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4
5
J. Jpn. Soc. Soil Phys.
#%
No. +*/, p. .3./2 /,**10

 .2 
    : ,**0  +*  +.  
  :   £]T2 ¤T"  <`" D VwῌVsael !


   ]" ¥%ij 2* kPa ij ¦§¨©*5ª67«8 ]T2 ijbc!" ¬/ῌ !"  #$%&'()*+,-./012 34!56

7

8" 9:;<=>: <?@" #$¦­§®," 9Y¯:M.¡`4]M8" ;°<=6*%A«±,]hh" #t²)>³9 %A,$O´@P1µ¶A·]@P12 : ?¸" ¹º%,»" ¯:" @¼$" 6%%ABC D pH"  Eh E4F" #
AGH" IJAK841LM,NO4@P178/012 !" 

IJBQRMSTU" VWXY1
Z;P@" #$ %A[\]"E#ects of Organic Matter, Clay, and Water
Content on Water Repellency of Sandy Soils
Tokyo University of Agriculture and Technology^_ Y&'()*+0` Aa!]T2 3bc"

D.A.L. LEELAMANIE, Jutaro KARUBE+ # pH !d78e" fg]YP," F8h

E#ects of hydrophobic and hydrophilic organic

HTU - #ij\EkG"

compounds, clays, and water content on soil water, # pH !\l <?@ + m$%n,o1"

repellency under wetting and drying processes were- # pH \p!" q78e" fg]YP"

examined. Stearic acid or glucomannan or both were. # pH \!" r%" s%" \t78 IQ-

used as organic compounds and kaolinite or Na-mont-+/* ,&]@P1"

morillonite was used as a clay conditioner. Soil wa-

Yu,87 Y?T2

ter repellency was estimated using water drop pene- : " # pH, t vt wxyz

tration time test.

Repellency did not appear in sam-ples without stearic acid. In wetting process, addition of + to ,῍ clay increased soil water repellency.

ῌ !"#$
%&'()*+,{|In drying process, critical water content increased
with kaolinite content. Soil water repellency disap-}*(~ 'ῌ(ῌ

peared with montmorillonite but not with kaolinite.
Maximum repellency was observed not at oven dried #)*%A" + - Yt+,but at air dried condition. The range of water con-$ J A-) : D VwῌVspl M" , - Yt

tent at which soils exhibit water repellency increased

+,$ . ;<=/0% /0/0with kaolinite content and further increased with glu-r)" 3 ,comannan addition. Soil water repellency was sen-$AN]T2 7Gr1/!" 

<1) : D VwῌVsael

sitive to water content at about air dried condition.

<`" D VwῌVspl !" 2 ]T2 ]7]" Key words : soil water repellency, organic matter, clay,3 ¡`4] <`" D VwῌVspl !" ¢=

water content

 t(  +*/ ¼ i,**1j50

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Key words : Air Permeability, Air Permeability Test-

01"

ing Device, Sandy Soil, Soil Pollution

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Pablo Undurrage DŒ
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52

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F>hMeasurements of Moisture Properties of
Takamatsuzuka Tumulus Soil
National Institute of Cultural Properties Tokyo
Magdi KHALIL, Takeshi ISHIZAKIThe University of Tokyo Masaru MIZOGUCHI
There are many beautiful mural paintings inside
the stone chamber of tumulus in Asian countries.

!"#$%&'()*+,-./
01 23456

InJapan, mural paintings of Takamatsuzuka tumulus
were painted in eighth century. The special commit-?ij@kjDEl ABmῌnC D

tee for the conservation of these paintings decided to?jjEFDEl AG H

keep these paintings in the tumulus in the similar con-oIpq r4AKst uv5_;<7w

dition before the excavation. Recently fungi were= JKx 7Lh:MA pq r4

found on the wall surface and caused severe damages

w=N,yz]{|}OAK uv -.0 P7 / ~7

for paintings. In order to clarify the cause of the fun-w=aQ, Rr4 oIpq,* tῌha J

gi and ﬁnd suitable protective measures, it is neces-

Hr4 3 .* tῌha JHr4 VA2JKr4

sary to know the moisture and temperature condi-,* tῌha pq 5 7A S tions and other necessary physical properties of the

TA2 + 7e7:MK Rr4;<7J

mound soil and stone chamber. For this purpose, soilKx  w=8a7 

samples were obtained from the mound by air boringK ,*tῌha JHr4;<7Rr4,3U. 7VPW,'3WX

method and moisture, thermal and mechanical prop-uAerties were obtained. These measured physical prop-

K JKr4T^ .* tῌha JHr4;<7erties were used to propose protective measures of8feXAY Z8AK

the Takamatsuzuka Tumulus.

 : oIpq  w=[8 stKey words : Takamatsuzuka Tumulus, mural paintings, soil physics properties

t .2 ³+, N´v µ¶·F µ¤ ¸v¹ X7 º+, N»uvºX7w¼

53

Dept. of Biotechnology, Chemistry and,  


Environmental Engineering, Aalborg University  

The soil-gas di#usion coe$cient (Dp) govern the 
 





Per MOLDRUP
transport and emission of greenhouse gases and volatile organic chemicals in the unsaturated zone. Ac-  !"#$%&!'

curate description of Dp is needed to realistically sim- ())*+,-.)/01&!

ulate the transport of gaseous phase contaminants.

23.45!6 43 78+In this study, we compare the performance of the re-, 9:,"!!:8;"+ #$ +cently developed Penman-Call linear model with the%&:!' , %&8(<+ =>(universally-used Millington-Quirk (+30+) and the clas-

?" )@+A6 B+,CDE

sical Buckingham-Burdine-Campbell models for vol-

FG=HIJKL*0MN" (+,B-

canic ash soils. The classical models failed to pre-./O 0B-P1QR 9+A6 2L

dict measured Dp especially at high soil-air contents*0M8G",8=!(3#4

(dry soil conditions) whereas the Penman-Call model IJKL*8G",358L*ST83+A6

captured the observed linear behavior of Dp for vol-UA "V68G",W0X+A6

canic ash soils.

83788B-P1#4A6

Key words : soil-gas di#usion coe$cient, air permea- :  B ! , %& (bility, organic matter, soil-water retention

 !"# $%&'
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L |M

YZ

N

9[\ῌ]^ _O ῌLP;ῌLQ ;<ab+,RS kWater Repellency,  WRl 3 +,=cdT>?8G", +,=c88Ref:`

eT: 7I+,UH0V W .@g3hAij+A6 =+!=.hA

X<YZ[ 7\X r8*+,U]3 generalized Clausius-Claypeyron kGCCl mnD4)!6 43^_+`a8 WR 

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hibc ^ _+DopD3"*|K+A6
 : = Generalized Clausius-Claypeyron
mnD +,=c }~+Comparison of the Penman-Call model with
the Classical Models in Predicting Soil-Gas
Di#usivity for Volcanic Ash Soils

? @5ABCDEFGHIJKLMNOPQR

jkN
O ῌAugustus C. RESURRECCIONῌZlO mῌLP;

Graduate School of Science and Engineering,¡n¢+S£)! 0 +, k12 ol p`E¤¥

Saitama University¦§q Dp ῌ D* ¨p e ©§=>+,ª«¬­

Augustus C. RESURRECCION, Ken KAWAMOTO,&ῌS7&®¯° X OA6 X +,r

Toshiko KOMATSU

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s

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phase composition, water retention and hydraulic con-

ductivity. The rate of decomposition was also measured by the ﬁne mesh litterbag study.

The experi-

mental design was nine split blocks incorporated with

Sawdust, Rice straw and Compost at *῍, +*῍, ,*῍

ῌDecagon  EC   +



57



 TDR !"#$ ECH,O-TE

and -*῍ of apparent soil volume. Mesh bags wererandomly assigned to three plots and buried below /%& '(&) ** ECH,O !"#$+,

cm from the surface soil. Hanging water column and-./01'(23) 4

centrifuge method was used to measure the water

+ ECH,O-TE 3256 "#7 8

retention curve.

9:;

Hydraulic conductivity was deter-* ECH,O-TE ;<

mined by the disc permeameter (Perroux and White,

;=>?@&) 4;AB ECH,O-TE ;C D

+322) method. Among the all amendments -*῍ in-+56 "#7;EFG

corporation reduced the solid phase as /.0*῍, /.+0῍

0 HI&)

and ..*2῍ for compost, sawdust and straw, respec-   : ECH,O-TE,  EC  

tively. Compost incorporated soil retained high soil
moisture at any suction level than straw and sawdust amended soil. Unsaturated hydraulic conduc- !"#$%&'()
*+,-#./0123456789:(;<=0tivity K (h), increased for compost and straw but decreased for sawdust incorporated soil for the samepotential used. Field saturated hydraulic conductiv-

J K LῌMNOP
QR !ST

ity (Kfs) increased by / times and - times for compostand straw amended soil.

"#UVWW0X$YZ[;\]%;&^

Key words : Biomass, decomposition, three-phase com-

W32_`) a'bc33d(\]%position, hydraulic conductivity, water re-;()*We#f;gh+,* i-ῌj.;tention/kl& mn;o00&"p;\]%
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AB6>?E~~

Biomass Decomposition and It’s E#ect On
Soil Physical and Hydraulic Properties
United Graduate School of Agricultural Sciences,
Iwate University
Moniruzzaman Khan EUSUFZAI
Faculty of Agriculture, Iwate University
Katsumi FUJIIA Field experiment was carried out to investigate
the e#ect of straw, sawdust and compost on three-R¡U¢2£VV*y3 W¤X;Y u¥Z;?@&) ¦LW¤X=d&^-§¨;AB©
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