亚热带植物科学 ›› 2023, Vol. 52 ›› Issue (3): 253-257.DOI: 10.3969/j.issn.1009-7791.2023.03.010

• 植物生态与资源分类 • 上一篇    下一篇

广东阳西程村镇红树林自然保护区沉积物重金属污染及其来源分析

魏小辉*,张昊晟   

  1. (中交广州水运工程设计研究院有限公司,广东 广州 510220)
  • 收稿日期:2023-02-15 接受日期:2023-04-10 出版日期:2023-06-20 发布日期:2023-08-24
  • 通讯作者: 魏小辉

Pollution Evaluation and Source Analysis of Heavy Metals in Sediments of Chengcun Town Mangrove Nature Reserve in Yangxi, Guangdong

WEI Xiao-hui*, ZHANG Hao-sheng   

  1. (CCCC Guangzhou Water Transportation Engineering Design and Research Institute CO., LTD, Guangzhou 510220, Guangdong China)
  • Received:2023-02-15 Accepted:2023-04-10 Online:2023-06-20 Published:2023-08-24
  • Contact: WEI Xiao-hui

摘要: 对广东阳西程村镇红树林自然保护区内沉积物进行采样,测定Cu、Zn、Ni、Pb、Cd、Cr、Hg、As等8种重金属元素含量,通过地累积指数法以及潜在生态风险指数法评价其污染情况。结果表明,该林区受到重金属污染程度较轻,Pb、Hg是主要的污染来源,其中Hg表现出强生态风险。相关性分析和主成分分析表明,该地区重金属污染主要来源为人类活动。综上所述,程村镇红树林自然保护区受污染情况轻,需控制重金属持续输入。

关键词: 红树林, 沉积物, 重金属, 污染评价

Abstract: Samples were collected from mangrove sediments in Chengcun Town Mangrove Nature Reserve, Yangxi County, Guangdong Province, and the contents of Cu, Zn, Ni, Pb, Cd, Cr, Hg and As were measured. The geo-accumulation index and potential ecological risk index were used to evaluate the pollution situation. The results showed that the heavy metal pollution degree of the forest area was light, Pb and Hg were the main pollution sources with Hg showing strong ecological risk. Correlation analysis and principal component analysis showed that the main source of pollution in this area was human activities. To sum up, the pollution situation in Chengcun Town Mangrove Nature Reserve was light, and the continuous import of heavy metals should be controlled.

Key words: mangrove, heavy metal in sediments, heavy metal, pollution evaluation

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