Search Results - "KAHL, J. S"

Regional trends in aquatic recovery from acidification in North America and Europe by Stoddard, J. L, Jeffries, D. S, Lükewille, A, Clair, T. A, Dillon, P. J, Driscoll, C. T, Forsius, M, Johannessen, M, Kahl, J. S, Kellogg, J. H, Kemp, A, Mannio, J, Monteith, D. T, Murdoch, P. S, Patrick, S, Rebsdorf, A, Skjelkvåle, B. L, Stainton, M. P, Traaen, T, van Dam, H, Webster, K. E, Wieting, J, Wilander, A

“…Rates of acidic deposition from the atmosphere ('acid rain') have decreased throughout the 1980s and 1990s across large portions of North America and Europe…”
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evolution of the science of Bear Brook Watershed in Maine, USA by Norton, S. A, Fernandez, I. J, Kahl, J. S, Rustad, L. E, Navrátil, Tomás, Almquist, H

“…The Bear Brook Watershed in Maine (BBWM), USA is a paired watershed study with chemical manipulation of one watershed (West Bear = WB) while the other…”
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Mass Balances of Mercury and Nitrogen in Burned and Unburned Forested Watersheds at Acadia National Park, Maine, USA by Nelson, S. J, Johnson, K. B, Kahl, J. S, Haines, T. A, Fernandez, I. J

“…Precipitation and streamwater samples were collected from 16 November 1999 to 17 November 2000 in two watersheds at Acadia National Park, Maine, and analyzed…”
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Do Nutrient Limitation Patterns Shift from Nitrogen Toward Phosphorus with Increasing Nitrogen Deposition Across the Northeastern United States? by Crowley, K. F., McNeil, B. E., Lovett, G. M., Canham, C. D., Driscoll, C. T., Rustad, L. E., Denny, E., Hallett, R. A., Arthur, M. A., Boggs, J. L., Goodale, C. L., Kahl, J. S., McNulty, S. G., Ollinger, S. V., Pardo, L. H., Schaberg, P. G., Stoddard, J. L., Weand, M. P., Weathers, K. C.

“…Atmospheric nitrogen (N) deposition is altering biogeochemical cycling in forests and interconnected lakes of the northeastern US, and may shift nutrient…”
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Comparison of Hg and Pb fluxes to hummocks and hollows of ombrotrophic big heath bog and to nearby Sargent Mt. Pond, Maine, USA by NORTON, S. A, EVANS, G. C, KAHL, J. S

“…Two hummock cores (separated by 1 m), two hollow cores (separated by 1 m and both within 5 m of the hummock) from ombrotrophic Big Heath, and a single core…”
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Estimation of critical loads of acidity for lakes in northeastern United States and eastern Canada by DUPONT, J, CLAIR, T. A, GAGNON, C, JEFFRIES, D. S, KAHL, J. S, NELSON, S. J, PECKENHAM, J. M

“…The New England Governors and Eastern Canadian Premiers (NEG/ECP) adopted the Acid Rain Action Plan in June 1998, and issued a series of action items to…”
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Climatic Control of Nitrate Loss from Forested Watersheds in the Northeast United States by Mitchell, Myron J, Driscoll, Charles T, Kahl, Jeffrey S, Murdoch, Peter S, Pardo, Linda H

“…Increased losses of nitrate from watersheds may accelerate the depletion of nutrient cations and affect the acidification and trophic status of surface waters…”
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Watershed Nitrogen and Mercury Geochemical Fluxes Integrate Landscape Factors in Long-term Research Watersheds at Acadia National Park, Maine, USA by Kahl, J. S, Nelson, S. J, Fernandez, I, Haines, T, Norton, S, Wiersma, G. B, Jacobson, G. Jr, Amirbahman, A, Johnson, K, Schauffler, M, Rustad, L, Tonnessen, K, Lent, R, Bank, M, Elvir, J, Eckhoff, J, Caron, H, Ruck, P, Parker, J, Campbell, J, Manski, D, Breen, R, Sheehan, K, Grygo, A

“…This paper is an overview of this special issue devoted to watershed research in Acadia National Park (Acadia NP). The papers address components of an…”
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Landscape Controls on Mercury in Streamwater at Acadia National Park, USA by Peckenham, J. M, Kahl, J. S, Nelson, S. J, Johnson, K. B, Haines, T. A

“…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…”
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Paleoecological Assessment of Watershed History in PRIMENet Watersheds at Acadia National Park, USA by Schauffler, M, Nelson, S. J, Kahl, J. S, Jacobson, G. L. Jr, Haines, T. A, Patterson, W. A. III, Johnson, K. B

“…Paleoecological reconstructions of forest stand histories for two upland watersheds at Acadia National Park in Maine were completed to support related…”
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Soil aluminum distribution in the near-stream zone at the Bear Brook watershed in Maine by PELLERIN, B. A, FERNANDEZ, I. J, NORTON, S. A, KAHL, J. S

“…Near-stream and upslope soil chemical properties were analyzed to infer linkages between soil and surface water chemistry atthe Bear Brook Watershed in Maine…”
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review of mercury concentration and deposition in snow in eastern temperate North America by Nelson, S.J, Fernandez, I.J, Kahl, J.S

“…Most published research evaluating total (wet + dry) mercury (Hg) deposition in eastern North America has been conducted during the growing season. However,…”
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Experimental inducement of nitrogen saturation at the watershed scale by Kahl, Jeffrey S, Norton, Stephen A, Fernandez, Ivan J, Nadelhoffer, Knute J, Driscoll, Charles T, Aber, John D

“…The nitrogen cycle of many northern forested ecosystems is being altered by atmospheric deposition. The impact of atmospheric deposition on the nitrogen…”
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Controls on mercury and methylmercury deposition for two watersheds in Acadia National Park, Maine by Johnson, K B, Haines, T A, Kahl, J S, Norton, S A, Amirbahman, Aria, Sheehan, K D

“…Throughfall and bulk precipitation samples were collected for two watersheds at Acadia National Park, Maine, from 3 May to 16 November 2000, to determine which…”
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Regional trends in aquatic recovery from acidification in North America and Europe by STODDARD, J. L, JEFFRIES, D. S, KEMP, A, MANNIO, J, MONTEITH, D. T, MURDOCH, P. S, PATRICK, S, REBSDORT, A, SKJELKVALE, B. L, STAINTON, M. P, TRAAEN, T, VAN DAM, H, LÜKEWILLE, A, WEBSTER, K. E, WLETING, J, WILANDER, A, CLAIR, T. A, DILLON, P. J, DRISCOLL, C. T, FORSIUS, M, JOHANNESSON, M, KAHI, J. S, KEILOGG, J. H

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A regional analysis of lake acidification trends for the northeastern U.S., 1982-1994 by STODDARD, J. L, DRISCOLL, C. T, KAHL, J. S, KELLOGG, J. H

“…(ProQuest: Abstract omitted; see image)[PUBLICATION ABSTRACT]…”
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Have U.S. surface waters responded to the 1990 clean air act amendments? by KAHL, Jeffrey S, STODDARD, John L, HERLIHY, Alan T, KELLOGG, James H, MURDOCH, Peter S, ROY, Karen, WEBSTER, Katherine E, URQUHART, N. Scott, HAEUBER, Richard, PAULSEN, Steven G, BIRNBAUM, Rona, DEVINEY, Frank A, WEBB, James R, DEWALLE, David R, SHARPE, William, DRISCOLL, Charles T

“…Regulatory measures have had a positive effect on acid content in many lakes and streams in the northern and eastern US. Nearly 20 years of data are analyzed…”
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Association of Methylmercury with Dissolved Humic Acids by Amirbahman, Aria, Reid, Andrew L, Haines, Terry A, Kahl, J. Steven, Arnold, Cédric

“…Sorption of methylmercury (MeHg) to three different humic acids was investigated as a function of pH and humic concentration. The extent of sorption did not…”
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Changes in the concentrations and speciation of aluminum in response to an experimental addition of ammonium sulfate to the Bear Brook Watershed, Maine, USA by Postek, K.M, Driscoll, C.T, Kahl, J.S, Norton, S.A

“…Ammonium sulphate was added to the west Bear brook catchment at 900 mol per ha.year during 1989-1992. The east Bear brook catchment served as a control. Soil…”
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Input-output budgets of inorganic nitrogen for 24 forest watersheds in the Northeastern United States: A review by CAMPBELL, John L, HORNBECK, James W, MURDOCH, Peter S, NELSON, Sarah J, SHANLEY, James R, MITCHELL, Myron J, ADAMS, Mary Beth, CASTRO, Mark S, DRISCOLL, Charles T, KAHL, Jeffrey S, KOCHENDERFER, James N, LIKENS, Gene E, LYNCH, James A

“…Input-output budgets for dissolved inorganic nitrogen (DIN) are summarized for 24 small watersheds at 15 locations in the northeasternUnited States. The study…”
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