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http://dx.doi.org/10.15681/KSWE.2015.31.3.313

Influence of River Discharge Fluctuation and Tributary Mixing on Water Quality of Geum River, Korea  

Shim, Moo Joon (Geum River Environment Research Center, National Institute of Environmental Research)
Lee, Soo Hyung (Geum River Environment Research Center, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.31, no.3, 2015 , pp. 313-318 More about this Journal
Abstract
To study the influence of changes in river discharge on water quality of the main stem of the Geum River, we investigated variation of inflow load from tributaries with river discharge. We also studied the mixing behavior of pollutants during mixing of waters of the main stem and Gap Stream. For this study, we collected water quality data such as suspended solids (SS), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen (TN) and total phosphorus (TP) representing pre-monsoon, monsoon, and post-monsoon events of 2013 from a website of Water Information System. Based on inflow load, the Gap and Miho streams may be ones of tributaries which may largely influence water quality of main stem in upper river region. The Suksung and Nonsan Streams seemed to further affect water quality downstream. Results of modified EMMA indicated SS and TP may have another source(besides Gap Stream) at pre-monsoon, monsoon, and post-monsoon period. In contrast, TN and organic matter (BOD, COD, TOC) were conservative at pre-monsoon and post-monsoon. However, when river discharge increased, these pollutants may also came from unspecified non-point sources. Therefore, we need to attempt to find non-point sources for the pollutants in the main channel of upper Geum River region.
Keywords
Gap Stream; River discharge; Tributary mixing; Water quality;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 An, K. G. and Shin, I. C. (2005). Influence of the Asian Monsoon on Seasonal Fluctuations of Water Quality in a Mountainous Stream, Korean Journal of Limnology, 38(1), pp. 54-62. [Korean Literature]
2 Bourgeios-Calvin, A. (2008). Relationship Between Land Use and Surface Water Quality in a Rapidly Developing Watershed in Southeast Louisiana, PD dissertation, University of New Orleans, New Orleans, USA.
3 Choi, H. G., Shin, C., Lee, E. J., and Kang, M. R. (2012). Analysis of Water Quality Impovement by Agricultural Reservoir Operation in Gapcheon Watershed, Proceedings of the 2012 spring co-conference of the Korean Society on Water Environment and Korean Society of Water and Wastewater, Korean Society on Water Environment and Korean Society of Water and Wastewater, pp. 748-749. [Korean Literature]
4 Fortner, S. K., Mark, B. G., McKenzie, J. M., Bury, J., Trierweiler, A., Baraer, M., Burns, P., and Munk, L. (2011). Elevated Stream Trace and Minor Element Concentrations in the Foreland of Receding Tropical Glaciers, Applied Geochemistry, 26, pp. 1792-1801.   DOI
5 Frank, H., Patrick, S., Peter, W., and Hannes, F. (2000). Export Dissolved Organic Carbon and Nitrogen from Gleysol Dominated Catchments-the Significance of Water Flow Paths, Biogeochemistry, 50, pp. 137-161.   DOI
6 Kim, J. I., Choi, J. W., and An, K. G. (2014). Spatial and Temporal Variations of Water Quality in an Urban Miho Stream and Some Influences of the Tributaries on the Water Quality, Journal of Environmental Science International, 23, pp. 433-445. [Korean Literature]   DOI
7 Kim, K. Y. and Lee, H. K. (1996). Heavy Metal Contamination of Stream Water and Sediment in the Taejon Area, Journal of Korean Society of Mineral and Energy Resource Engineers, 33, pp. 266-273.
8 Kronholm, S. C., and Capel, P. D. (2014). A Comparison of High-Resolution Specific Conductance-Based End-Member Mixing Analysis and a Graphical Method for Baseflow Separation of Four Streams in Hydrologically Challenging Agricultural Watersheds, Hydrological Processes, DOI: 10.1002/hyp.10378.   DOI
9 Lim, B., Cho, B., Kim, Y., and Kim, D. (2010). Application of Priority Order Selection Technique for Water Quality Improvement in Stream Watershed by Relationship of Flow and Water Quality, Journal of Korean Society of Environmental Engineers, 32(8), pp. 802-808.
10 Mulholland, P. J. and Hill, W. R. (1997). Seasonal Patterns in Streamwater Nutrient and Dissolved Organic Carbon Concentrations: Separating Catchment Flow Path and In-Stream Effects, Water Resources Research, 33, pp. 1297-1306.   DOI
11 Neill, C., Chaves, J. E., Biggs, T., Deegan, L. A., Elsenbeer, H., Figueiredo, R. O., Germer, S., Johnson, M. S., Lehmann, J., Markewitz, D., and Piccolo, M. C. (2011). Runoff Sources and Land Cover Change in the Amazon: an End-Member Mixing Analysis from Small Watersheds, Biogeochemistry, 105, pp. 7-18.   DOI
12 Park, S., Moon, E., Choi, J., Cho, B., Kim, H., Jeong, W., Yi, S., and Kim, Y. (2011). Analysis of Distribution Characteristics of Fow rate and Water Quality in Tributary at Chungcheongnam-do, Journal of Korean Society of Environmental Engineers, 33(10), pp. 739-747. [Korean Literature]   DOI
13 Shim, M. J. (2011). Dissolved and Colloidal Elements Transport through Coastal Transition Zone, PhD dissertation, University of Southern Mississippi, Hattiesburg, USA, pp. 80-125.
14 Yoo, Y. B., Ji, J. Y., Kim, K. H., Lee, J. A., Lee, H., Lee, G. C., and Bang, S. U. (2007). A Study on the Water Quality Dynamics in the Main Branch Streams of Geum River, Proceedings of the 2007 spring co-conference of the Korean Society on Water Environment and Korean Society of Water and Wastewater, Korean Society on Water Environment and Korean Society of Water and Wastewater, pp. 996-997. [Korean Literature]