Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Pollutant Load Characteristics from a Small Mountainous Agricultural Watershed in the North Han River Basin

북한강 중류 산간농업 소하천에서의 오염부하특성분석

  • 신용철 (강원대학교 대학원 지역기반공학과) ;
  • 최중대 (강원대학교 농업공학부) ;
  • 임경재 (강원대학교 환경연구소) ;
  • 심혁호 (강원대학교 대학원 지역기반공학과) ;
  • 류창원 (강원대학교 대학원 지역기반공학과) ;
  • 양재의 (강원대학교 자원생물환경학과) ;
  • 유경열 (강원대학교 자원생물환경학과)
  • Published : 2005.11.01
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Abstract

Natural environment of the Wolgokri stream watershed, located in Chuncheon, Gangwon province, Korea, has been well preserved as a traditional agricultural watershed. To analyze characteristics of NPS pollution generated from an mountainous agricultural watershed, the flow and water qualities of the study watershed were monitored and were analyzed to estimate pollution loads. Annual runoff volume ratio was $70.4\%$. Concentrations of T-N, T-p, COD, and TOC were higher when monthly rainfall was between $0\~30mm$ than those when monthly rainfall was between $30\~70mm$. However, the concentrations varied considerably when monthly rainfall was higher than 100mm. The flow weighted mean concentrations(mg/L) of BOD, COD, TOC, $NO_3-N$, T-N, T-P and SS were 1.96, 2.72, 3.32, 1.41, 4.70, 0.187 and 13.36, respectively. The BOD, SS, T-N and T-P loads of July, 2004 were $48\%,\;17\%,\;51\%\;and\;32\%$ of annual load, respectively. The BOD, COD, TOC, $NO_3-N$, T-N, T-p, and SS loads (kg/ha) from Mar. 2004 to Apr. 2005 were 19.09, 26.55, 32.39, 13.85, 45.92, 1.887 and 130.18, respectively. The highest concentrations of BOD, NO3-N, T-N, T-p, SS, COD and TOC were found before the flow reached the peak runoff, possibly due to the first flushing effect. Generally, pollution loads of the Wolgokri watershed were not that significant. Phosphorus load, however, was higher enough to cause eutrophication in the receiving water body It was recommended that best management practices need to be implemented to reduce phosphorus sources.

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References

  1. Bouwer, M., M. G. Elferink, and G. T. Robillard, 1982, Phosphoenolpyruvate-dependent fructose phospho transferase system of Rhodopseudomonas sphaeroides: Purification and physicochemical and immunochemical characterization of a membrane-associated enzyme I. Biochemistry 21: 82-8 https://doi.org/10.1021/bi00530a015
  2. Choi, J. D., 1997, Effect of Rural Watershed management on the discharge of NPS pollutants to streams. Journal of Rural Development, 1, pp. 91 -107
  3. Choi, J. D., Kim, J. J., and Cheong, J. C., 1997, Soil quality assessment for evvironmentally sound agriculture in the mountainous soils. Journal of the Korean Society of Agricultural Engineers, 39(2), pp. 113-123
  4. Choi, J. D., Lee, C. M., and 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
  5. Choi, J. K, Lee, K. J., Gwon, K. S., and Koo, B. J., 2001, Rural water quality and NPS pollutant loadings in Gangwon -do. Korean Society on Water Quality, pp. 85-88
  6. Choi, J. D. 2003, Pollutant load reduction effect analysis by environmentally sound agricultural managements. 40-91, Hanam, Gyeonggi Han River Basin Environmental Office
  7. Humenik, F. J., M. D. Smolen, and S. A. Dressing, 1987, Pollution from nonpoint sources: Where we are and where we should go. Environ. Sci. Technol., 21: 737-742 https://doi.org/10.1021/es00162a600
  8. Magette, W. L., T. H., Wood, J. D., Weismiller, R. A., and Lessley, B. V., 1989, Indian town best management pratices demonstration farm: Summary of hydrologic and water quality monitoring, 1986-1988. Unpublished report to the Maryland Department of Agriculture, Agricultural Engi-: meering Department, University of Maryland, Maryland
  9. Magette, W. L., 1990, Water quality/land use: Water issues in the Middle Atlantic States, AES and CES of the University of Maryland system and USDA ARS Beltsville, Maryland.' A Symposium paper held in Nov. 1, 1990, Calvery Holiday Inn, Beltsvills, Maryland
  10. Pimental, D., 1993, World soil erosion and conservation. Cambridge Univ. Press, Cambridge, England
  11. Park, C. S., 1999, Monitoring of non-point pollutants from the different land use in the Yulmuncheon tributary watershed. Ph.D. diss. Kangwon University
  12. Sharpley, A. N., and A. D. Halvorson, 1994, The Management of soil phosphorus availability and its impact on surface water quality in R. Lal and B. A. Stewart, eds., Soil Processes and Water Quality (part of the series, Advances in Soil Science). Boca Raton, FL: Lewis Publishers

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