Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Method for Calculating the Pollution Load Amount of Agricultural Non-Point Sources Using Land Cover Map

토지피복지도를 활용한 농업비점오염원 오염부하량 산정에 관한 연구

  • Yu, Jieun (Department of Environmental Science & Ecological Engineering, Korea University) ;
  • Kim, Yoonji (Department of Environmental Science & Ecological Engineering, Korea University) ;
  • Sung, Hyun-Chan (Ojeong Resilience Institute, Korea University) ;
  • Lee, Kyung-il (Department of Environmental Science & Ecological Engineering, Korea University) ;
  • Choi, Ji-yong (Institute of Green-Bio Science and Technology, Seoul National University) ;
  • Jeon, Seung-woo (Department of Environmental Science & Ecological Engineering, Korea University)
  • 유지은 (고려대학교 환경생태공학과) ;
  • 김윤지 (고려대학교 환경생태공학과) ;
  • 성현찬 (고려대학교 리질리언스연구원) ;
  • 이경일 (고려대학교 환경생태공학과) ;
  • 최지용 (서울대학교 그린바이오 과학기술원) ;
  • 전성우 (고려대학교 환경생태공학과)
  • Received : 2020.09.22
  • Accepted : 2020.11.23
  • Published : 2020.12.31
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Abstract

Non-point source pollutants have characteristics the render them difficult to manage owing to the uncertainty of flow paths. As agricultural non-point sources account for more than 57% of non-point source pollutants, the necessity for management is increasing. This study examines the possibility of utilizing land cover maps to suggest a more appropriate method of setting management priority for agricultural non-point sources in the Daecheong Lake area and draws implications by comparing the results derived using the cadastral map, as mentioned in the TMDL Basic Policy. To define the prioritized areas for management, the pollution load was calculated for each subbasin using the formula from the TMDL technical guidelines. As a result, the difference in the average pollution load between the land cover map and cadastral map ranged from 11.6% to 21% among the subbasins. In almost all subbasins, there were differences in the ranking of management priorities depending on the land information that was used. In addition, it was found that it was reasonable to use the level 3 land cover map to calculate the load generated by the land system for examining the implementation goals and methods of each data and comparing them with satellite images.

Keywords

References

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