pickering beck Flashcards
(13 cards)
1
Q
where is pickering beck located
A
- runs through north Yorkshire
- follows a course alongside Yorkshire moors railway
- approaches town of pickering from the north
2
Q
catchment of the beck is..
A
68km
3
Q
the beck flooded the town in..
A
1999, 2000, 2007
4
Q
in the 2007 flood..
A
- 85 buildings were flooded
- main A170 road flooded
- damage cost of £2.1billion
5
Q
natural causes of flooding include..
A
- rainfall
- soil type (peat is quickly saturated, gritstone is impermeable)
- relief of land (steep basin so floods quicker)
6
Q
human causes of flooding are..
A
- agriculture: animals constantly trampling ground so ground becomes less permeable
- ploughing creates easier surface runoff routes
- urbanisation = impermeable ground
- vegetation removal
7
Q
the Beck has failed to meet ‘good water status’ in terms of quality, why?
A
farming and agriculture has had a negative impact
8
Q
some management strategies used?
A
- low level bunds
- floodplain woodlands
- restoration of large wood debris dam
- no burn zones
- educating locals/farmers
9
Q
construction of low level bunds
A
- bunds put in are 2m high
- have added an additional 120,000 cubic metres of water storage to the Beck
10
Q
floodplain woodlands
advantages? disadvantages?
A
- intercept a lot of water and increase infiltration and transpiration
- doesn’t harm environment
- takes a long time to grow trees
- not the most effective way
11
Q
restoration of wood debris dams
advantages? disadvantages?
A
- slow the water flow down
- all time is longer so reduces flooding
- natural
- doens’t have a massive impact
12
Q
no burn zones
advantages? disadvantages?
A
- increases interception and transpiration so slows down flooding
- not easy to monitor
- limited impact
13
Q
educating locals
advantages? disadvantages?
A
- people are more aware of ways which they can help or protect their land
- not everyone will listen
