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http://dx.doi.org/10.5389/KSAE.2010.52.4.019

Pollutant Load Delivery Ratio for Flow Duration at the Chooryeong-cheon Watershed  

Kim, Young-Joo (전북대학교 농업생명과학대학 지역건설공학과 (농업과학기술연구소))
Yoon, Kwang-Sik (전남대학교 농업생명과학대학 지역.바이오시스템공학과 (농업과학기술연구소))
Son, Jae-Gwon (전북대학교 농업생명과학대학 지역건설공학과 (농업과학기술연구소))
Choi, Jin-Kyu (전북대학교 농업생명과학대학 지역건설공학과 (농업과학기술연구소))
Chang, Nam-Ik (국립환경과학원 기후대기연구부 대기환경연구과)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.52, no.4, 2010 , pp. 19-26 More about this Journal
Abstract
To provide the basic information for the water quality management of the Sumjin River Basin, delivery ratios for flow duration were studied. Using the day-interval data set of discharge and water quality observed from the Chooryeong-cheon watershed, the flow-duration and discharge-load relation curves for the watershed were established, then the load-duration curve was constructed. Delivery ratios for flow duration were also developed. Delivery ratios showed wide variation according to flow conditions. In general, delivery ratio of high flow condition showed higher value reflecting nonpoint source pollution contribution from the forest dominating watershed. To resolve this problem, a regression model explaining the relation between flow rate and delivery ratio was suggested. The delivery ratios for different flow regime could be used for pollutant load estimation and TMDL (Total maximum daily load) development.
Keywords
Duration curver; pollutant loading; runoff; TMDL; water balance;
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Times Cited By KSCI : 7  (Citation Analysis)
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