rivers facts Flashcards
1
Q
deforestation on hydrographs
A
dense forest use up 40% of precipitation
2
Q
river severn flooding
A
summer 2007
double average rainfall
series of depressions
3
Q
river severn flood impacts
A
human
- 14 dead
- 50000 homes no power
economic
- cost £6bill
environmental
- nesting birds dead
- fish numbers decline (habitat loss)
4
Q
river severn flood short term management
A
- £3 mill donated to affected communities
- 30000 sandbags supplied
- 98% of homes fixed by 1st aug
5
Q
river severn flood long term management
A
- removed embankment to increase river channel capacity
- £4mill floodwall built
- 100 stations to monitor water levels built
