Full TGIF Record # 234165
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DOI:10.1111/j.1752-1688.2007.00072..x
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.2007.00072..x/full
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http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.2007.00072..x/pdf
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Publication Type:
i
Report
Author(s):Loucaides, Socratis; Cahoon, Lawrence B.; Henry, Eric J.
Author Affiliation:Loucaides: Doctoral Candiate, Faculty of Geosciences, Department of Earth Sciences - Geochemistry, Utrecht University, Utretcht, The Netherlands; Cahoon: Professor, Department of Biology and Marine Biology; Henry: Associate Professor, Department of Geography and Geology, University of North Carolina-Wilmington, Wilmington, North Carolina
Title:Effects of watershed impervious cover on dissolved silica loading in storm flow
Source:Journal of the American Water Resources Association/AWRA. Vol. 43, No. 4, August 2007, p. 841-849.
# of Pages:9
Publishing Information:Minneapolis, Minnesota: American Water Resources Association
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.2007.00072..x/abstract
    Last checked: 12/12/2013
    Notes: Abstract only
Keywords:TIC Keywords: Evaluations; Impervious cover; Silicon dioxide; Surface runoff; Urban watersheds
Abstract/Contents:"Dissolved silica (DSi) availability is a factor that affects the composition of algal populations in aquatic ecosystems. DSi cycling is tightly linked to the hydrological cycle, which is affected by human alterations of the landscape. Development activities that increase impervious cover change watershed hydrology and may increase the discharge of DSi-poor rainwater and decrease the discharge of DSi-rich ground water into aquatic ecosystems, possibly shifting algal community composition toward less desirable assemblages. In this study, DSi loadings from two adjacent coastal watersheds with different percent impervious cover were compared during four rain and five nonrain events. Loadings in the more impervious watershed contained a significantly larger proportion of surface runoff than base flow (ground-water discharge) and had lower [DSi] water during rain events than the less impervious watershed. Application of the Soil Conservation Service Curve Number (CN) method showed that the minimum rainfall height necessary to yield runoff was significantly lower for the more impervious watershed, implying that runoff volumes increase with impervious cover as well as the frequency of runoff-yielding events. Empirical data collected during this study and estimates derived from the CN method suggest that impervious cover may be responsible for both short-term DSi limitation during rain events as well as long-term reduction of DSi inputs into aquatic ecosystems."
Language:English
References:36
Note:Maps, "Bradley Creek Watershed in New Hanover County, North Carolina" and "Study area showing the two subwatersheds and two streams studied"
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Loucaides, S., L. B. Cahoon, and E. J. Henry. 2007. Effects of watershed impervious cover on dissolved silica loading in storm flow. Water Resour. Bull. 43(4):p. 841-849.
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DOI: 10.1111/j.1752-1688.2007.00072..x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.2007.00072..x/full
    Last checked: 12/12/2013
    Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.2007.00072..x/pdf
    Last checked: 12/12/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: b2206946~S1a
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