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WATER FLOW IN SOIL MACROPORES I. AN EXPERIMENTAL APPROACH
Author(s) -
GERMANN P.,
BEVEN K.
Publication year - 1981
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1981.tb01681.x
Subject(s) - macropore , hydraulic conductivity , infiltration (hvac) , saturation (graph theory) , soil science , environmental science , soil water , water flow , hydrology (agriculture) , geology , geotechnical engineering , chemistry , materials science , mathematics , composite material , mesoporous material , biochemistry , combinatorics , catalysis
Summary A method is proposed by which the volume of the macropore system and its effect on the infiltration capacity can be estimated using a soil water potential concept. The macropore systems of two large and undisturbed soil samples were investigated. The volumes of macropores were 0.01 and 0.045 of the sample volumes, respectively. When the samples were drained from full saturation to the point where it may be assumed that there was no more water in the macropore system, the hydraulic conductivity decreased by factors of 18 and 4.3 respectively.
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