| 金乡县大蒜产区土壤重金属特征及潜在生态风险评价 |
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| 引用本文： | 薄录吉,李冰,张荣全,李亚平,李彦,段刚,高新昊.金乡县大蒜产区土壤重金属特征及潜在生态风险评价[J].土壤通报,2021,52(2):434-442. |
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| 作者姓名： | 薄录吉 李冰 张荣全 李亚平 李彦 段刚 高新昊 |
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| 作者单位： | 1.山东省农业科学院农业资源与环境研究所/农业农村部黄淮海平原农业环境重点实验室，山东 济南 250100 |
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| 基金项目： | 山东省农业科学院农业科技创新工程项目（CXGC2019E03/CXGC2016B09）、山东省技术创新引导计划与国家重点研发计划（2018YFD0800406）、山东省重大科技创新工程（2019JZZY010701-2）、山东省大科学计划（2018-001）和泰山产业领军人才项目资助 |
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| 摘 要： | 应用地积累指数、潜在生态风险指数、健康风险指数法和因子分析法对金乡县典型大蒜产区土壤重金属（As、Cd、Cr、Cu、Hg、Ni、Pb和Zn）特征、污染源头及其潜在生态风险进行了评价分析。结果表明:该县大蒜产区土壤重金属As、Cd、Cr、Cu、Hg、Ni、Pb和Zn的平均含量分别为16.27、0.18、63.05、32.79、0.15、32.05、20.71和80.47 mg kg?1，未超过《食用农产品产地环境质量评价标准》（HJ 332—2006）规定的上限值，即多数点位土壤重金属含量处于清洁水平。土壤重金属潜在生态风险低，且没有显著的人体健康风险。土壤中的Cd、Cr、Cu、Pb和Zn可能主要来自施肥、施药和灌溉等农业生产活动，As和Hg可能来自当地煤炭生产等工业活动产生的大气沉降。总体而言，从重金属含量角度评价，该地区土壤质量处于清洁水平，建议今后继续加强大蒜产地投入品的监管和当地煤炭生产及相关工业活动的脱尘处理，以保障大蒜产区土壤具有绿色可持续的生产能力。
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| 关 键 词： | 大蒜产区 污染指数 潜在生态风险评价 健康风险评价 |
| 收稿时间： | 2020-06-16 |
Characteristics and Potential Ecological Risk Assessment of Heavy Metals in Garlic Producing Areas of Jinxiang |
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| Abstract: | To characterize the soil pollution, pollution source and potential ecological risk from heavy metals in the garlic producing area in Jinxiang, eight heavy metals were analyzed and evaluated by using geoaccumulation index, pollution index, potential ecological risk index, health risk index and factor analysis method. The results showed that the average concentrations of As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn did not exceed the specified value prescribed by “Environmental Quality Standards for the Origin of Edible Agricultural Products”, indicating that heavy metals were at clean levels at most sites. The potential ecological risk of Cu, Hg, As, Ni, Pb, Cr, Zn is low in soil in eight heavy metals, and there is no considerable non-carcinogenic or carcinogenic risks for children and adults from these elements. Cd, Cr, Cu, Pb, and Zn may mainly come from agricultural activities such as fertilization, pesticide application, and irrigation. As and Hg may come from atmospheric subsidence generated by local coal production activities. In all, the soil quality in this area is at a clean level. The supervision of inputs such as fertilizers, pesticides, irrigation water and the dust removal of local coal production and related industrial activities should be strengthened in the future to ensure the green and sustainable production capacity of soil in the garlic production area. |
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