water table


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water table

The level at which rock or any underground stratum is saturated with water. This overlies an impervious stratum.
See also: table
References in periodicals archive ?
Lowering the water table improves field trafficability and timeliness of crop management operations such as field preparation, planting, and harvesting, and can extend the growing season by allowing earlier access to the field.
The study area was subdivided for installation of three water table depth and irrigation system treatment combinations: 45 cm (18 in) deep water table with conventional seepage subirrigation (Seep-45), 45 cm (18 in) deep water table with fully-enclosed subirrgation system (FES-45) and 60 cm (24 in) water table with fully-enclosed subirrgation system (FES-60).
The USGS looked at projected changes to the water table and groundwater inundation in response to sea level rises of two, four and six feet.
Quadratic terms were included for water-filled porosity and depth to water table because of the curvilinear responses expected.
The DEM can be used to estimate the depth of water table in aquifer systems and predict that the topography of earth effects the depth of water table and they are interrelated [4].
It will carry out the design of the wastewater treatment and the soil and water table decontamination, write the tender documentation, perform the design review of the plans and documents submitted by the selected contractor, and finally supervise the works.
As a result, pathogens can be transported rapidly with little attenuation or filtration below the water table (McCoy & Hagedorn, 1979).
Lester Brown, head of the Earth Policy Institute in Washington, in a new essay has said that 18 nations, constituting 50 percent of world's population, are pumping underground water tables to the point - known as "peak water" - where they don't get replenished, which has resulted in their harvests decreasing each year, the Guardian reported.
Poor drainage is detrimental to crops and degrades soil quality [16] Subsurface drainage improves the productivity of poorly drained soils by lowering the water table, creating a deeper aerobic zone [3] and enabling faster soil drying and improving root zone soil layer condition [14].
The water table has been going down by an average of 3 feet every year for the past three decades.
In normal summers the water table drops dramatically before rising again through October, November and December.