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Morphology and Water Regime of a Dothan Soil
Author(s) -
Guthrie R. L.,
Hajek B. F.
Publication year - 1979
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/sssaj1979.03615995004300010027x
Subject(s) - water table , piezometer , geology , hydrology (agriculture) , table (database) , groundwater , saturation (graph theory) , precipitation , horizon , soil water , water level , soil science , environmental science , aquifer , geography , geotechnical engineering , mathematics , geometry , meteorology , combinatorics , computer science , data mining , cartography
The water regime in a Dothan soil was characterized by installing piezometers at 137‐, 183‐, and 285‐cm depths. Monthly water table measurements differed for each piezometer throughout a 4‐year study period, indicating a perched water table. There was a water table at the greatest depth on only five occasions during the study period. On all but a few occasions, a water table was encountered at the two shallower depths. Morphological properties and seasonal precipitation were related to the water regime. The perched water table fluctuated in a continuous zone of saturation in the B horizon above the horizons containing appreciable amounts of plinthite. A discontinuous zone of saturation is bounded on the bottom by the B3 horizon. The piezometer that had perforations in the C horizon showed no water table, which indicated that a “dry” zone exists between the perched and regional ground‐water tables. Fluctuations in the depth to perched water corresponded to seasonal precipitation patterns.