Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Jeffrey S. Kahl"'
Publikováno v:
Ecotoxicology
Mercury (Hg) is a toxic pollutant, widespread in northeastern U.S. ecosystems. Resource managers’ efforts to develop fish consumption advisories for humans and to focus conservation efforts for fish-eating wildlife are hampered by spatial variabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f78962cfb55dbb765aee5a8114b63744
https://doi.org/10.1007/s10646-019-02149-4
https://doi.org/10.1007/s10646-019-02149-4
Autor:
Jasmine E. Saros, William H. McDowell, Sarah J. Nelson, Jeffrey S. Kahl, Sean D. Birkel, Kristin E. Strock
Publikováno v:
Biogeochemistry. 127:353-365
Interannual climate variability is expected to increase over the next century, but the extent to which hydroclimatic variability influences biogeochemical processes is unclear. To determine the effects of extreme weather on surface water chemistry, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ca684f24dc85fc787287e039b16dd3f
https://doi.org/10.1007/s10533-016-0185-9
https://doi.org/10.1007/s10533-016-0185-9
Publikováno v:
Environmental Science & Technology. 48:4681-4689
Previous reports suggest variable trends in recovery from acidification in northeastern U.S. surface waters in response to the Clean Air Act Amendments. Here we analyze recent trends in emissions, wet deposition, and lake chemistry using long-term da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ee9260ddc7f234742b4a5cc963fceee
https://doi.org/10.1021/es404772n
https://doi.org/10.1021/es404772n
Autor:
Jeffrey S. Kahl, Kathleen C. Weathers, Charles D. Canham, Lindsey E. Rustad, Charles T. Driscoll, Brenden E. McNeil, Ellen G. Denny, Steven G. McNulty, Mary A. Arthur, Richard A. Hallett, Scott V. Ollinger, John L. Stoddard, Johnny L. Boggs, L. H. Pardo, Christine L. Goodale, Katherine F. Crowley, M. P. Weand, Gary M. Lovett, Paul G. Schaberg
Publikováno v:
Ecosystems. 15:940-957
Atmospheric nitrogen (N) deposition is altering biogeochemical cycling in forests and interconnected lakes of the northeastern US, and may shift nutrient limitation from N toward other essential elements, such as phosphorus (P). Whether this shift is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29daec73dd005193e21b21c8c5f1ddfc
https://doi.org/10.1007/s10021-012-9550-2
https://doi.org/10.1007/s10021-012-9550-2
Publikováno v:
Journal of Contemporary Water Research & Education. 136:68-79
There is an increasingly recognized need for research teams experienced in science and policy to collect and examine scientific data, and use this information appropriately for the development of social and economic policy. One of the first Federal r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::443c1b7ffe6f67242d8f957d4dda24eb
https://doi.org/10.1111/j.1936-704x.2007.mp136001008.x
https://doi.org/10.1111/j.1936-704x.2007.mp136001008.x
Autor:
Kathleen C. Weathers, David P. Krabbenhoft, K. B. Johnson, Cynthia S. Loftin, Ivan J. Fernandez, Sarah J. Nelson, Jeffrey S. Kahl
Publikováno v:
Applied Geochemistry. 23:384-398
Atmospheric mercury (Hg) is delivered to ecosystems via rain, snow, cloud/fog, and dry deposition. The importance of snow, especially snow that has passed through the forest canopy (throughfall), in delivering Hg to terrestrial ecosystems has receive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df46893db7176885f2675d7337176a72
https://doi.org/10.1016/j.apgeochem.2007.12.009
https://doi.org/10.1016/j.apgeochem.2007.12.009
Publikováno v:
Environmental Monitoring and Assessment. 126:97-104
Fall and spring streamwater samples were analyzed for total mercury (Hg) and major ions from 47 locations on Mount Desert Island in Maine. Samples were collected in zones that were burned in a major wildfire in 1947 and in zones that were not burned.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f52b5334b588ca3bcc497a99071420c
https://doi.org/10.1007/s10661-006-9334-2
https://doi.org/10.1007/s10661-006-9334-2
Autor:
Martha G. Nielsen, Jeffrey S. Kahl
Publikováno v:
Environmental Monitoring and Assessment. 126:81-96
A study of 13 small (less than 7.5 km(2)) watersheds on Mt. Desert Island, Maine, was conducted from January 1999 to September 2000 to determine nutrient export delivery to coastal waters around the island, and to determine whether a series of wildfi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3e2d207683ca63dedcdcf43479c2bde
https://doi.org/10.1007/s10661-006-9333-3
https://doi.org/10.1007/s10661-006-9333-3
Autor:
Molly Schauffler, T. A. Haines, Jeffrey S. Kahl, W. A. Patterson, Sarah J. Nelson, George L. Jacobson, K. B. Johnson
Publikováno v:
Environmental Monitoring and Assessment. 126:39-53
Paleoecological reconstructions of forest stand histories for two upland watersheds at Acadia National Park in Maine were completed to support related watershed chemistry studies. The project hypothesis was that forest type and fire history influence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aa88849b5accfc2348c7fb1170784e0
https://doi.org/10.1007/s10661-006-9330-6
https://doi.org/10.1007/s10661-006-9330-6
Autor:
Bernard J. Cosby, Jonathan Rubin, Ivan J. Fernandez, Jeffrey S. Kahl, Stephen A. Norton, Joshua J. Lawler
Publikováno v:
Water, Air, and Soil Pollution. 164:383-399
We adapted a reduced-form model, built to predict the aquatic effects of alternative nitrogen and sulfur emissions scenarios on Adirondack lakes, New York, for use on high elevation lakes of Maine (HELM), USA. The Tracking and Analysis Framework (TAF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::671b98621ff2502371757e9d524f8a4d
https://doi.org/10.1007/s11270-005-4040-1
https://doi.org/10.1007/s11270-005-4040-1