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2022 Vol.64, Issue 3 Preview Page
Evaluation of Furrow Mulching Methods for Controlling Non-Point Source Pollution Load from a Sloped Upland

경사밭 고랑멀칭 방법에 따른 비점오염 저감효과 평가

So-Jin Yeoba
,
Min-Kyeong Kimb
,
Myung-Hyun Kimc
,
Jeong-Hwan Bangd
,
Soon-Kun Choie†
엽 소진a
,
김 민경b
,
김 명현c
,
방 정환d
,
최 순군e†
aResearch scientist, Climate Change Assessment Division, National Institute of Agricultural Sciences
bSenior researcher, Climate Change Assessment Division, National Institute of Agricultural Sciences
cResearch scientist, Climate Change Assessment Division, National Institute of Agricultural Sciences
dPh.D. researcher, Climate Change Assessment Division, National Institute of Agricultural Sciences
eResearch scientist, Climate Change Assessment Division, National Institute of Agricultural Sciences
a국가농업과학연구소 기후변화평가처 연구과학자
b국가농업과학연구소 기후변화평가처 고급연구원
c국가농업과학연구소 기후변화평가처 연구과학자
d기후변화평가처 박사연구원,국가농업과학연구소
e국가농업과학연구소 기후변화평가처 연구과학자
† Corresponding author Tel.: +82-63-238-2504, Fax: +82-63-238-3823 E-mail: soonkun@korea.kr
2022. pp. 33-43
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Abstract

South Korea’s agricultural nitrogen balance and phosphorus balance rank first and second, respectively, among OECD countries, and proper nutrient management is required to preserve the water quality of rivers and lakes. This study evaluates the effects of furrow mulching on the reduction of non-point source pollution (NPS) load from a sloped upland. The study site was Wanju-gun, Jeollabuk-do, and the survey period was from 2018 to 2019. The slope of the testbed was 13%, and the soil type was sandy loam. The cropping system consisted of maize-autumn Chinese cabbage rotation. The testbed was composed of bare soil (bare), control (Cont.), furrow vegetation mulching (FVM), and furrow nonwoven fabric mulching (FFM) plots. Runoff was collected for each rainfall event with a 1/100 sampler, and the NPS load was calculated by measuring the concentrations of SS, T-N, and T-P. The NPS load was then analyzed for the entire monitoring and crop cultivation periods. During the monitoring period, the effect of reducing the NPS load was 1.5%~44.5% for FVM and 13.1%~55.2% for FFM. During the crop cultivation period, it was 1.2%~80.5% for FVM and 27.0%~65.1% for FFM, indicating that FFM was more effective than FVM. As the NPS load was fairly high during the crop conversion period, an appropriate management method needs to be implemented during this period.

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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 :3
  • Pages :33-43
  • Received Date : 2022-02-28
  • Revised Date : 2022-03-23
  • Accepted Date : 2022-03-30
  • DOI :https://doi.org/10.5389/KSAE.2022.64.3.033
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