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Soil Perfusion under Controlled Conditions of Soil Moisture Content and Soil Atmospheric Composition
Author(s) -
Wildung R. E.,
Biggar J. W.,
Chesters G.
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/sssaj1969.03615995003300050051x
Subject(s) - water content , environmental science , soil science , composition (language) , geology , geotechnical engineering , philosophy , linguistics
A new soil perfusion system is described which allows the continuous recycling of an aqueous solution through a soil column under controlled environmental conditions. The system consists essentially of a perforated inner column for soil, jacketed by an outer column in which constant air pressure is maintained. Precise control of soil moisture content and soil atmospheric composition during perfusion is accomplished by regulation of pressure and composition of gases surrounding the soil column.