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Acidic Deposition in the Northeastern United States: Sources and Inputs, Ecosystem Effects, and Management Strategies
A deposition is the transfer of strong acids and acid-forming substances from the atmosphere to the surface of the Earth. The composition of acidic deposition includes ions, gases, and particlesExpand
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Mercury as a Global Pollutant: Sources, Pathways, and Effects
Mercury (Hg) is a global pollutant that affects human and ecosystem health. We synthesize understanding of sources, atmosphere-land-ocean Hg dynamics and health effects, and consider the implicationsExpand
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Long-Term Effects of Acid Rain: Response and Recovery of a Forest Ecosystem
Long-term data from the Hubbard Brook Experimental Forest, New Hampshire, suggest that although changes in stream pH have been relatively small, large quantities of calcium and magnesium have beenExpand
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Regional trends in aquatic recovery from acidification in North America and Europe
Rates of acidic deposition from the atmosphere (‘acid rain’) have decreased throughout the 1980s and 1990s across large portions of North America and Europe. Many recent studies have attributedExpand
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Mercury Contamination in Forest and Freshwater Ecosystems in the Northeastern United States
ABSTRACT Eastern North America receives elevated atmospheric mercury deposition from a combination of local, regional, and global sources. Anthropogenic emissions originate largely from electricExpand
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Colder soils in a warmer world: A snow manipulation study in a northern hardwood forest ecosystem
In this special section of Biogeochemistry, we present results from asnow manipulation experiment in the northernhardwood forest ecosystem at the Hubbard BrookExperimental Forest in the WhiteExpand
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The role of dissolved organic carbon in the chemistry and bioavailability of mercury in remote Adirondack lakes
A number of recent studies have documented elevated concentrations of mercury (Hg) in fish caught in remote lakes and a pattern of increased concentrations of Hg in fish tissue with decreasing waterExpand
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Biological Mercury Hotspots in the Northeastern United States and Southeastern Canada
ABSTRACT Biological mercury (Hg) hotspots were identified in the northeastern United States and southeastern Canada using a data set of biotic Hg concentrations. Eight layers representing three majorExpand
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The biogeochemistry of calcium at Hubbard Brook
AbstractA synthesis of the biogeochemistry of Ca was done during 1963–1992in reference and human-manipulated forest ecosystems of the Hubbard BrookExperimental Forest (HBEF), NH. Results showed thatExpand
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Modeling nitrogen saturation in forest ecosystems in response to land use and atmospheric deposition
Abstract A generalized, lumped-parameter model of carbon (C), water, and nitrogen (N) interactions in forest ecosystems (PnET-CN) is presented. The model operates at a monthly time step and at theExpand
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