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2020 Vol.62, Issue 4 Preview Page
Determination of EMC and MFFn Rainfall Runoff in Songcheon, Doam Lake Watershed

도암호 유역 송천에서의 강우유출수 분석을 통한 EMC와 초기세척비율 (MFFn) 산정

Hyeokjoon Kwona
,
Jonggun Kimb
,
Kyoungjae Limc
,
Dongjin Kimd
,
Eunmi Honge†
권 혁준a
,
김 종건b
,
임 경재c
,
김 동진d
,
홍 은미e†
aMaster Course Student, Department of Environment Sciences, Kangwon National University
bAssistant Professor, Department of Rural Construction Engineering, Kangwon National University
cProfessor, Department of Rural Construction Engineering, Kangwon National University
dResearcher, Wonju Regional Environmental Management Office
eAssistant Professor, School of Natural Resources and Environmental Science, Kangwon National University
a강원 대학교 환경 과학과 석사 과정 학생
b강원 대학교 농촌 건설 공학과 조교수
c강원 대학교 농촌 건설 공학과 교수
d원주 지방 환경 관리청 연구원
e강원 대학교 자연 자원 환경 과학부 조교수
† Corresponding author Tel.: +82-33-250-8571 Fax: +82-33-259-5563 E-mail: eunmi.hong@kangwon.ac.kr
2020. pp. 13-22
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Abstract

The Doam Lake watershed has a significant impact on the downstream water system due to nutrients and sediment outflow during rainfall caused by steep slopes, soil losses, and fertilization. These non-point sources are unclear in the discharge area and are affected by land use patterns, soil characteristics, and topographical features of the watershed. Therefore, this study conducted rainfall monitoring from July to October 2019 in Songcheon upstream of the Doam Lake watershed, one of the non-point pollution source management areas. Then, after analyzing rainfall runoff, Event Mean Concentration (EMC) and Mass First Flush ratio (MFFn) were calculated to compare and analyze the characteristics of rainfall and the non-point pollutant discharge. As a result of the analysis, it showed various non-point pollutant emission characteristics for each rainfall event. In addition, the concentration of EMC and the MFFn were affected by the average rainfall intensity and the maximum rainfall intensity, and were not significantly affected by the number of antecedent drying days. In the future, it is expected that effective non-point source reduction measures and management measures according to rainfall intensity through continuous monitoring and analysis will be needed.

Keywords
Alpine field
Event Mean Concentration (EMC)
Mass First Flush ratio (MFFn)
Non-Point Source (NPS)
rainfall event
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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 62
  • No :4
  • Pages :13-22
  • Received Date : 2020-05-12
  • Revised Date : 2020-06-16
  • Accepted Date : 2020-06-17
  • DOI :https://doi.org/10.5389/KSAE.2020.62.4.013
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