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上海重金属污染农业土壤农业土壤

Ruihong Li¹, Jingzhi Wang¹, Yuanfei Zhou²

¹Shanghai Center of Agri-Products Quality and Safety, Shanghai, 200335, China.

|December 21, 2023

概括

上海农业土壤显示安全的重金属含量,尽管某些地区需要监测. 含量增加,而,和在十年内下降.

科学领域:

环境科学环境科学
农业科学农业科学
地质化学地质化学

背景情况:

土壤中的重金属通过生物质丰富对人类健康构成风险.
监测土壤污染对于确保安全农业生产至关重要.

研究的目的:

评估上海农业土壤2010年至2020年的重金属污染状况.
确定空间和时间趋势以及重金属污染的潜在来源.

主要方法:

分析了上海农田收集的4000多个土壤样本.
对重金属含量 (Cd,Hg,As,Pb,Cr,Cu) 和土壤肥力参数的统计分析.

主要成果:

上海农业土壤中的重金属含量一般在国家安全范围之内.
空间差异存在,工业密集地区的Cd,Hg和Cr含量较高.
时间趋势显示Cd,Cr和Pb的下降,但Hg的轻微增加.
过度使用肥料可能与某些地区的重金属污染有关.

结论:

上海的农业土壤质量很好,但需要针对特定区域和金属进行有针对性的监测.
时间变化,特别是的增加,需要注意和采取反作用措施.
了解土壤肥力管理与重金属积累之间的关系对于未来的政策和土地利用规划至关重要.

关键词:

农业土壤农业土壤污染污染污染污染这是一种重金属,重金属.工业化的工业化上海上海上海上海上海

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