Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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A Study of Relation Between Yamanaka Hardness and Penetrometer Cone Index

토양 경도 측정방법간 비교연구

  • 한경화 (농촌진흥청 국립농업과학원 토양비료관리과) ;
  • 조희래 (농촌진흥청 국립농업과학원 토양비료관리과) ;
  • 전상호 (농촌진흥청 국립농업과학원 토양비료관리과) ;
  • 장용선 (농촌진흥청 국립농업과학원 토양비료관리과)
  • Received : 2011.05.27
  • Accepted : 2011.06.08
  • Published : 2011.06.30
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Abstract

This study was conducted in order to compare between Yamanaka hardness (YA), hand-push type, and penetrometer cone index (PE), on 16 upland sites. Yamanaka hardness had significant correlation with penetrometer cone index. The regression equation was $PE=1.80^*YA+0.16$ ($R^2=0.91^{***}$, N=16) with the applicative YA range of 0.1-1.3 MPa.

산중식 경도 (YA, MPa)와 관입식 경도 Cone index (PE, MPa) 의 측정치를 토양특성이 다른 16개 지점에서 비교해 본 결과, 다음과 같은 회귀식을 구할 수 있었다. $$PE=YA^*1.80+0.16(R^2=0.91^{***},N=16)$$ 이 회귀식의 적용범위는 산중식경도 0.1 MPa 이상 1.3 MPa 이하, mm 단위로 8.0 mm 이상 24.5 mm 이하였다.

Keywords

References

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