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J. Jpn. Soc. Soil Phys.
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L.A. Richards 

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Reviewing classical studies in soil physics“Capillary conduction of liquids through porous mediums”
By L.A. Richards
Physics, + : -+2ῌ--- (+3-+)
Kosuke NOBORIO** School of Agriculture, Meiji University, +ῌ+ῌ+ Higashimita, Tama-ku, Kawasaki, ,+.ῌ2/1+
Key words : water movement, soil water content, matric potential, hydraulic conductivity, hysterisis+33-  + !"  #$% &  $'+31* ()*+,-".'/ 0123

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et al. +33* ( ῌ !#$ q > y `J A()*_<'/' K H&>'9/!`a%! mixed form UV/!>bc\> Richards (f )*+,-.K( +1M#; (Nvf,O Willard Gardner Pg{|9#$M> "#$7'0]8HIPcQ*+,11mfnQ)*_<'/Rh#$M q %!UV/!z y %!

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/ Celia et al. +33* ( y %! q %!¹ `ῑ!  ? ΐa%! % Richards !(NvA <z³´­®µlA%!>O ¹h( Celia etK(,y(z ,(K (y(z (zg(K*(zῐ   +*3  ,**2

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 ( T{*+ UV| Celia et al. +33*

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4e6a4@_v

(&M( f Richards /t* u0iH+" mm4e6a4 H j  ¤ .

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²@ Z7[/s =%+*!*&*+* RichardsCampbell, G.S. (+32/) : Introduction to soil physics
with BASIC. Elsevier Pub., New York.
Celia, M.A., Bouloutas, E.T. and Zarba, R.L.(+33*) : A¢@

general mass-conservative numerical solution

K#AMEA  yEfor the unsaturated ﬂow equation. Water Resour.

>Y?@=%Z7[³+ y & K,- 4e6a4@AEg+Klute, A. (+3/,) : A numerical method for solving the,- 4e6a4 ﬂow equation for water in unsaturated materi-*  y & K

/n£G!*& ´Q (   µ 
+ y & q / y & K,-

4e6a4

@A(& / Richards @[O+A Philip, +31.

¶*·n!¸jals. Soil Sci., 1- : +*/ῌ++0.
Narasimhan, T.N. (,**1) : Central ideas of Buckingham (+3*1) : century later. Vadose Zone J., 0 :021ῌ03-.
Nimmo, J.R. and Landa, E.R. (,**/) : The soil physics-    

Res., ,0 : +.2-ῌ+.30.

contributions of Edgar Buckingham. Soil Sci.

"zASoc. Am. J., 03 : -,2ῌ-.,.

: L.A. Richards Or, D. (,**+) : Who invented the tensiometer? Soil Sci.
Soc. Am J., 0/ : +ῌ-.
Philip, J.R. (+31.) : Fifty years progress in soil physics. Geoderma, +, : ,0/ῌ,2*.
Richards, L.A. (+3,2) : The usefulness of capillary potential to soil moisture and plant investigation.
J. Agric. Res., -1 : 1+3ῌ1.,.

79

Richards, L.A. (+3-+) : Capillary conduction of liquids
through porous mediums. Physics, + : -+2ῌ---.
Richards, L.A. (ed.) (+3/.) : Diagnosis and improvement of saline and alkali soils. Handbook 0*.
USDA, ARS.
 : ,**2  .  +.  : ,**2  0  +0 