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2019 Vol.61, Issue 6 Preview Page
A Study on Regularization Methods to Evaluate the Sediment Trapping Efficiency of Vegetative Filter Strips

식생여과대 유사 저감 효율 산정을 위한 정규화 방안

JooHyun Bea
,
Jeongho Hanb
,
Jae E Yangc
,
Jonggun Kimd
,
Kyoung Ja Lime
,
Won Seok Jangf†
배 주현a
,
한 정호b
,
양 재의c
,
김 종건d
,
임 경재e
,
장 원석f†
aSenior Researcher, Korea Water Environment Research Institute
bPhD Student, Department of Regional Infrastructure Engineering, Kangwon National University
cProfessor, Department of Biological Environment, Kangwon National University
dProfessor, Department of Regional Infrastructure Engineering, Kangwon National University
eProfessor, Department of Regional Infrastructure Engineering, Kangwon National University
fSILC Fellow (PhD), Sustainability Innovation Lab at Colorado (SILC), University of Colorado at Boulder
a한국 수질 환경 연구원 선임 연구원
b강원 대학교 지역 기반 공학과 학사
c강원 대학교 생물 환경학과 교수
d강원 대학교 지역 기반 공학과 교수
e강원 대학교 지역 기반 공학과 전자 교수
ffSILC 펠로우 (PhD), 콜로라도 지속 가능성 혁신 연구소 (SILC), 콜로라도 대학교 볼더
† Corresponding author Tel.: +1-303-735-7439 Fax: +1-303-492-6187 E-mail: won.jang@colorado.edu
2019. pp. 9-19
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Abstract

Vegetative Filter Strip (VFS) is the best management practice which has been widely used to mitigate water pollutants from agricultural fields by alleviating runoff and sediment. This study was conducted to improve an equation for estimating sediment trapping efficiency of VFS using several different regularization methods (i.e., ordinary least squares analysis, LASSO, ridge regression analysis and elastic net). The four different regularization methods were employed to develop the sediment trapping efficiency equation of VFS. Each regularization method indicated high accuracy in estimating the sediment trapping efficiency of VFS. Among the four regularization methods, the ridge method showed the most accurate results according to R2, RMSE and MAPE which were 0.94, 7.31% and 14.63%, respectively. The equation developed in this study can be applied in watershed-scale hydrological models in order to estimate the sediment trapping efficiency of VFS in agricultural fields for an effective watershed management in Korea.

Keywords
Elastic net
LASSO
regularization methods
ridge regression
vegetative filter strips
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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 : 61
  • No :6
  • Pages :9-19
  • Received Date : 2019-10-24
  • Revised Date : 2019-10-25
  • Accepted Date : 2019-10-29
  • DOI :https://doi.org/10.5389/KSAE.2019.61.6.009
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