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http://dx.doi.org/10.5389/KSAE.2007.49.6.003

Analysis of Flow-Weighted Mean Concentration(FWMC) Characteristics from Rural Watersheds  

Shin, Min-Hwan (강원대학교 지역기반공학)
Shin, Yong-Chul (강원대학교 농업과학연구소)
Heo, Sung-Gu (강원대학교 지역기반공학)
Lim, Kyoung-Jae (강원대학교 농업공학부)
Choi, Joong-Dae (강원대학교 농업공학부)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.49, no.6, 2007 , pp. 3-9 More about this Journal
Abstract
Stream flow and water quality were measured and analyzed with respect to flow-weighted mean concentrations (FWMCs) of 21 rainfall events from a forested watershed (Forest Research Watershed: FRW) and two mixed watersheds of agriculture and forest (YuPo-Ri Watershed: YPW and WolGog-ri Watershed: WGW) located in the middle of the North Han River basin. The monitoring of each watershed was one year and conducted between 2004 and 2006. YPW showed more intensive agricultural practices than WGW where traditional practices were common. The average of the 21 FWMCs were in the order of YPF>WGW>FRW and were significantly different from each other at the level of 0.05. It was shown that the land use with intensive agricultural practices produced and discharged more NPS pollutants than that with traditional practices and forest. Specially, SS concentrations from the mixed watersheds were significantly higher than those from FRW. Influencing factors on runoff were analyzed rainfall and watershed area. And rainfall intensity was greater impact on runoff than daily rainfall. Measured water quality indices were shown positive correlations among them in general. However, no significant correlation was shown between COD and nutrients(T-N and T-P).
Keywords
FWMC; Rainfall runoff; Water qualities;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Pimental, D., 1993, World soil erosion and conservation. Cambridge Univ. Press, Cambridge, England
2 Choi, J. D., Jang, S. O., Choi, B. Y., and Lyou, S. H., 2000, Monitoring Study on Groundwater Quality of an Alluvial Plane in the North Han River Basin, Journal of the KSWQ, 16(3), pp. 283-294
3 Lyou, C. W., Shin, Y. C., Heo, S. G., Lim, K. J., and Choi, J. D., 2006, Characteristics of nonpoint source pollutant loads from forest watershed. Journal of the KCID, 13(1), pp. 63-71
4 Ministry of Environment, 2005, Standard of Method
5 Humenil, J. J., Smolen, M. D., & Dressing, S. A., 1987, Pollution from nonpoint sources: where we are and where we should go. Environ. Sci. Technol., 21, pp.737-742   DOI   ScienceOn
6 Choi, J. D., 2005, Measurement of non-point source pollution load discharges, Hanam, Gyeonggi: Han River Basin Environmental Office, pp. 69-172
7 Shin, Y. C., Choi, J. D., Lim, K. J., Shim, H. H., Lyou, C. W., Yang, J. E. & Yoo, K. Y., 2005, Pollutant Load Characteristics of a Small Mountainous Agricultural Watershed in the North Han River Basin, Journal of the Korean Society of Agricultural Engineers, 47(6), pp.83-92   과학기술학회마을   DOI   ScienceOn
8 Shin, Y. C., Lyou, C. W., Choi, J. H., Lim, K. J. & Choi, J. D., 2006, Pollutant Load Characteristics by Baseflow in a Small Agricultural Watershed, Journal of the Korean Society on Water Quality, 22(2), pp.244-249
9 Choi, J. D., Lee, C. M., & Choi, Y. H., 1999, Effect of Land Use on the Water Quality of Small Agricultural Watersheds in Gangwon-do. Korea Water Resources Association, 32(4), pp.501-510