environmental quality of Nantong city was in a safe and low potential ecological risk level,suitable for planting pollution-free agricultural products.

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