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A-Level Geography - Water Cycle > what affects flows in the drainage basin > Flashcards

Flashcards in what affects flows in the drainage basin Deck (3)
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1
Q

slope angle

A

very steep slopes encourage surface run off

2
Q

soil porosity

A

sand has an infiltration rate of 3-12mm/hour

less permeable clays have an infiltration rate of 0-4mm/hour

3
Q

duration of rainfall

A

infiltration capacity decreases with time through a period of rainfall until a low value is reached