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Capillary Conductivity and Soil Water Diffusivity Values from Vertical Soil Columns 1
Author(s) -
Flocker W. J.,
Yamaguchi M.,
Nielsen D. R.
Publication year - 1968
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1968.00021962006000060006x
Subject(s) - loam , hydraulic conductivity , thermal diffusivity , soil water , capillary action , soil science , water content , attenuation , chemistry , capillary pressure , environmental science , materials science , geology , porosity , geotechnical engineering , porous medium , optics , physics , quantum mechanics , composite material , organic chemistry
Water evaporated from vertical columns of Yolo loam, 100 cm long, for 200 days at ambient temperatures of 10, 20, or 30C ± 1C. Distribution of soil water was determined by gamma‐ray attenuation at 5‐cm intervals, concomitantly with determinations of soil water pressure. Values of capillary conductivity based upon measured fluxes and hydraulic gradients are presented, along with values of diffusivity based upon fluxes and water content gradients.