TY - JOUR
T1 - Anisotropy of unsaturated soils.
AU - Mualem, Y.
PY - 1984
Y1 - 1984
N2 - The model indicates that the degree of anisotropy of unsaturated soil may vary considerably from its value at saturation. Reducing the capillary head gradually from zero, the anisotropy factor first decreases to a minimum and then increases rapidly as the soil dries. In some cases, the anisotropy factor can reach values several orders of magnitude higher than at saturation. Soil layers with very low permeability tend to diminish anisotropy on desaturation. Conversely, large variation of the hydraulic properties of the layers would enhance anisotropy in the unsaturated state.-from Author
AB - The model indicates that the degree of anisotropy of unsaturated soil may vary considerably from its value at saturation. Reducing the capillary head gradually from zero, the anisotropy factor first decreases to a minimum and then increases rapidly as the soil dries. In some cases, the anisotropy factor can reach values several orders of magnitude higher than at saturation. Soil layers with very low permeability tend to diminish anisotropy on desaturation. Conversely, large variation of the hydraulic properties of the layers would enhance anisotropy in the unsaturated state.-from Author
UR - http://www.scopus.com/inward/record.url?scp=0021639951&partnerID=8YFLogxK
U2 - 10.2136/sssaj1984.03615995004800030007x
DO - 10.2136/sssaj1984.03615995004800030007x
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AN - SCOPUS:0021639951
SN - 0361-5995
VL - 48
SP - 505
EP - 509
JO - Soil Science Society of America Journal
JF - Soil Science Society of America Journal
IS - 3
ER -