Catchment and River Management (Grade 12 NSC Matric Geography): Flashcards
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Practise the cards
10 cards from this deck
Catchment area (definition)
Catchment area (definition)
Area of land draining water into a particular river system
Alternative name for river capture
Alternative name for river capture
Stream piracy
Main process causing river capture
Main process causing river capture
Headward erosion
Captor river (in river capture)
Captor river (in river capture)
Stronger river that captures water from another system
Wind gap (river capture feature)
Wind gap (river capture feature)
Dry valley left where original river used to flow
Elbow of capture
Elbow of capture
Sharp bend where river changes direction after being captured
Misfit stream
Misfit stream
Small stream in oversized valley (too big for its water)
South Africa's water status
South Africa's water status
Not water-rich; water is scarce
Alien vegetation impact on water
Alien vegetation impact on water
Consume large amounts of water quickly in river zones
How dams affect rivers
How dams affect rivers
Alter natural flow patterns and seasonal flood cycles