TY - JOUR
T1 - Post‐Irrigation Movement of Soil Water
T2 - 1. Redistribution
AU - Gardner, W. R.
AU - Hillel, D.
AU - Benyamini, Y.
PY - 1970/6
Y1 - 1970/6
N2 - Water content measurements by γ‐ray attenuation in soil columns were made during redistribution following irrigation. Approximate solutions of the unsaturated flow equation are derived that describe the water content above the initial wetting front as a function of time. For times sufficiently large, these solutions reduce to the frequently used empirical expression W = a t−b, where W is soil water content, t is time, and a and b are constants. These constants can thus be related to the capillary conductivity and soil water diffusivity.
AB - Water content measurements by γ‐ray attenuation in soil columns were made during redistribution following irrigation. Approximate solutions of the unsaturated flow equation are derived that describe the water content above the initial wetting front as a function of time. For times sufficiently large, these solutions reduce to the frequently used empirical expression W = a t−b, where W is soil water content, t is time, and a and b are constants. These constants can thus be related to the capillary conductivity and soil water diffusivity.
UR - http://www.scopus.com/inward/record.url?scp=0001369076&partnerID=8YFLogxK
U2 - 10.1029/WR006i003p00851
DO - 10.1029/WR006i003p00851
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AN - SCOPUS:0001369076
SN - 0043-1397
VL - 6
SP - 851
EP - 861
JO - Water Resources Research
JF - Water Resources Research
IS - 3
ER -