Articles | Volume 20, issue 24
https://doi.org/10.5194/acp-20-16117-2020
https://doi.org/10.5194/acp-20-16117-2020
Research article
 | 
23 Dec 2020
Research article |  | 23 Dec 2020

Soil–atmosphere exchange flux of total gaseous mercury (TGM) at subtropical and temperate forest catchments

Jun Zhou, Zhangwei Wang, Xiaoshan Zhang, Charles T. Driscoll, and Che-Jen Lin

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Cited articles

Agnan, Y., Le, D. T., Moore, C., Edwards, G., and Obrist, D.: New constraints on terrestrial surface-atmosphere fluxes of gaseous elemental mercury using a global database, Environ. Sci. Techol., 50, 507–524, https://doi.org/10.1021/acs.est.5b04013, 2016. 
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Breuer, L., Kiese, R., and Butterbachbahl, K.: Temperature and moisture effects on nitrification rates in tropical rain-forest soils, Soil Sci. Soc. Am. J., 66, 399–402, 2002. 
Carpi, A., Fostier, A. H., Orta, O. R., dos Santos, J. C., and Gittings, M.: Gaseous mercury emissions from soil following forest loss and land use changes: Field experiments in the United States and Brazil, Atmos. Environ., 96, 423–429, https://doi.org/10.1016/j.atmosenv.2014.08.004, 2014. 
Chen, Y., Yin, Y., Shi, J., Liu, G., Hu, L., Liu, J., Cai, Y., and Jiang, G.: Analytical methods, formation, and dissolution of cinnabar and its impact on environmental cycle of mercury, Critical Reviews in Environmental Science and Technology, 47, 2415–2447, https://doi.org/10.1080/10643389.2018.1429764, 2017. 
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Short summary
Mercury (Hg) emissions from natural resources have a large uncertainty, which is mainly derived from the forest. A long-term and multiplot (10) study of soil–air fluxes at subtropical and temperate forests was conducted. Forest soils are an important atmospheric Hg source, especially for subtropical forests. The compensation points imply that the atmospheric Hg concentration plays a critical role in inhibiting Hg emissions from the forest floor. Climate change can enhance soil Hg emissions.
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