how land use changes effect water cycle Flashcards
1
Q
deforestation
A
less interception = more discharge = more flooding
2
Q
soil drainage (agriculture)
A
removes excess water from soil(subsurface drainage)
3
Q
what is subsurface drainage
A
pipes move water downwards away from soil
4
Q
why is subsurface drainage good
A
-higher crop yield
-allows more aeration
5
Q
why is subsurface drainage bad
A
increased risk of flooding, moves water quicker than it would naturally
6
Q
water abstraction
A
water removed from ground for use
causes sinking water tables=saline intrusion
7
Q
what is saline intrustion
A
when sea water gets into groundwater stores
(water can’t be used)
8
Q
A
