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Boundary-Crossing Field Research Marks the Way to Evidence-Based Management of Mercury in Forest Landscapes

Bishop, Kevin and Eklöf, Karin (2022). Boundary-Crossing Field Research Marks the Way to Evidence-Based Management of Mercury in Forest Landscapes. Journal of Geophysical Research: Biogeosciences. 127 :8 , e2022JG007065

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The atmospheric deposition of long-range atmospheric mercury pollution presents forest managers with a "wicked" problem-forestry operations run the risk of mobilizing this pollution legacy. Management of that risk would benefit from a process-based understanding of how forest management influences the mercury cycle. This commentary highlights the value for building such an understanding of a comprehensive Before-After-Control-Impact study reported by McCarter et al. (2022), on the Marcel Experimental Forest in the north-central continental US. That study looked at how different types of forest harvest influenced the movement of mercury through the landscape. The results of this study place it at the minimal end of the range of impacts on Hg mobilization resulting from forest harvest. What makes this paper, together with the companion papers resulting from this study, particularly valuable for improving the understanding of forestry influences on mercury is the number of system boundaries that the study crossed: between land and atmosphere, from a forested hillslope down into a wetland, and finally up into the biota on that wetland.Plain Language Summary Forest harvest can mobilize toxic mercury from forest soils and move it into living organisms. This mercury originated in air pollution created far away from the forest, but forest managers still need to deal with the risks of this "pollution legacy" to people, fish and wildlife. A recent study in the north-central US took a detailed look at how two different types of forest harvest mobilized mercury in the soil. This study showed a relatively small impact of the forest harvest on mercury relative to some other studies. Since previous studies have found a wide range of mercury responses to forest harvest, this carefully designed and executed study has value in adding to the evidence base about forest management impacts on mercury in the environment. What is particularly valuable about this study is its comprehensiveness, since it crosses a number of environmental system boundaries: between the forest and the atmosphere, from upslope mineral soils into a downslope peatland, and from the wetland environment into the biota.

Authors/Creators:Bishop, Kevin and Eklöf, Karin
Title:Boundary-Crossing Field Research Marks the Way to Evidence-Based Management of Mercury in Forest Landscapes
Series Name/Journal:Journal of Geophysical Research: Biogeosciences
Year of publishing :2022
Article number:e2022JG007065
Number of Pages:6
Publication Type:Editorial
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Keywords:mercury, fieldwork, forestry, system boundaries, hillslope hydrology, bioaccumulation
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Additional ID:
Type of IDID
Web of Science (WoS)000842512500001
ID Code:28842
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:14 Sep 2022 07:25
Metadata Last Modified:14 Sep 2022 07:31

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