Abstraction methods Flashcards
1
Q
Places to abstract from
A
Rivers and lakes
Reservoirs
Aquifers
2
Q
Rivers and lakes
Considerations
A
Annual discharge must be adequate
Variation in flow
Water quality
Other uses
3
Q
Rivers and lakes
Over abstraction causes
A
Increased concentration of pollutants
Decreased discharge
Ecosystem disturbed
4
Q
Reservoirs
Considerations
A
Topography Impermeable geology Large catchment Adequate upstream water supply Reliable rainfall
5
Q
Reservoirs
Over abstraction causes
A
Sedimentation
Micro climates
Changes downstream
Habitat change
6
Q
Aquifers
Considerations
A
Type of geology
Must be permeable to allow recharge
7
Q
Aquifers
Over abstraction causes
A
Subsidence Habitat loss Dry soils Loss of wetland Lowered water table Vegetation change
