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@article{ART002423658},
author={yun yeo jeong and 장은지 and Hyungseok Park and Chung, Se-woong},
title={Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model},
journal={Journal of Environmental Impact Assessment},
issn={1225-7184},
year={2018},
volume={27},
number={6},
pages={548-561}

TY - JOUR
AU - yun yeo jeong
AU - 장은지
AU - Hyungseok Park
AU - Chung, Se-woong
TI - Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model
JO - Journal of Environmental Impact Assessment
PY - 2018
VL - 27
IS - 6
PB - Korean Society Of Environmental Impact Assessment
SP - 548
EP - 561
SN - 1225-7184
AB - The objectives of this study were to construct a three-dimensional (3D) hydrodynamic and water quality model (EFDC) for the river reach between the Daecheong dam and the Sejong weir, which are directly affected by Gap and Miho streams located in the middle of the Geum River, and to evaluate the trophic status and water quality improvement effect according to the flow control and pollutant load reduction scenarios. The EFDC model was calibrated with the field data including water level, temperature and water quality collected from September, 2012 to April, 2013. The model showed a good agreement with the field data and adequately replicated the spatial and temporal variations of water surface elevation, temperature and water quality. Especially, it was confirmed that spatial distributions of nutrients and algae biomass have wide variation of transverse direction. Also, from the analysis of algal growth limiting factor, it was found that phosphorous loadings from Gap and Miho streams to Sejong weir induce eutrophication and algal bloom. The scenario of pollutant load reduction from Gap and Miho streams showed a significant effect on the improvement of water quality; 4.7~18.2% for Chl-a, 5.4~21.9% for TP at Cheongwon-1 site, and 4.2~ 17.3% for Chl-a and 4.7~19.4% for TP at Yeongi site. In addition, the eutrophication index value, identifying the tropic status of the river, was improved. Meanwhile, flow control of Daecheong Dam and Sejong weir showed little effect on the improvement of water quality; 1.5~2.4% for Chl-a, 2.5~ 3.8% for TP at Cheongwon-1 site, and 1.2~2.1% for Chl-a and 0.9~1.5% for TP at Yeongi site. Therefore, improvement of the water quality in Gap and Miho streams is essential and a prerequirement to meet the target water quality level of the study area.
KW - EFDC;Sejong Weir;Geum River;eutrophication;algal bloom
DO -
UR -
ER -

yun yeo jeong, 장은지, Hyungseok Park and Chung, Se-woong. (2018). Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model. Journal of Environmental Impact Assessment, 27(6), 548-561.

yun yeo jeong, 장은지, Hyungseok Park and Chung, Se-woong. 2018, "Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model", Journal of Environmental Impact Assessment, vol.27, no.6 pp.548-561.

yun yeo jeong, 장은지, Hyungseok Park, Chung, Se-woong "Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model" Journal of Environmental Impact Assessment 27.6 pp.548-561 (2018) : 548.

yun yeo jeong, 장은지, Hyungseok Park, Chung, Se-woong. Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model. 2018; 27(6), 548-561.

yun yeo jeong, 장은지, Hyungseok Park and Chung, Se-woong. "Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model" Journal of Environmental Impact Assessment 27, no.6 (2018) : 548-561.

yun yeo jeong; 장은지; Hyungseok Park; Chung, Se-woong. Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model. Journal of Environmental Impact Assessment, 27(6), 548-561.

yun yeo jeong; 장은지; Hyungseok Park; Chung, Se-woong. Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model. Journal of Environmental Impact Assessment. 2018; 27(6) 548-561.

yun yeo jeong, 장은지, Hyungseok Park, Chung, Se-woong. Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model. 2018; 27(6), 548-561.

yun yeo jeong, 장은지, Hyungseok Park and Chung, Se-woong. "Evaluation of Eutrophication and Control Alternatives in Sejong Weir using EFDC Model" Journal of Environmental Impact Assessment 27, no.6 (2018) : 548-561.