| Sulfate exports from multiple catchments in a glaciated forested watershed in western New York, USA. | |
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MedLine Citation:
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PMID: 17629785 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Sulfate (SO4(2-)) concentrations and fluxes were studied for multiple storm events in the Point Peter Brook watershed, a glaciated, forested watershed located in Western New York, USA. Investigations were performed across one large (696 ha) and three small (1.6-3.4 ha) catchments with varying extent of riparian and wetland areas. Concentrations of SO4(2-) in groundwater sources (mean values: 238-910 micromol(c) L(-1)) were considerably greater than concentrations recorded for rainfall (60 micromol(c) L(-1)) and throughfall (72-129 micromol(c) L(-1)). Seasonality in SO4(2-) concentrations was most pronounced for valley-bottom riparian waters with maximum concentrations in late winter-spring (February-March) and a minimum in late summer (August). Concentrations of SO4(2-) in wetland water were considerably less than riparian water indicating the likelihood of SO4(2-) reduction in anoxic wetland conditions. Storm events displayed a dilution pattern in SO4(2-) concentrations with a minimum coinciding with the maximum in throughfall contributions. End member mixing analysis (EMMA) was able to predict the storm event concentrations of SO4(2-) for four of the six comparisons. Concentrations of SO4(2-) at the outlet of the large (696 ha) catchment were much greater than values recorded for the smaller catchments. Exports of SO4(2-) in streamflow exceeded the inputs from atmospheric deposition suggesting that watersheds like Point Peter Brook may not show any immediate response to decreases in atmospheric SO4(2-) deposition. |
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Authors:
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Shreeram P Inamdar; Myron J Mitchell |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2007-07-14 |
Journal Detail:
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Title: Environmental monitoring and assessment Volume: 139 ISSN: 0167-6369 ISO Abbreviation: Environ Monit Assess Publication Date: 2008 Apr |
Date Detail:
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Created Date: 2008-03-05 Completed Date: 2008-07-31 Revised Date: 2009-05-11 |
Medline Journal Info:
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Nlm Unique ID: 8508350 Medline TA: Environ Monit Assess Country: Netherlands |
Other Details:
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Languages: eng Pagination: 227-45 Citation Subset: IM |
Affiliation:
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Bioresources Engineering, University of Delaware, Newark, DE 19716, USA. inamdar@udel.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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New York Sulfates / analysis* Trees* Water Pollutants, Chemical / analysis* |
| Chemical | |
Reg. No./Substance:
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0/Sulfates; 0/Water Pollutants, Chemical |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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