대청호 상류 유역의 비점오염원 유출특성 분석 및 L-THIA 모형 적용성 평가
Analysis of the Characteristics of NPS Runoff and Application of L-THIA model at Upper Daecheong Reservoir
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초록
Generation and transportation of runoff and pollutant loads within watershed generated eutrophication at Daecheong reservoir. To improve water quality at Daecheong reservoir, the best management practices should be developed and applied at upper watersheds for water quality improvement at downstream areas. In this study, two small watersheds of upper Daecheong reservoir were selected The Long-Term Hydrologic Impact Assessment (L-THIA) model has been widely used for the estimation of the direct runoff worldwide. To apply the L-THIA ArcView GIS model was evaluated for direct runoff and water quality estimation at small watershed. And the Web-based Hydrograph Analysis Tool (WHAT) was used for direct runoff separating from total flow. As a result, the R2 (Coefficient of determination) value and Nash-Sutcliffe coefficient value for direct runoff comparison at An-nae watershed were 0.81 and 0.71, respectively. And the R2 value and Nash-Sutcliffe coefficient value at Wol-oe were 0.95 and 0.93. The R2 value of BOD, TOC, T-N and T-P at An-nae watershed were BOD 0.94, TOC 0.81, T-N 0.94 and T-P 0.89. And the R2 value of BOD, TOC, T-N and T-P at Wol-oe watershed were BOD 0.80, TOC 0.93, T-N 0.86 and T-P 0.65. The result that estimated pollutant loadings using the L-THIA ArcView GIS model reflected well the measured pollutant loadings except for T-P in Wol-oe watershed. With L-THIA ArcView GIS model, the direct runoff and non-point pollutant (NPS) loadings in the watershed could be analyzed through simple input data such as daily rainfall, land uses, and hydrologic soil group.
Abstract
Generation and transportation of runoff and pollutant loads within watershed generated eutrophication at Daecheong reservoir. To improve water quality at Daecheong reservoir, the best management practices should be developed and applied at upper watersheds for water quality improvement at downstream areas. In this study, two small watersheds of upper Daecheong reservoir were selected The Long-Term Hydrologic Impact Assessment (L-THIA) model has been widely used for the estimation of the direct runoff worldwide. To apply the L-THIA ArcView GIS model was evaluated for direct runoff and water quality estimation at small watershed. And the Web-based Hydrograph Analysis Tool (WHAT) was used for direct runoff separating from total flow. As a result, the R2 (Coefficient of determination) value and Nash-Sutcliffe coefficient value for direct runoff comparison at An-nae watershed were 0.81 and 0.71, respectively. And the R2 value and Nash-Sutcliffe coefficient value at Wol-oe were 0.95 and 0.93. The R2 value of BOD, TOC, T-N and T-P at An-nae watershed were BOD 0.94, TOC 0.81, T-N 0.94 and T-P 0.89. And the R2 value of BOD, TOC, T-N and T-P at Wol-oe watershed were BOD 0.80, TOC 0.93, T-N 0.86 and T-P 0.65. The result that estimated pollutant loadings using the L-THIA ArcView GIS model reflected well the measured pollutant loadings except for T-P in Wol-oe watershed. With L-THIA ArcView GIS model, the direct runoff and non-point pollutant (NPS) loadings in the watershed could be analyzed through simple input data such as daily rainfall, land uses, and hydrologic soil group.
참고문헌 (27)
- Arnold, J. G., "Validation of Automated Methods for Estimating Baseflow and Groundwater Recharge From Stream Flow Records", Journal of American Water Resources Association, 35(2), pp.411~424 (1999)
- 천세억, "대청호 유입유량 변동과 수질 및 조류증식의 관계", 한국물환경학회지, 22(2), pp.342~348 (2006), 한국물환경학회
- Donigian, A. S., "Sediment Calibration Procedures and Guidelines for Watershed Modeling", WEF TMDL 2003, November 16-19, WEF Specialty Conference Proceedings on CD-ROM (2003)
- Eckhardt, K., "How to Construct Recursive Digital Filters for Baseflow Separation", Hydrological Processes, 19(2), pp.507~515 (2005)
- Long-term monitoring of non-point source pollutants discharge and reduction measures study, "Jung, M. S.", Han River Environment Research Center, ~ (2008)
- 김유경, "부상웨어 설치에 따른 대청호 조류 성장 억제 효과 수치모의", 한국물환경학회지, 23(5), pp.581~590 (2007), 한국물환경학회
- 김종건, "경사도에 따른 CN보정에 의한 L-THIA 직접유출 모의 영향 평가", 한국물환경학회지, 23(6), pp.897~905 (2007), 한국물환경학회
- 김종건, "선행토양함수조건(AMC)을 고려한 L-THIA WWW 직접유출 모의 정확성 평가", 한국물환경학회지, 23(4), pp.474~481 (2007), 한국물환경학회
- Korea Water Resources Corporation, , ~ (2006)
- "Korean soils information system" (2005)[URL]
- 권영호, "대청호 유역 오염부하량 산정", 상하수도학회지, 16(5), pp.581~595 (2002), 대한상하수도학회
- Long-term monitoring of non-point source pollutants discharge and reduction measures study, "Lee, J. B.", Yeongsan River Environment Research Center, ~ (2008)
- Lee, J. H., "Management of Nonpoint Sources in Watershed -with reference to Daechong Reservoir in Korea", Korean Society of Environmental Impact Assessment, 9(3), pp.163~176 (2000)
- Development of Long-term Hydrologic Impact Assessment (L-THIA) WWW System, "Lim K. J.", International Soil Conservation Organization in cooperation with the USDA and Purdue University, ~ (2001)
- Lim, K. J., "Effects of calibration on L-THIA GIS(http:", ~sprawl, pp.) runoff and pollutant estimation, Journal of Environmental Management[DOI]
- Lyne, Y. D., "Stochastic Time- Variable Rainfall Runoff modeling", Hydro. and Water Resour, Symp, pp.89~92 (1979), Institution of Engineers Australia
- Mockus, V., "Estimation of Direct Runoff from Storm Rainfall, Section 4. Hydrology" (1964), National Engineering Handbook
- Rallison R. E., "Discussion to runoff curve numbers with varying soil moisture", Journal of Irriftion and Drainage Engineering, 105(4), pp.439~441 (1979), ASCE
- Rallison, R. E., "Past, resent, and further SCS runoff procedure", proceedings of International sumpsium on Rainfall-Runoff Modeling, Water Resource (1982), Rublished Littleton, Co.
- Using APEX to identify alternative practices for animal waste management, "Ramanarayanan, T. S.", ~, pp.Paper No. 97- 2209 (1997)
- Long-term monitoring of non-point source pollutants discharge and reduction measures study, "Shin, D. S.", Geum River Environment Research Center, 225~250 (2008)
- 신민환, "농업 및 산림유역의 강우유출수 유량가중평균농도 분석", 한국농공학회논문집, 49(6), pp.3~9 (2007), 한국농공학회
- 신민환, "수질샘플빈도에 따른 산림유역의 비점원오염부하 특성", 한국농공학회논문집, 50(2), pp.65~71 (2008), 한국농공학회
- 신민환, "농촌유역의 비점원오염부하 산정을 위한 LOADEST 모델의 적용성 평가", 한국물환경학회지, 25(2), pp.212~220 (2009), 한국물환경학회
- Soil Conservation Service, "National Engineering Handbook, Section 4. Hydrology" (1972), Department of Agriculture, Soil Conservation Service
- Soil Conservation Service, "National Enginnering Handbook, Section 4, Hydrology" (1985), Department of Agriculture, Soil Conservation Service
- Long-term monitoring of non-point source pollutants discharge and reduction measures study, "You, J. J.", Nakdong River Environment Research Center, ~ (2008)