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정재운,윤광식,주석훈,최우영,이용운,류덕희,이수웅,장남익,Jung, Jae-Woon,Yoon, Kwang-Sik,Joo, Seuk-Hun,Choi, Woo-Young,Lee, Yong-Woon,Rhew, Doug-Hee,Lee, Su-Woong,Chang, Nam-Ik 한국농공학회 2009 한국농공학회논문집 Vol.51 No.6
In this study, pollutant loads delivery ratio by flow duration in Hwangryoung A watershed was estimated. The delivery ratio was estimated with measured data by Ministry of Environment(MOE) and the regression equation based on geomorphic parameters. Eight day interval flow data measured by the MOE were converted to daily flow to calculate daily load and flow duration curve by correlating data of neighboring station which has daily flow data. Regression equation developed by previous study was tested to study watershed and found to be satisfactory. The delivery ratios estimated by two methods were compared. For the case of Biochemical oxygen demand(BOD), the delivery ratios of low flow condition were 7.6 and 15.5% by measured and regression equation, respectively. Also, the delivery ratios of Total phosphorus(T-P) for normal flow condition were 13.3 and 6.3% by measured and regression equation, respectively.