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| 基金项目：江苏省自然资源保护利用专项资金（矿地融合试点）项目“扬州市江都区邵伯镇土地质量地质调查与资源环境综合评价试点”（苏财资环〔2020〕53号） |
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| 摘要： |
| 选取扬州邵伯地区作为研究区，根据评价标准（GB 15618—2018）对其农田土壤环境质量及生态风险进行评价。研究区农田土壤中8种重金属元素平均含量均低于农用地污染风险筛选值，除Ni外其余7种重金属元素的平均含量均超过江苏土壤平均背景值，其中Hg含量均值为江苏土壤平均背景值的2.16倍；通过对比内梅罗指数法和综合指数法评价结果，认为综合指数法能更客观准确地反映研究区农田土壤环境质量状况，结果显示研究区农田土壤轻度污染以上样本占总样本的2.35%；研究区农田土壤属中度生态风险，综合潜在风险指数平均值为200.56，主要贡献因子是Hg。 |
| 关键词：农田土壤 重金属污染 环境质量 内梅罗指数法 综合指数法 生态风险 扬州邵伯 |
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| Abstract: |
| Shaobo Town of Jiangdu District of Yangzhou was selected as the research area to evaluate the farmland soil environmental quality and ecological risk with the latest evaluation standard (GB 15618-2018). The average content of eight heavy metal elements in farmland soil in the study area was lower than the screening value of the agricultural land pollution risk, and the average value of the other seven heavy metal elements except Ni was higher than the average background value of soil in Jiangsu Province, where the average value of Hg was 2.16 times of the average background value of soil in Jiangsu Province. By comparing the evaluation results of Nemerow index method and comprehensive index method, it is concluded that the comprehensive index method can objectively and accurately reflect the status of farmland soil environmental quality in the study area. The evaluation results of this method show that the samples of farmland soil with mild pollution accounted for 2.35% of the total samples. The farmland soil in the study area was of moderate ecological risk, the average value of comprehensive potential risk index was 200.56, and the main contributing factor was Hg. |
| Keywords:farmland soil heavy metal contamination environmental quality Nemerow index method comprehensive index method ecological risk Shaobo Town, Yangzhou |
| 胡秀艳，谢红青，景山，等.扬州江都区邵伯农田土壤环境质量及生态风险评价[J].地质学刊,2023,47(4):412-419 |
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