Multi-interface Processes, Environmental Regulation, and Isotope Applications in Forest Mercury Cycling

Main Article Content

Wanting Liu
1. School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550025, China; 2. The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China

Huifang Zhao
1. School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550025, China; 2. The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China

Ditao Luo
1. School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550025, China; 2. The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China

Juan Li
1. School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550025, China; 2. The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China

DOI: https://doi.org/10.70267/esg2026.v3n2.0720

Keywords

mercury, forest mercury cycle, transition and transformation

Abstract

Mercury (Hg), as a highly toxic heavy metal pollutant, poses a serious threat to ecosystems and human health worldwide. Forest ecosystems, as vital components of terrestrial ecosystems, serve not only as significant sinks for atmospheric Hg but also as key sites for Hg migration and transformation, playing a crucial role in the global Hg cycle. This paper reviews the Hg cycling processes in forest ecosystems. Starting from the global Hg cycle, it delves into the characteristics of Hg cycling within forest ecosystems, including Hg input pathways, vegetation uptake and fixation of Hg, as well as Hg transformation and re-release within plant bodies. Further summaries of Hg migration and storage mechanisms in forest soils elucidate the distribution, migration pathways, and reduction-re-release processes of Hg within these ecosystems. This paper also elaborates on the regulatory role of environmental factors in forest Hg cycling and the application of isotope techniques in forest Hg cycle research. Finally, it proposes future research directions and challenges, aiming to provide a theoretical basis for deepening the understanding of forest Hg cycling processes, accurately assessing the impact of Hg pollution, and formulating global Hg pollution prevention and control strategies.

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Mar 19, 2026
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Vol. 3 No. 2 (2026)
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Liu, W., Zhao, H., Luo, D., & Li, J. (2026). Multi-interface Processes, Environmental Regulation, and Isotope Applications in Forest Mercury Cycling. Environment, Social and Governance, 3(2), 7-20. https://doi.org/10.70267/esg2026.v3n2.0720