Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Estimation of Characteristic of the Soil Physical using the Pipe Type Soil Sampler

원관형 토양샘플러를 이용한 토양물리특성 추정

  • Ryu, Ji Hyun (Hwaseong.Suwon District Office, Korea Rural Community Corporation) ;
  • Jung, Myung Kwan (Department of Agricultural Engineering, Kongju National University) ;
  • Park, Seung Ki (Department of Regional Construction Engineering, Kongju National University)
  • Received : 2019.10.15
  • Accepted : 2019.12.26
  • Published : 2020.01.31
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Abstract

The purpose of this study is to develop a pipe type soil sampler that can easily collect soil cross section servey and soil samples to conduct ecological environment surveys while minimizing ecological disturbance in the area subject to soil survey. Furthermore, this study develop the exponential type estimation specific weight formula (ESWF) that uses pipe type soil sampler to easily carry out soil cross section survey and soil sample while estimating the specific weight of the area using water content and soil sample length variation ratio (SLVRs) and to obtain apparent specific gravity, hardness, and max. porosity which are used as growth of corps and ecological environment index. The calibration results of ESWF showed a high degree of significance, with NSE for actual specific weight (γ0) and calibration estimation specific weight (γec) 0.95, R2 for 0.954, and RMSE for 0.051. The verification results of ESWF showed a high significance, with NSE for actual specific weight (γ0) and verification estimation specific weight (γev) 0.881, R2 for 0.978, and RMSE for 0.055.

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References

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