Mobility and Methylation of Mercury in Forest Soils Development of an In-Situ Stable Isotope Tracer Technique and Initial Results
Mobility and Methylation of Mercury in Forest Soils Development of an In-Situ Stable Isotope Tracer Technique and Initial Results
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DOI：
10.1023/a:1017574103867
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发表时间：
2001-05
期刊：
影响因子：
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通讯作者：
J. Munthe;B. Lyvén;H. Parkman;Y. Lee;Å. Iverfeldt;C. Haraldsson;M. Verta;Petri Porvari
中科院分区：
文献类型：
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作者：
J. Munthe;B. Lyvén;H. Parkman;Y. Lee;Å. Iverfeldt;C. Haraldsson;M. Verta;Petri Porvari
建立了一种研究森林土壤中汞原位甲基化和迁移的方法。该方法是基于添加稳定的199 Hg同位素的森林土壤地块，然后采样和分析的同位素比值totalHg和甲基汞使用ICP-MS。初步结果表明，一小部分（30%）的汞添加到森林土壤中被固定超过16个月的时间尺度。在相同的时间尺度内，一小部分但很重要的汞被甲基化。湿地土壤的甲基化速率高于旱地森林灰壤。
A method for investigating in-situmethylation and mobility of mercury has beendeveloped and applied to forest soil. The methodis based on additions of stable199Hgisotopes to forest soil plots followed bysampling and analysis of isotope ratios of totalmercury and MeHg using ICP-MS. Initial resultsindicate that a fraction (30%) of the mercuryadded to the forest soils is immobilised over atime scale of 16 months. A small but significantfraction of the mercury is methylated during thesame time scale. Higher methylation rates werefound in wetland soil than in dry forest podzolsoil.