River Ribble
- Created by: 3idnnsll999
- Created on: 28-04-15 21:20
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- River Ribble
- Rock Type
- Millstone Grit
- Impermeable so overland flow is rapid
- Carboniferous Limestone
- Permeable so throughflow reaches river
- Millstone Grit
- Rainfall
- 1775mm at the source
- 890mm at the estuary
- Andecedent Rainfall
- Infiltration increase
- Urbanisation
- Urbanised areas e.g Burnley
- Agriculture
- Overstockingwith sheep
- Especially in the FOREST OF BOWLAND
- Soil erosion = faster overland flow
- Burning of heather for grouse
- Peat cover lost
- Overstockingwith sheep
- Shape & Size of Basin
- Elongated
- Extensive flood plains in the upper parts
- Due to iso-static change
- Rock Type
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