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Environmental Engineering Research 2009;14(1): 13-18. DOI: https://doi.org/10.4491/eer.2009.14.1.013
Pollutant Flux Releases During Summer Monsoon Period based on Hydrological Modeling in Two Forested Watersheds, Soyang Lake
S. H. Kang
Halla Eng. & Cons. Corp., R&D, Shinchon-dong, Songpa-gu, 138-734, Korea
Corresponding Author: S. H. Kang ,Tel: +82-2-3434-5631, Fax: +82-2-3434-5670, Email: kang7231@hanmail.net
Received: March 16, 2007;  Accepted: March 12, 2008.
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ABSTRACT
In this study, specific pollutant releases during the Asian monsoon season were estimated and the information was applied to the non-point pollutant sources management from two forested watersheds of the Soyang Lake. The two watersheds are part of the 2,703 km2 Soyang Lake watershed in the northern region of the Han River. The outlets of the two watersheds were respectively analyzed for continuous water quality concentration and for discharge during various single rainfall events. Statistical power function methods are utilized to compare stream discharge and pollutant flux release during the study period. Based on the monitoring data during the study period, the specific load flux method using simulated discharge was conducted and validated in the two watersheds. The model predictions corresponded well with the measured and calculated pollutant releases. The modeling approach taken in this study was found to be applicable for the two forested watersheds.
Keywords: Rainy season | Pollutant flux release | Load rating curve | Hydrological modeling | Soyang Lake
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