GYIG OpenIR  > 环境地球化学国家重点实验室  > 期刊论文
High mercury accumulation in two subtropical evergreen forests in South China and potential determinants
Zhiyun Lu; Xun Wang; Yiping Zhang; Yong-Jiang Zhang; Kang Luo; Liqing Sha
2016
Source PublicationJournal of Environmental Management
Volume183Issue:4Pages:488-496
Abstract
Forests play an important role in global mercury (Hg) cycling. To explain the high Hg accumulation in subtropical forest ecosystems, we studied temporal dynamics of Hg, carbon (C), nitrogen (N), and sulfur (S) in forest soil profiles, as well as litterfall flux and precipitation, in an old-growth moist evergreen broadleaf (EB) forest and a mossy coppice (MC) forest from South China over seven years. The mean soil Hg concentration was 257 +/- 14 ng g(-1) in the O-horizon and 248 +/- 15 ng g(-1) in the A-horizon for the EB forest, and 94 +/- 27 ng g(-1) in the O-horizon and 70 +/- 11 ng g(-1) in the A-horizon for the MC forest. Annual variations in Hg concentration were suggested to be associated with variations in precipitation and litterfall biomass. Significant vertical Hg transport was only observed in the MC forest, which was attributed to its lower organic matter content. Correlation and stoichiometry analyses further suggested that the dynamics in Hg concentration in the forest floor was also closely linked to the variation in S concentration. Additionally, the difference in the soil Hg pool between these two forests was attributed to different litterfall biomass fluxes.
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6563
Collection环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
Recommended Citation
GB/T 7714
Zhiyun Lu,Xun Wang,Yiping Zhang,et al. High mercury accumulation in two subtropical evergreen forests in South China and potential determinants[J]. Journal of Environmental Management,2016,183(4):488-496.
APA Zhiyun Lu,Xun Wang,Yiping Zhang,Yong-Jiang Zhang,Kang Luo,&Liqing Sha.(2016).High mercury accumulation in two subtropical evergreen forests in South China and potential determinants.Journal of Environmental Management,183(4),488-496.
MLA Zhiyun Lu,et al."High mercury accumulation in two subtropical evergreen forests in South China and potential determinants".Journal of Environmental Management 183.4(2016):488-496.
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