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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 particles…
Mercury as a Global Pollutant: Sources, Pathways, and Effects
- C. Driscoll, R. Mason, H. Chan, D. Jacob, N. Pirrone
- Environmental ScienceEnvironmental science & technology
- 16 April 2013
Understanding of sources, atmosphere-land-ocean Hg dynamics and health effects are synthesized, and integration of Hg science with national and international policy efforts is needed to target efforts and evaluate efficacy.
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 been…
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 attributed…
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 White…
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 electric…
The role of dissolved organic carbon in the chemistry and bioavailability of mercury in remote Adirondack lakes
- C. Driscoll, V. Blette, C. Yan, C. Schofield, R. Munson, J. Holsapple
- Environmental Science
- 1 February 1995
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 water…
Mercury cycling in litter and soil in different forest types in the Adirondack region, New York, USA.
- J. D. Demers, C. Driscoll, T. Fahey, Joseph B Yavitti
- Environmental ScienceEcological applications : a publication of the…
- 1 July 2007
Results show that incorporation of mercury into decaying leaf litter increases its residence time in the landscape and may further delay the recovery of surface waters, fish, and associated biota following control of mercury emissions to the atmosphere.
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 that…
Mycorrhizal weathering of apatite as an important calcium source in base-poor forest ecosystems
It seems that apatite weathering can compensate for some of the calcium lost from base-poor ecosystems, and should be considered when estimating soil acidification impacts and calcium cycling.