Hydraulic properties of Fullerton cherty silt loam

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · Soil Sci. Soc. Am. J.; (United States)

DOI:https://doi.org/10.2136/sssaj1981.03615995004500040004x· OSTI ID:5881888

Luxmoore, R J; Grizzard, T; Patterson, M R

Soil hydraulic properties at eight depths in a Fullerton cherty silt loam (a clayey, kaolinitic, thermic Typic Paleudult) profile were derived from measurements of water content with a calibrated neutron probe and of matric potential with tensiometers during drainage of a flooded 2- by 2- by 3-m deep soil plot. Soil cores taken from the field plot were used for laboratory determinations of the retention properties. The field retention data were generally unsatisfactory, indicating significant differences in the response times and spatial resolution of the tensiometers and neutron probe. The tensiometers did not provide reliable hydraulic gradient data during drainage. Hydraulic conductivity was calculated by the instantaneous profile method and by three simple field methods, assuming a unit hydraulic gradient in all methods. There were greater differences in hydraulic characteristics between two profiles 1 m apart than there were between the alternative methods of calculation.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5881888
• Journal Information: Soil Sci. Soc. Am. J.; (United States), Journal Name: Soil Sci. Soc. Am. J.; (United States) Vol. 45:4; ISSN SSSJD
• Country of Publication: United States
• Language: English

Related Subjects

510100* -- Environment
Terrestrial-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580100 -- Geology & Hydrology-- (-1989)
COMPARATIVE EVALUATIONS
DESIGN
FIELD TESTS
FLUID MECHANICS
GROUND WATER
HYDRAULICS
HYDROGEN COMPOUNDS
HYDROLOGY
LOAM
MATHEMATICS
MEASURING INSTRUMENTS
MEASURING METHODS
MECHANICS
OXYGEN COMPOUNDS
POROSITY
RECOMMENDATIONS
SOILS
STATISTICS
TENSIOMETERS
TESTING
WATER