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C. Cronan, W. Reiners, R. Reynolds, G. Lang (1978)
Forest Floor Leaching: Contributions from Mineral, Organic, and Carbonic Acids in New Hampshire Subalpine ForestsScience, 200
N. Johnson (1979)
Acid Rain: Neutralization Within the Hubbard Brook Ecosystem and Regional ImplicationsScience, 204
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A Comparison of Chemical and Isotopic Hydrograph SeparationWater Resources Research, 22
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D. Bottomley, D. Craig, L. Johnston (1984)
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Integrated lake‐watershed acidification study (ILWAS): A mechanistic ecosystem analysisPhilos. Trans. R. Soc. London, Ser. B, 305
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An acid surge in a well‐buffered streamAmbio, 15/16
Peter Dillon, D. Jeffries, W. Scheider (1982)
The use of calibrated lakes and watersheds for estimating atmospheric deposition near a large point sourceWater, Air, and Soil Pollution, 18
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Acid rainSci. Am., 241
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Chemical characteristics of Adirondack lakes.Environmental science & technology, 19 11
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Acidic Precipitation in South-Central Ontario: Recent ObservationsWsq: Women's Studies Quarterly, 35
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Chemistry differences in two streams entering an acidic lake in the Adirondack Mountains, New York (U.S.A.)Water, Air, and Soil Pollution, 29
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Hydrogeologic controls of surface-water chemistry in the Adirondack region of New York StateBiogeochemistry, 3
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DEUTERIUM CONTENT OF CANADIAN WATERS. II.
Peter Dillon, R. Reid, E. Grosbois (1987)
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The Role Of Groundwater In Storm RunoffJournal of Hydrology, 43
Stream water pH may be influenced by (1) the flow paths and (2) the residence time of water that contributes to streamflow, when these hydrologic factors interact with the biogeochemical processes that neutralize H+ ions in the catchment. This paper presents measures of the volumes of groundwater contributing to streamflow, the groundwater residence times, and the sources of stream water acidity found during spring runoff in three basins on the Canadian Shield. Isotopic hydrograph separations were used to estimate the relative contributions of groundwater to spring runoff. The contributions of old (premelt) groundwater to spring runoff were greater (60%) in a well‐buffered, third‐order basin than in a more acidic first‐order basin (49%). Using a simple mixing model, a larger groundwater reservoir (420 mm unit depth) and longer residence time (162 days) were estimated in the third‐order basin. The lowest stream pH (4.8) was observed in a second‐order basin with a wetland that collects drainage from about 79% of the basin. In this basin the principal source of H+ ions was the conifer‐sphagnum wetland. We conclude that the hypotheses that the pH of these streams was proportional to (1) a fraction of streamflow contributed by groundwater or (2) the residence time of water in a basin are rejected. More attention must be focused upon the source of acidity generated in wetlands, since these are ubiquitous in small basins.
Water Resources Research – Wiley
Published: Dec 1, 1990
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