Sandbanks Flashcards
Why protect sandbanks?
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)
Impact of climate change
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
Beach recharge
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
Rock groynes
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
Working with nature
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
Failures
Sea level rise
Increased tourist destruction of area
Erosion of Barton cliffs
Erosion if Barton cliffs
On East coast
Redirection of prominent LSD chasing sediment starvation
100m promenade eroded