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Air encapsulation during infiltration

January 1, 1988

A series of field and laboratory experiments were performed to measure the effects of air encapsulation within the soil's transmission zone upon several infiltration properties. In the field, infiltration rates were measured using a double-cap infiltrometer and soil-water contents were measured using time-domain reflectometry (TDR). In the laboratory, infiltration experiments were peformed using repacked soil columns using TDR and CO 2 flooding. Results suggest that a significant portion of the total encapsulated air resided in interconnected pores within the soil's transmission zone. For the time scale considered, this residual air caused the effective hydraulic conductivity of the transmission zone to remain at a level no greater than 20% of the saturated hydraulic conductivity of the soil. -from Authors

Publication Year 1988
Title Air encapsulation during infiltration
Authors J. Constantz, W.N. Herkelrath, F. Murphy
Publication Type Article
Publication Subtype Journal Article
Series Title Soil Science Society of America Journal
Index ID 70014714
Record Source USGS Publications Warehouse