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to fill pores. Pores at the base of the capillary fringe are filled with water due to tension saturation. This saturated portion of the capillary fringe is less than the total capillary rise because of the presence of a mix in pore size. If the pore size is small and relatively uniform, it is
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Some workers restrict their definition of the capillary fringe only to the tension-saturated base portion and exclude it wholly from the vadose zone. This is more common among workers addressing solute transport and water flow. Others define the capillary fringe as including both the
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possible that soils can be completely saturated with water for several feet above the water table. Alternately, when the pore size is large, the saturated portion will extend only a few inches above the water table. Capillary action supports a
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tension-saturated and unsaturated portions. This is the preferred definition among workers dealing with the remediation of salt affected soils as well as those dealing with the vapor phase of soil processes and
64:. It is not uncommon to see the capillary fringe treated as a boundary condition separating the water table from the unsaturated zone, without defining it as a significant part of either.
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The capillary fringe is the zone immediately above the water table in which all or some of the interstices are filled with water...
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Cross-section of a hillslope depicting the vadose zone, capillary fringe, water table, and saturated zone
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above the saturated base, within which water content decreases with distance above the water table. In
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At the top of the capillary fringe, saturation by water is now limited to only the micropores
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with a wide range in pore size, the unsaturated zone can be several times thicker than the
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Subsurface layer in which groundwater seeps up from a water table by capillary action
210:"Definitions of Selected Ground-Water Terms - Revisions and Conceptual Refinements"
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163:. Chapter 2: Origin, Occurrence, and Movement of Groundwater. Archived from
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The boundary between the unsaturated zone and the saturated zone....
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Ground-Water
Remediation Technologies Analysis Center GWRTAC
76: – Zone between the saturated and unsaturated zones
88: – Term used in several scientific disciplines
100: – Column of one fluid moving through another
219:. US Department of Interior. 1988. Archived from
157:"Origin, Occurrence and Movement of Ground Water"
106: – Unsaturated aquifer above the water table
94: – Zone in an aquifer below the water table
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189:"Introduction to Basic Ground-Water Flow"
161:Groundwater Resources of British Columbia
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217:Geological Survey Water Supply Paper
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125:"Glossary of Hydrogeologic Terms"
31:is the subsurface layer in which
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176:...thin saturated layer...
80:Infiltration (hydrology)
98:Plume (fluid dynamics)
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248:"Unsaturated Zone"
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74:Epiphreatic zone
41:capillary action
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256:. Retrieved
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104:Vadose zone
46:vadose zone
37:water table
33:groundwater
276:Categories
258:2019-01-12
230:2019-01-12
171:2019-01-12
139:2019-01-12
111:References
292:Hydrology
282:Aquifers
193:earthDRx
86:Phreatic
68:See also
302:Water
224:(PDF)
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50:soils
27:The
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