 J. Jpn. Soc. Soil Phys.
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No. 3-, p. .1/* ,**-*ῌ *ῌ*Comparison of the Methods Measuring of Soil Thermal Conductivity
Hidetoshi MOCHIZUKI*, Iwao SAKAGUCHI* and Mitsuhiro INOUE*
Arid Land Research Center, Tottori University, +-3* Hamasaka, Tottori 02*ῌ***+, Japan
Abstract
We measured thermal conductivity of Tottori dune sand and water using four methods, single
heat probe (SPM), twin heat probe (TPM), dual heat probe (DPM), and Decagon probe (KDM). The
measured values were compared.

The thermal conductivity values measured with SPM andDPM are similar, and those with TPM and KDM are also similar. The thermal conductivity ofwater measured with KDM was as high as the value reported in literature, on the other hand thevalues obtained using SPM and DPM were higher than the reported data. As a result, KDM andTPM are recommended to measure soil thermal conductivity.
Key words : thermal conductivity, single heat probe method, twin heat probe method, dual heatprobe method, Decagon probe method.(3H8O;>B > SP 8I34H zῌ l+     m῏{|K\}|;>~8a$Nῌ  Single Heat Probe de Vries and Peck, +3/2 ;3>[ ῌ. 14H8O;>B F
K(ῌ.8I329:-K

Taylor and Jackson, +320 ; Shiozawa and Campbell,

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!"+33/#$Twin Heat ProbeKasubuchi,

8I328rs;>ῐ>"+311 ; %ῒ +32,# Dual Heat Probe  Campbell et(3B o ?@ SP  Twin Heat Probe al., +33+ ; Bristow et al., +33. a ; Bristow et al., +33. b ;FG TP # DP  1>

+33* ;

Bristow et al., +33/ ; Ren et al., +333 ; &'",**,#()

KD, Decagon # 8I3> Decagon Probe  F*+,-./01234. 567῎ῌ

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et al. +33. b#  CDE8 Single Heat Probe^4l +῍ FG SP # H Dual Heat Probe  FG DP #

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 O /D E(  ,**,

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Thermal Conductivity of Tottori Dune
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Measuring Methods of Soil Thermal Conductivity, and References

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Single Heat Probe c SP c

Shiozawa and Campbell (+33*)

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Kasubuchi (+311)

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Bristow et al. (+33. a)

Decagon Probe c KD c

Decagon Devices, Inc., (,**+)

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./49DP !$>?"Bristow, K.L., Kluitenberg, G. J. and Horton, R. (+33.
a) : Measurement of Soil Thermal Properties
with a Dual-Probe Heat-Pulse Technique. Soil
Sci. Soc. Am. J., /2 : +,22ῌ+,3..
Bristow, K.L., White, R.D. and Kluitenberg, G. J. (+33.

TP KD b) : Comparison of Single and Dual Probes for92 SP DP Measuring Soil Thermal Properties with Tran-

@A.!BC3#sient Heating. Aust. J. Soil Res., -, : ..1ῌ.0..

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Probe Heat-Pulse Data. Soil Sci., +0* (+) : +ῌ1.
Campbell, G.S., Calissendor#, C. and Williams, J.H.
(+33+) : Probe for Measuring Soil Speciﬁc Heat

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Using a Heat-Pulse Method. Soil Sci. Soc. Am. J.,// : ,3+ῌ,3-.
Kasubuchi,T.

(+311):

Twin

Transient-State

Cylindrical-Probe Method for the Determinationof the Thermal Conductivity of Soil. Soil Sci., +,.
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¡ῌ¢£¤ῌ¥¦§ D+33/E : gh  pp. +3/ῌ,+*  S¨©I ¨ D+33-E : I  p. IIῌ02 ª« ¬­®ῌK. J. ¯]°±²ῌJ.L. ³°)¯O D,**,E :´µUVWX¶)²ghe.· < gh . 3* : -ῌ3.
Ren, T., Noborio, K., and Horton, R. (+333) : Measuring
Soil Water Content, Electrical Conductivity,   and Thermal Properties with a Thermo-Time  92"[Domain Reﬂectometry Probe. Soil Sci. Soc. Am.

Single Heat ProbeKD,

50

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pp. ,+*ῌ,-/.

of Soil Analysis, Part +. Physical and Mineralog-ῌῌ

+32- : ical Methods second edition, pp. 3./ῌ3/0, Madi- !"#$ %&'son.

()*+,-./ ,, : +ῌ2.

de Vries, D.A. and Peck, A. J. (+3/2) : On the Cylindrical Probe Method of Measuring Thermal Con-01234 : ,**, 2 + 3 +* 405234 : ,**- 2 . 3 1 4