지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Long-Term Hydrologic Impact Assessment (L-THIA) model which is a distributed watershed model was applied to analyze thespatial distribution of surface runoff and nonpoint source pollutant loading from Imha watershed during 2001～2010. L-THIA CNCalibration Tool linked with SCE-UA was developed to calibrate surface runoff automatically. Calibration (2001～2005) and validation(2006～2010) of monthly surface runoff were represented as ‘very good’ model performance showing 0.91 for calibration and 0.89for validation as Nash-Sutcliffe (NS) values. Average annual surface runoff from Imha watershed was 218.4 mm and Banbyunsubwatershed was much more than other watersheds due to poor hydrologic condition. Average annual nonpoint source pollutantloading from Imha wateshed were 2,295 ton/year for BOD5, 14,752 ton/year for SS, 358 ton/year for T-N, and 79 ton/year for T-P.
Amount of pollutant loading and pollutant loading rates from Banbyun watershed were much higher than other watersheds. As resultsof analysis of loading rate from grid size (30 m×30 m), most of high 10 % of loading rate were generated from upland. Therefore,major hot spot area to manage nonpoint source pollution in Imha watershed is the combination of upland and Banbyun subwatershed.
L-THIA model is easy to use and prepare input file and useful tool to manage nonpoint source pollution at screening level.
목차
등록된 정보가 없습니다.
참고문헌 (14)
참고문헌 신청
Donigian, A. S. / 2003 / Sediment calibration procedures and guidelines for watershed modeling / Chicago, Illinois. WEF Specialty Conference Proceedings on CD-ROM
Engel, B. A. / 2005 / L-THIA NPS Version-2.3 / Purdue University
Imhadam Basin Commission. / 2012 / Management and analysis of the effective of control measures for reducing soil erosion from Imha watershed(in Korean)
Kim, D. S. / 2006 / A study on the estimation of nonpoint source pollution source load using GIS and L-THIA models / 석사 / Yeungnam University
Kim, J. G. / 2010 / Comparison of estimated direct runoff using SWAT and L-THIA in the Doam-dam Watershed / The KCID Journal 17 (1) : 35 ~ 42
Engel, B. A. / 2005 / L-THIA NPS Version-2.3 / Purdue University
Imhadam Basin Commission. / 2012 / Management and analysis of the effective of control measures for reducing soil erosion from Imha watershed(in Korean)
Kim, D. S. / 2006 / A study on the estimation of nonpoint source pollution source load using GIS and L-THIA models / 석사 / Yeungnam University
Kim, J. G. / 2010 / Comparison of estimated direct runoff using SWAT and L-THIA in the Doam-dam Watershed / The KCID Journal 17 (1) : 35 ~ 42
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