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Using pore sizes as described in soil profile descriptions to estimate infiltration rate and saturated hydraulic conductivity
Author(s) -
Messing I.,
Iwald J.,
Lindgren D.,
Lindgren K.,
Nguyen L.,
Hai T.S.
Publication year - 2005
Publication title -
soil use and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.709
H-Index - 81
eISSN - 1475-2743
pISSN - 0266-0032
DOI - 10.1111/j.1475-2743.2005.tb00399.x
Subject(s) - macropore , hydraulic conductivity , loam , infiltration (hvac) , soil science , transect , soil water , soil horizon , geology , bulk density , hydrology (agriculture) , environmental science , geotechnical engineering , chemistry , materials science , mesoporous material , biochemistry , oceanography , composite material , catalysis
Abstract This study tests relationships between, on the one hand, field‐saturated infiltration rate into the uppermost sloping soil layer (K fsi and field‐saturated hydraulic conductivity in soil horizons (K fsh ) and, on the other hand, in situ determined macropore sizes in soil profile descriptions. It was carried out at six locations along a transect on a slope with loamy soils. The macropores were classified into representative size indices based on pore diameters (P td ) and pore areas (P ta ). A strong relationship was found between K fsi and P ta , and between K fsh and P td . The approach is promising and the methodology could be further developed with the aim of generalizing the functional relationships, so that K fs can be estimated in areas where soil survey databases contain information on pore size abundance but lack K fs values.