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Recording Soil Moisture Automatically
Author(s) -
Korty B. L.,
Kohnke H.
Publication year - 1953
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/sssaj1953.03615995001700040001x
Subject(s) - watershed , potentiometer , water content , environmental science , hydrology (agriculture) , moisture , soil science , remote sensing , computer science , geology , meteorology , geography , geotechnical engineering , engineering , machine learning , voltage , electrical engineering
A method utilizing nylon blocks and an automatic recording potentiometer equipped to record resistence by means of a special ohmmeter circuit was used to follow continuously the moisture content of the soil. The information obtained was used in correlation with rainfall data to estimate the time required for water to reach various depths in the soil. The results show that water moved downward more rapidly on a watershed where conservation practices were used than on a prevailing farm practice watershed. An automatic instrument of the type used in this work that follows soil moisture conditions would be of great value in many research problems.