Sandbanks

Question 1

Why protect sandbanks?

Answer 1

Shelter Poole harbour (ferries and goods movement)
Shelters Poole harbour (watersports)
Tourism (11.2 visit the Bournemouth and Poole area, blue flag award)
Local jobs(Sandbanks and Haven Hotel)
Property income (average house over 900000 most expensive in UK)

Question 2

Impact of climate change

Answer 2

Rise of 0.6m in 100 years
£18 mill property damage in next 20 years if no management
Could over top centre of spit and cause damage to harbour bc no protection

Question 3

Beach recharge

Answer 3

Sand from pool harbour so keeps safe depths for navigation
1.5 million cubic meters of beach material added across 2 years
Funded by department for environment, food and rural affairs

Question 4

Rock groynes

Answer 4

Stop LSD and builds up a wide beach

Stop sedimentation of harbour entrance so enables shipping lanes to keep open

Ecological benefits bc they are colonised by algae and lichens then crabs and other life forms. Improved diversity and key part of succession

Land would erode back 1.6m a year if not for groynes causing bechs to absorb wave action

However, computer modelling shows little difference in cost between beach replenishment and groynes

Question 5

Working with nature

Answer 5

Change over time
New technique to move sand further out to sea and it is moved in naturally to the coastline
Cheaper (£3m2 Vs £20 m2 when rainbowing)
Studland and Godlingston heath natural reserve

Question 6

Failures

Answer 6

Sea level rise
Increased tourist destruction of area
Erosion of Barton cliffs

Question 7

Erosion if Barton cliffs

Answer 7

On East coast
Redirection of prominent LSD chasing sediment starvation
100m promenade eroded