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2022 Vol.64, Issue 4
Efficiency Evaluation of Vegetative Filter Strip for Non-point Source Pollutant at Dense Upland Areas

고랭지밭 밀집지역 초생대의 비점오염 저감 효율 평가

Yeonji Jeonga
,
Dongjun Leeb
,
Hyunwoo Kangc
,
Won Seok Jangd
,
Jiyoung Honge
,
Kyoung Jae Lime†
정 연지a
,
이 동준b
,
강 현우c
,
장 원석d
,
홍 지영e
,
임 경재e†
aMS Student, Department of Regional Infrastructure Engineering, Kangwon National University
bPostdoctoral Scholars, Forest Engineering, Resource & Management, Oregon State University
cResearch Fellow, Division of Public Infrastructure Assessment, Environmental Assessment Group, Korea Environment Institute
dPh.D. Student, Earth and Environment, Boston University
ePh.D. Student, Earth and Environment, Boston University
a강원대학교 지역기반공학과 석사과정 학생
b오번 대학교 지구시스템과학 박사과정 학생
c오리건 주립대학교 산림공학, 자원 및 경영학 박사후연구원
d한국환경연구원 환경평가단 공공기반시설평가과 연구위원
e보스턴 대학교 지구환경학과 박사과정 학생
† Corresponding author Tel.: +82-10-2726-2821 E-mail: kyoungjaelim@gmail.com
2022. pp. 1-10
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Abstract

A vegetative filter strip (VFS) is one of the best management practices (BMPs) to reduce pollutant loads. This study aims to assess the effectiveness of VFS in dense upland field areas. The study areas are agricultural fields in the Maedae (MD), Gaa (GA), and Jaun (JU) watersheds, where severe sediment yields have occurred and the Korean government has designated them as non-point management regions. The agricultural fields were divided into three or four clusters for each watershed based on their slope, slope length, and area (e.g., MD1, MD2). To assess the sediment trapping (STE) and pesticide reduction efficiency (PRE) of VFS, the Vegetative Filter Strip Modeling System (VFSMOD) was applied with three different scenarios (SC) (SC1: VFS with rye vegetation; SC2: VFS with rye vegetation and a gentle slope in VFS range; and SC3: VFS with grass mixture). For SC1, there were relatively short slope lengths and small areas in the MD1 and GA3 clusters, and they showed higher pollutant reduction (STE>50%, PRE>25%). For SC2 and SC3, all clusters in GA and some clusters (MD1 and MD3) in MD show higher pollutant reduction (>25%), while the uplands in JU still show a lower pollutant (<25%). With correlation analysis between geographic characteristics and VFS effectiveness slope and slope length showed relative higher correlations with the pollutant efficiency than a area. The results of this study implied that slope and slope length should be considered to find suitable upland conditions for VFS installations.

Keywords
BMPs
Non-point source pollutant
VFS
VFSMOD
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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 : 64
  • No :4
  • Pages :1-10
  • Received Date : 2020-11-04
  • Revised Date : 2022-05-10
  • Accepted Date : 2022-06-08
  • DOI :https://doi.org/10.5389/KSAE.2022.64.4.001
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