river flood risk in the uk Flashcards
facts on river flood
330000 uk properties at risk
what did flooding result in
cc-more extreme rainfall events putting people at risk
changes in land use-urban development=impermeable surfaces/increase surface runoff
increase in pop-more people affected by flooding, new developments built on floodplains
what are some hard engineering flood defences
.building dams and resiviours
.raised leeves-dredge river beds
.straightening rivers to flow faster(channelisation)
.build concrete walls
what are some soft engineering flood defences
plant trees in drainage basin
allow natural flooding
land use zonation
what are some soft engineering flood defences
plant trees in drainage basin
allow natural flooding
land use zonation
facts on sommerset
7000 hectares of land affected
600 houses
where is sommerset located
south west england
low lying/crosses several rivers
prone to flooding
what did local people complain about
flood defences werent good enough-only protected near by towns
who did people blame(sommerset)
environment agency-not dreging rivers out
farmers-poor land management
eroding soil c
