Water Resources

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Aquiclude
Rock that will not hold water or allow its movement i.e. they are non-porous and impermeable
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Aquifer
Rocks that can hold water. Aquifers are called ''confined'' if they are surrounded and contained by aquitards and aquicludes. Unconfined are not contained by aquitards and aquicludes and instead their upper limit is the water table.
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Groundwater
Groundwater is water stored under the ground. Water can be held in porous rocks called aquifers. With increasing demand for water, groundwater is being demanded more and more.
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Water table
The boundary between saturated and unsaturated ground.
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Salinisation
An increase in the salinity (salt content) of water. Salinisation may happen if more water is being removed from an aquifer than is being replaced causing the concentration of salt to increase.
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Saltwater intrusion
When aquifers near the coast are depleted and saltwater leaks into the aquifer changing its salinity.
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Subcidence
This is the collapsing of ground. Ground may collapse if water has been abstracted (removed) from an aquifer underground. Parts of Mexico City are subsiding because of over abstraction.
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Economic water scarcity
This is when water is available, but for some reason it is inaccessible or unusable. This might because it is groundwater that is expensive to extract or that the cost of transporting it is too expensive or simply that the supply of water has become
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Physical water scarcity
This is when there is not enough water available. The most common reason for this is low precipitation rate
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Drought
is is when the demand for water exceeds the supply of water causing water shortages.
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Other cards in this set

Card 2

Front

Rocks that can hold water. Aquifers are called ''confined'' if they are surrounded and contained by aquitards and aquicludes. Unconfined are not contained by aquitards and aquicludes and instead their upper limit is the water table.

Back

Aquifer

Card 3

Front

Groundwater is water stored under the ground. Water can be held in porous rocks called aquifers. With increasing demand for water, groundwater is being demanded more and more.

Back

Preview of the back of card 3

Card 4

Front

The boundary between saturated and unsaturated ground.

Back

Preview of the back of card 4

Card 5

Front

An increase in the salinity (salt content) of water. Salinisation may happen if more water is being removed from an aquifer than is being replaced causing the concentration of salt to increase.

Back

Preview of the back of card 5
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