期刊
APPLIED GEOCHEMISTRY
卷 26, 期 -, 页码 S214-S217出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.apgeochem.2011.03.107
关键词
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资金
- Pierce Cedar Creek Institute URGE
- National Science Foundation CAREER (NSF) [0348435]
- Directorate For Geosciences
- Division Of Earth Sciences [0348435] Funding Source: National Science Foundation
Salinization and eutrophication caused by runoff of road salt and nutrients was assessed in three kettle lakes, two (Woods and Asylum Lakes) located in urban Kalamazoo, MI, and one (Brewster Lake) in rural Hastings, MI. Profiles of dissolved O(2), conductivity, pH, and temperature were measured in situ, at half meter intervals. Water samples were collected at discrete depth intervals of 1 m and analyzed for Fe(II), Mn(II), ammonium, alkalinity, Cl , Na, Mg, K and Ca. Results of this study indicate that all three lakes are eutrophic with anoxic bottom waters. Conductivity was much greater, and Cl levels were more than 100 times greater, in the two urban lakes compared to the rural lake, demonstrating the significant impact of road salt deicers on urban lake water chemistry. (C) 2011 Elsevier Ltd. All rights reserved.
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