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Hydraulic Gradients Across Simulated Rain‐Formed Soil Surface Seals
Author(s) -
Sharma P. P.,
Gantzer C. J.,
Blake G. R.
Publication year - 1981
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/sssaj1981.03615995004500060005x
Subject(s) - infiltration (hvac) , tensiometer (surface tension) , water potential , soil water , environmental science , soil science , hydrology (agriculture) , geology , geotechnical engineering , materials science , surface tension , physics , quantum mechanics , composite material
Hydraulic potentials across surface seals on packed soil columns were measured with a tensiometer‐transducer‐data logger system. Matric potential drops during steady‐state infiltration across seals formed by simulated rainfall on 12 different soils ranged from 6.4 to 14.2 cm of water. The matric potential that developed just below the seal during steady‐state infiltration was nearly constant for a considerable depth range in the soil column. Cultural factors determining aggregate stability were found to be more significant than textural factors in influencing hydraulic properties of surface seals.