Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Characteristics of NPS Runoff and Pollution Contribution Rate in Songya-stream Watershed

송야천 유역의 비점오염물질 유출 특성 및 오염기여율 분석

  • Kang Taeseong (EM Research Institute) ;
  • Yu Nayeong (EM Research Institute) ;
  • Shin Minhwan (EM Research Institute) ;
  • Lim Kyoungjae (Department of Regional Infrastructure Engineering, Kangwon University) ;
  • Park Minji (Division of Watershed and Total Load Management Research, National Institute of Environmental Research) ;
  • Park Baekyung (Division of Water Environmental Engineering Research, National Institute of Environmental Research) ;
  • Kim Jonggun (Department of Regional Infrastructure Engineering, Kangwon University)
  • Received : 2023.06.09
  • Accepted : 2023.07.28
  • Published : 2023.07.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, the characteristics of nonpoint pollutant outflow and contribution rate of pollution in Songya-stream mainstream and tributaries were analyzed. Further, water pollution management and improvement measures for pollution-oriented rivers were proposed. An on-site investigation was conducted to determine the inflow of major pollutants into the basin, and it was found that pollutants generated from agricultural land and livestock facilities flowed into the river, resulting in a high concentration of turbid water. Based on the analysis results of the pollution load data calculated through actual measurement monitoring (flow and water quality) and the occurrence and emission load data calculated using the national pollution source survey data, the S3 and S6 were selected as the concerned pollution tributaries in the Songya-stream basin. Results of cluster analysis using Pearson correlation coefficient evaluation and Density based spatial clustering of applications with noise (DBSCAN) technique showed that the S3 and S6 were most consistent with the C2 cluster (a cluster of Songya-stream mainstream owned area) corresponding to the mainstream of Songya-stream. The analysis results of the major pollutants in the concerned pollution tributaries showed that livestock and land pollutants were the major pollutants. Consequently, optimal management techniques such as fertilizer management, water gate management in paddy, vegetated filter strip and livestock manure public treatment were proposed to reduce livestock and land pollutants.

Keywords

Acknowledgement

본 논문은 환경부의 재원으로 국립환경과학원의 지원을 받아 수행하였습니다(NIER-SP2021-162).

References

  1. Cha, J. U. and Kim, J. Y. (2018). Analysis of fine dust correlation between air quality and meteorological factors using SPSS, Journal of the Korea Institute of Information and Communication Engineering, 22(5), 722-727. [Korean Literature] 
  2. Chung, J. B., Kim, M. K., Kim, B. J., and Park, W. C. (1999). Nitrogen, phosphorus, and organic carbon discharges in the Imgo small agricultural watershed catchment, Korean Journal of Environmental Agriculture, 18(1), 70-76. [Korean Literature] 
  3. Jang, S. S., Ji, H. S., and Kim, H. K. (2018). Identifying priority area for non-point source pollution mangement and setting up load reduction goals using the load duration curve, Journal of Korean Society of Agricultural Engineers, 60(5), 17-27. [Korean Literature] 
  4. Kim, G. S. and Jeong, I. R. (2010). Practical privacy-preserving DBSCAN clustering over horizontally partitioned data, Journal of the Korea Institute of Information Security and Crpytology, 20(3), 105-111. [Korean Literature] 
  5. Kim, K. U., Kang, M. S., Song, I. H., Song, J. H., Park, J. H., Jun, S. M., Jang, J. R., and Kim, J. S. (2016). Effects of controlled drainage and slow-release fertilizer on nutrient pollutant loads from paddy fields, Journal of the Korean Society of Agricultural Engineers, 58(1), 1-10. [Korean Literature]  https://doi.org/10.5389/KSAE.2016.58.1.001
  6. Kim, T. Y., Choi, Y. H., Won, C. H., Park, S. Y., and Choi, J. D. (2010). Comparison of rainfall-runoff characteristics from non-point pollution priority management region in the upstream of Han river basin, Proceedings of the Korea Water Resources Association Conference, Korea Water Resources Association, 1253-1257. [Korean Literature] 
  7. Lee, S. L., Shin, J. Y., Shin, M. H., Seo, J. Y., Park, W. J., and Choi, J. D. (2017). Characteristics of non-point pollutant runoff in highland fields through long-term monitoring, Journal of the Korean Society of Agricultural Engineers, 59(4), 85-96. [Korean Literature]  https://doi.org/10.5389/KSAE.2017.59.4.085
  8. Lee, S. R., Shin, J. Y., Lee, G. J., Sung, Y. S., Kim, K. S., Lim, K. J., and Kim, J. G. (2018). Anaylsis of water pollutant load characteristics and its contributions during dry season: Focusing on major streams inflow into South-Han river of Chungju-dam downstream, Journal of Korean Society of Environmental Engineers, 40(6), 247-257. [Korean Literature]  https://doi.org/10.4491/KSEE.2018.40.6.247
  9. Ministry of Environment (ME). (2007). A study on the improvement of non-point pollution source installation reporting system, Ministry of Environment. [Korean Literature] 
  10. Ministry of Environment (ME). (2020). Korean climate change assessment report 2020, Ministry of Environment. [Korean Literature] 
  11. Ministry of Environment (ME). (2021). Water environmental monitoring network operation plan, Ministry of Environment. [Korean Literature] 
  12. National Institute of Environmental Research (NIER). (2021). Monitoring and investigation of pollutant loads in non-point sources management (2021), Ministry of Environment. [Korean Literature] 
  13. Rim, C. S. and Shin, J. K. (2002). Cluster and factor analyses using water quality data in the Sapkyo reservoir watershed, Journal of Korea Water Resources Association, 35(2), 149-159. [Korean Literature]  https://doi.org/10.3741/JKWRA.2002.35.2.149
  14. Shin, M. H. and Choi, J. D. (2015). Development of best management practice for non-point pollutants in field in Saemangeum watershed, Magazine of the Korean Society of Agricultural Engineers, 57(1), 30-38. [Korean Literature] 
  15. Shin, M. H., Lee, J. A., Cheon, S. U., Lee, Y. J., Lim, G. J., and Choi, J. D. (2010). Analysis of the characteristics of NPS runoff and application of L-THIA model at upper Daecheong reservoir, Journal of the Korean Society of Agricultural Engineers, 52(1), 1-11. [Korean Literature]  https://doi.org/10.5389/KSAE.2010.52.1.001
  16. Woo, S. M., Kum, D. H., Shin, M. H., Jung, H. Y., and Lim, K. J. (2021). Analysis of subcatchment through detailed investigation from non-point pollution management areas, Proceedings of the Korea Water Resources Association Conference, Korea Water Resources Association, 303. [Korean Literature] 
  17. Yu, Y. S., Park, J. Y., Shin, H. J., Kim, S. N., and Kim, S. J. (2012). Improvement of stream water quality by applying best management practices to Chungjudam watershed using SWAT model, Journal of the Korean Society of Agricultural Engineers, 54(1), 55-62. [Korean Literature]  https://doi.org/10.5389/KSAE.2012.54.1.055