River Ribble Flashcards

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1
Q

Rock type

A

upper course of Ribble is Millstone Grit with few pore spaces and therefore increased overland flow

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2
Q

soil

A

peat in the upper course with is a major source of groundwater, slowing down increase in discharge

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3
Q

shape and size of db

A

elongated basin which results in water taking more time to reach channel, basin is also very big with extensive floodplains

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4
Q

rainfall

A

rainfall is evenly distributed around the year with infiltration excess overland flow after summer thunderstorms. Saturation excess flooding common at end of winter

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5
Q

urbanisation

A

tributary runs through Burnley suburb, with rapid discharge as water is directed into river

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6
Q

agriculture

A

lower Ribble, overstocking with sheep has led to vegetation degradation resulting in increased soil erosion. Peat cover has been lost due to fires

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