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Comparison of Computed and Measured Moisture Redistribution Following Infiltration
Author(s) -
Staple W. J.
Publication year - 1969
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1969.03615995003300060015x
Subject(s) - infiltration (hvac) , wetting , soil water , moisture , redistribution (election) , water content , soil science , materials science , hysteresis , surface tension , environmental science , mechanics , geotechnical engineering , thermodynamics , geology , composite material , physics , quantum mechanics , politics , political science , law
Redistribution of water was measured in three soils following two different initial amounts of infiltration. The measured redistribution profiles were compared with those computed from the flow equation taking into account hysteresis in the drying tension vs water content relationship. Agreement between measured and computed moisture profiles was considered satisfactory. A procedure was outlined for determining wetting diffusivities and conductivities in the wetting front on the basis of soil moisture profiles obtained during redistribution. The different shapes of the drying scanning tension curves provided some insight into the differences in particle size distribution that influence the water‐holding capacity of soils.