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Field Measurement of Air‐Entry and Water‐Entry Soil Water Pressure Heads
Author(s) -
Fallow D. J.,
Elrick D. E.
Publication year - 1996
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/sssaj1996.03615995006000040011x
Subject(s) - infiltrometer , soil water , infiltration (hvac) , water pressure , pressure head , environmental science , atmospheric pressure , soil science , hydrology (agriculture) , geotechnical engineering , materials science , geology , environmental engineering , hydraulic conductivity , engineering , composite material , mechanical engineering , oceanography
An effective field measurement of the air‐entry and water‐entry soil water pressure heads gives an improved description of the hydraulic properties of soils. One study obtained measurements of air‐entry soil water pressure heads using a modified falling head infiltrometer. This study then estimated the value of the water‐entry soils water pressure head from this value. Now direct field measurements of both the air‐entry and water‐entry soils water pressure heads can be easily obtained using an external tension bottle attached to the Guelph Pressure Infiltrometer at the conclusion of quasi‐steady state infiltration readings.