Water Extraction Flashcards
1
Q
What river
A
Colorado river in LA
2
Q
Impacts
A
- 50% fall in river
- farming in Sierra Nevada severely impacted
- loss of 10,000 acres of farmland
3
Q
whats the name of the source for la
A
Colorado River Aqueduct
4
Q
what happened to the london aquifer
A
- water table dropped 90m
- 20th century it recovered but began to threaten houses so it was tapped
- 10% reduction in the flow
5
Q
aquifer vs artesian basin
A
aquifer - body of porous rock or sediment saturated with groundwater
artesian basin - low-lying region where groundwater is cramped under pressure from surrounding layers of rock
(aquifer in syncline)
6
Q
What is recharge
A
Recharge is the amount of time it takes for a source of water to recover after deficit
7
Q
How important in groundwater
A
USA uses 53bn gallons of groundwater per for agriculture alone
