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Characteristics of Mercury Fluxes between Soil and Air in the Farming-Pastoral Ecotone of Songnen Grassland

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  • Yan Sun

    (School of Life Sciences, Hainan Normal University, Haikou 571158, China
    Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China
    These authors contributed equally to this work.)

  • Zhe Zhang

    (School of Environment, Northeast Normal University, Changchun 130117, China
    State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Changchun 130117, China
    These authors contributed equally to this work.)

  • Gang Zhang

    (School of Environment, Northeast Normal University, Changchun 130117, China
    State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Changchun 130117, China
    These authors contributed equally to this work.)

  • Jing Zong

    (School of Environment, Northeast Normal University, Changchun 130117, China
    State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Changchun 130117, China)

  • Hongjie Zhang

    (School of Environment, Northeast Normal University, Changchun 130117, China
    State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Changchun 130117, China)

  • Yuqi Deng

    (School of Environment, Northeast Normal University, Changchun 130117, China)

  • Kaili Yang

    (School of Environment, Northeast Normal University, Changchun 130117, China)

  • Zhaojun Wang

    (School of Environment, Northeast Normal University, Changchun 130117, China
    State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Changchun 130117, China)

  • Dan Cui

    (Literature of School of English, Beijing Foreign Studies University, Beijing 100089, China
    Comparative Literature and Cross-Culture Discipline, Institute of International Language and Culture, Jilin International Studies University, Changchun 130117, China
    College of Foreign Languages, Yanbian University, Yanji 133000, China)

  • Canchao Yang

    (School of Life Sciences, Hainan Normal University, Haikou 571158, China
    Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China)

Abstract

In order to understand the characteristics and influencing factors of surface release fluxes in the typical agro-pastoral mosaic region of the Songnen grasslands of northern China, this study selected two sample plots to, respectively, represent the L. chinensis covered grassland (L), and the Z. mays covered fields (Z) in the Waizi area of Changling County, with western Jilin Province as the study area. This study investigated the atmospheric mercury (Total Gaseous Mercury (TGM)) concentrations, surface soil mercury concentrations, the gaseous elemental mercury exchange fluxes, and related environmental factors. The results showed that the TGM concentrations in two sample plots in the study area were basically the same during the summer and autumn months, but were higher in summer than in autumn, and there was a clear diurnal pattern. The average mercury concentrations in the surface soil were also higher in summer than in autumn. Furthermore, the surface soil has a clear mercury release process, and the mercury release were higher in the sheep grass field than the maize field during the same season. The mercury release fluxes in each site within the ecotone were related to the solar radiation and soil temperature values, and the effects of them on the soil mercury release were independent from one another.

Suggested Citation

  • Yan Sun & Zhe Zhang & Gang Zhang & Jing Zong & Hongjie Zhang & Yuqi Deng & Kaili Yang & Zhaojun Wang & Dan Cui & Canchao Yang, 2023. "Characteristics of Mercury Fluxes between Soil and Air in the Farming-Pastoral Ecotone of Songnen Grassland," Sustainability, MDPI, vol. 15(6), pages 1-24, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:5416-:d:1101181
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    References listed on IDEAS

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    1. Jin, Y.H. & Zhou, D.W. & Jiang, S.C., 2010. "Comparison of soil water content and corn yield in furrow and conventional ridge sown systems in a semiarid region of China," Agricultural Water Management, Elsevier, vol. 97(2), pages 326-332, February.
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