Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Validation on Performance of Soil Moisture Sensor using Weighing Porous Ceramic Cone Filled with Soil

다공질 세라믹 추를 이용한 중량 토양수분함량 측정 센서의 성능 검증

  • Kim, Ki-Deog (Highland Agriculture Research Institute, National Institute of Crop Science) ;
  • Suh, Jong-Taek (Highland Agriculture Research Institute, National Institute of Crop Science) ;
  • Yoo, Dong-Lim (Highland Agriculture Research Institute, National Institute of Crop Science) ;
  • Kim, Chang-Seok (Highland Agriculture Research Institute, National Institute of Crop Science) ;
  • Jee, Sam-Nyu (Highland Agriculture Research Institute, National Institute of Crop Science) ;
  • Hong, Soon-Choon (Highland Agriculture Research Institute, National Institute of Crop Science) ;
  • Kim, Sung Kyeom (Department of Horticultural Science, College of Agricultural & Life Science, Kyungpook National University)
  • 김기덕 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 서종택 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 유동림 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 김창석 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 지삼녀 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 홍순춘 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 김성겸 (경북대학교 농업생명과학대학 원예과학과)
  • Received : 2021.02.25
  • Accepted : 2021.04.23
  • Published : 2021.04.30
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Abstract

A simple soil moisture measurement method based on the weight of soil cone was developed. Soil cone is a conical porous ceramic cup filled with soil. In the three soil samples (fine sandy soil, silt loam, and sandy loam), the soil moisture content by core method and FDR (Frequency domain reflectometry) method showed a linear relationship with the regression coefficients of 0.92 - 0.98 and 0.97 - 0.99, respectively. The volumetric moisture content of the soil inside the soil cone to the soil cone water weight and the FDR sensor value showed a relationship with regression coefficient of 0.96 and 0.97, respectively. The relationship between the soil cone weight and the FDR sensor value (r2 = 0.99, p < 0.001) was highly significant. Therefore, it was possible to measure soil moisture content by weighing of soil cone.

토양 콘의 무게를 기반으로 한 간단한 토양 수분 측정 방법이 개발되었다. 토양 콘은 토양으로 채워진 원추형 다공성 세라믹 컵이다. 세 가지 토양 샘플에서 코어 방법과 FDR(Frequency Domain reflectometry) 방법에 의한 토양 수분 함량은 직선 회귀식의 결정계수가 각각 0.92-0.98 및 0.97-0.99였으며, 선형 관계였다. 토양 세라믹 콘 내부 토양의 체적 수분 함량과 콘 내부 토양 수분 중량 및 FDR의 센서 값의 회귀 결과 결정계수가 각각 0.96 및 0.97였다. 토양 콘 중량과 FDR 센서 값(r2 = 0.99, p < 0.001) 사이는 높은 유의한 상관관계가 있었다. 따라서 토양 콘의 무게를 측정하여 토양 수분 함량을 측정할 수 있었다.

Keywords

Acknowledgement

본 성과물은 농촌진흥청 연구사업(세부과제번호: PJ01385901)의 지원에 의해 이루어진 것임.

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