土壤有机氯污染风险与调控:基于多过程耦合的视角
作者:
作者单位:

浙江大学环境与资源学院

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学杰出青年基金项目(42225705)


Pollution Risk and Regulation of Organochlorine in Soil: From the Perspective of Multi-process Coupling
Author:
Affiliation:

Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University

Fund Project:

The National Science Fund for Distinguished Young Scholars(42225705)

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    传统和新兴有机氯污染物(Organochlorine pollutants,OCPs)在环境中易形成持久性污染源,可对人类健康和生态环境造成巨大影响。已有大量研究证实,厌氧条件下由土壤微生物胞外呼吸电子传递介导的生源要素循环对OCPs的生物地球化学过程具有重要影响,将进一步调控土壤健康演变方向。从多过程耦合角度厘清残留OCPs的潜在土壤健康风险,在全球“一体化健康”的需求下显得尤为必要。有鉴于此,本文先简明扼要梳理近42年关于土壤中残留OCPs的研究进展与现况,明确热点领域与学术前沿;再从微生物介导的土壤氧化还原多过程耦合角度,梳理OCPs还原脱氯与土壤中关键元素生物化学循环过程之间的潜在关系,深入认识OCPs残留土壤的地下生态环境与健康风险;最后对我国土壤OCPs污染调控的未来研究方向提出建议和展望,为实现OCPs残留土壤的污染治理提供研究思路,以支撑完善土壤健康理论。

    Abstract:

    Traditional and emerging organochlorine pollutants (OCPs) are prone to form persistent sources of pollution, which adversely affect human health and the ecological environment. Although the usage of OCPs has been banned for many years, these pollutants could still be detected in soils, sediments and other environments where they have never been applied. Numerous studies have confirmed that anaerobic reduction dechlorination, the most efficient pathway for the complete removal of OCPs from soil, is essentially a process mediated by the metabolic activity of dechlorination bacteria. Under anaerobic conditions, the environmental fate of OCPs in the soil is abiotically and biotically attributed to biogeochemical redox processes, which are significantly influenced by the cycling of biogenic elements mediated by microbial-extracellular-respiration-initiated electron transfer. A better understanding of the microbial and geochemical interactions that occur during the environmental transformation of OCPs in anaerobic soils is required for improving soil pollution control and remediation. Owing to the global demand for “One Health”, it is quite necessary to illuminate the potential soil health risks of residual OCPs from the perspective of multi-process coupling. As such, this paper aims to briefly comb the research progress and current status of residual OCPs in soil in the past 42 years, and clarify the state-of-the-art research findings and academic frontiers. On this basis, the potential relationship between the reduction and dechlorination of OCPs and the biochemical cycle process of key elements like C, N, Fe and S in the soil is sorted out, to provide a new understanding of the ecological and health risks of underground environment polluted by residual OCPs. Finally, this paper puts forward suggestions and prospects for the future research direction of soil health risk in China, providing research ideas for facilitating pollution reduction of soil polluted by OCPs, thereby supporting the improvement of soil health theory.

    参考文献
    相似文献
    引证文献
引用本文

何艳,苏心,李淑瑶,成洁,杨雪玲,窦继博,徐建明.土壤有机氯污染风险与调控:基于多过程耦合的视角[J].土壤学报,2024,61(5). DOI:10.11766/trxb202312010504 HE Yan, SU Xin, LI Shuyao, CHENG Jie, YANG Xueling, DOU Jibo, XU Jianming. Pollution Risk and Regulation of Organochlorine in Soil: From the Perspective of Multi-process Coupling[J]. Acta Pedologica Sinica,2024,61(5).

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2023-12-01
  • 最后修改日期:2024-03-07
  • 录用日期:2024-05-07
  • 在线发布日期: 2024-05-08
  • 出版日期: