Unconfined aquifers

Unconfined aquifers

An aquifer in which the groundwater table is free to rise and fall according to hydraulic gradients. Drainage, either natural or artificial, beneath the surface of the earth.

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Part of Speech: noun
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Industry/Domain: Agriculture
Category: Irrigation
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Related terms

unconfined aquifer

Weather; Meteorology

Aquifer with an upper boundary defined by the water table and the surface at atmospheric pressure.

unconfined aquifer

Environment; Environmental conservation

An aquifer in which the upper boundary is the water table.

unconfined aquifer

Geography; Physical geography

Aquifer that is not restricted by impervious layers of rock.

unconfined aquifers

Agriculture; Irrigation

An aquifer in which the groundwater table is free to rise and fall according to hydraulic gradients. Drainage, either natural or artificial, beneath the surface of the earth.

unconfined aquifer

Engineering; Civil engineering

An aquifer containing water that is not under pressure; the water level in a well is the same as the water table outside the well. An aquifer that discharges and recharges with an ...

unconfined aquifer

Agricultural chemicals; Pesticides

An aquifer containing water that is not under pressure; the water level in a well is the same as the water table outside the well.

Saal an der Donau

Agriculture; Anatomy; Farm machinery & equipment; General agriculture; Irrigation

Saal an der Donau est une commune de Bavière (Allemagne), située dans l'arrondissement de Kelheim, dans le district de Basse-Bavière.

application efficiency

Agriculture; Irrigation

The ratio of the water that is absorbed and stored in the root zone for later use by the plants to the total water applied.

actual evapotranspiration

Agriculture; Irrigation

The actual rate of water uptake by the plant which is determined by the level of available water in the soil.

available water capacity (AWC)

Agriculture; Irrigation

The portion of water in a soil that can be readily absorbed by plant roots. It is the amount of water between field capacity and permanent wilting point. It's usually measured ...

available water (aw)

Agriculture; Irrigation

The portion of water in a soil that can be readily absorbed by plant roots. It is the amount of water between field capacity and permanent wilting point. It's usually measured ...

backflow prevention device

Agriculture; Irrigation

A mechanical device used to prevent the flow of water from the water distribution system back to the water source and may be required by law. It's similar to anti-siphon valves.