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首页> 外文期刊>Water, Air, and Soil Pollution >Study on Mercury Methylation in Phragmites australis Soil and Its Influencing Factors
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Study on Mercury Methylation in Phragmites australis Soil and Its Influencing Factors

机译：芦苇澳洲土壤汞甲基化及其影响因素研究及其影响因素

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摘要

Soil samples of 0-10 cm and subsurface depths of 10-20 cm were collected from thePhragmites australissoil in the Liaohe Estuary, and different salinities (CK, 0.5%, 1.0%, 1.5%, and 2.0%) were prepared in the laboratory under simulated water flooding; soil samples of two depths were added for cultivation under anaerobic conditions, measuring Hg and MeHg contents in soil samples. The results showed that with the increase of salinity, the content of Hg and MeHg in the soil decreased; when the salinity was 2.0%, salinity significantly inhibited the occurrence of mercury methylation. The mass ratio of MeHg in the soils at the depths of 0-10 cm and 10-20 cm increased with the increase of the culture time. It showed that the MeHg mass ratio increased rapidly on the 15th day but decreased significantly on the 25th day; there was no significant correlation between the soil Hg mass ratio and pH and organic matter. The soil Hg mass ratio at a depth of 10-20 cm was negative to SRB correlation relationship; according to the linear relationship, when the SRB content was large, it was not conducive to provide more mercury ions for the occurrence of mercury methylation. There was no significant negative correlation between Hg and MeHg in different depths of soil.
机译：从辽河口澳大利亚澳大利亚药物中收集0-10厘米和地下深度的土壤样品，并在实验室中制备不同的盐度（CK，0.5％，1.0％，1.5％和2.0％）模拟水淹;在厌氧条件下培养两种深度的土壤样品，在土样中测量Hg和Mehg含量。结果表明，随着盐度的增加，土壤中Hg和Mehg的含量降低;当盐度为2.0％时，盐度显着抑制汞甲基化的发生。随着培养时间的增加，0-10厘米的泥土中的MEHG在土壤中的质量比增加。结果表明，在第15天，MEHG质量比迅速增加，但在第25天显着下降;土壤hg质量比和pH和有机物之间没有显着相关性。深度为10-20cm的土壤Hg质量比对于SRB相关关系为阴性;根据线性关系，当SRB含量很大时，不利于提供更多的汞离子，以便发生汞甲基化。土壤不同深度的Hg和Mehg之间没有显着的负相关性。

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  • 来源
    《Water, Air, and Soil Pollution》 |2020年第8期|426.1-426.8|共8页
  • 作者

    Zhang Shiwei; Zheng Dongmei; Xin Yuan; Mao Ying; Shi Liu; Li Huiying;

  • 作者单位

    Shenyang Unitablevers Sch Environm Shenyang 110000 Peoples R China|Shenyang Univ Minist Educ Key Lab Reg Pollut & Ecol Restorat Shenyang Peoples R China;

    Shenyang Unitablevers Sch Environm Shenyang 110000 Peoples R China|Shenyang Univ Minist Educ Key Lab Reg Pollut & Ecol Restorat Shenyang Peoples R China;

    Shenyang Unitablevers Sch Environm Shenyang 110000 Peoples R China|Shenyang Univ Minist Educ Key Lab Reg Pollut & Ecol Restorat Shenyang Peoples R China;

    Shenyang Unitablevers Sch Environm Shenyang 110000 Peoples R China|Shenyang Univ Minist Educ Key Lab Reg Pollut & Ecol Restorat Shenyang Peoples R China;

    Shenyang Unitablevers Sch Environm Shenyang 110000 Peoples R China|Shenyang Univ Minist Educ Key Lab Reg Pollut & Ecol Restorat Shenyang Peoples R China;

    Shenyang Unitablevers Sch Environm Shenyang 110000 Peoples R China|Shenyang Univ Minist Educ Key Lab Reg Pollut & Ecol Restorat Shenyang Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mercury; Methylmercury; Anaerobic biodegradation; Flooding salinity; Soil;

    机译：水星;甲基汞;厌氧生物降解;洪水盐度;土壤;

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