对土壤环境质量的建模和对综合生态风险的早期预警
Fang Xia1, Zefang Zhao2, Xiang Niu3
1School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China.
Environmental pollution (Barking, Essex : 1987)
|December 9, 2023
概括
温州土壤重金属污染造成中度至相当大的生态风险,主要来自 (Cd) 和 (Pb). 未来的趋势取决于金属流量,乐观情景的潜在下降和违约情景的增加.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 生态毒理学 生态毒理学
背景情况:
- 了解土壤中重金属污染的动态情况对于防止污染和评估生态风险至关重要.
- 农业用土壤对粮食安全和人类健康至关重要,使其污染成为一个重大问题.
研究的目的:
- 评估温州农业土壤中重金属污染的生态风险,使用修改后的综合风险指数 (NIRI).
- 预测金属度的未来动态趋势和不同金属流量场景下的相关生态风险.
主要方法:
- 从温州收集和分析了70个农业土壤样本.
- 用修改后的综合风险指数 (NIRI) 进行生态风险评估.
- 构建乐观和违约场景,以模拟未来金属度趋势.
主要成果:
- (Cd) 和 (Pb) 是主要的污染物,其中Cd对NIRI贡献最大.
- 大多数场地表现出中等至相当大的生态风险,米土壤的风险高于植物土壤.
- 场景模拟表明乐观情景中的金属度下降,而违约情景中的趋势增加,影响生态风险水平.
结论:
- 该研究强调温州农业土壤存在重大生态风险,特别是Cd.
- 未来的土壤质量和生态风险对金属流动场景敏感,需要有针对性的管理策略.
- 这些发现为改善土壤质量和管理农业环境中的风险提供了参考.
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