Sefton (Liverpool) Flashcards
Statistics and Facts
Where is Sefton located on the UK coastline?
Within sediment cell 11b in the Northwest of England.
What is the geology along the Sefton coastline like?
Sandstones, siltstones, and mudstones formed in glacial periods. Unconsolidated material prone to erosion.
In Thurstaston, Sefton what coastal management strategy failed?
Cliff drainage, as the cliffs eroded away and the pipe system collapsed.
Is the Sefton coastline becoming straighter of more pointed and by what processes?
Straighter due to the erosion of Formby point and the accretion of surrounding areas.
What type of system are sand dunes?
A dynamic system
Why are the pine plantations so damaging to the environment?
Pine needles are acidic and will decrease the pH of the soil outcompeting native species causing a decrease in biodiversity. When the fall over they have shallow and wide spreading routes so they expose the top soil to erosional processes.
Why are the pine plantations important?
They support the conservation of red squirrels.
How were the Tobacco Dunes formed?
In 1956, The British Nicotine Company began to dump 22,000 tons of waste tobacco on fields where it would dry out. Then when it was dry they would mix it in with the sand in the sand dune system.
How many homes will be affected by climate change in Sefton?
120,000 homes
What SMPs were implemented and how much did it cost?
Short term - Hold the line
Long term - Managed realignment
Cost - £383,000
How much money does tourism generate in Sefton?
£498 million
What ecosystem and cultural services are there in Sefton
Food provision (agricultural) - Reregulating soil erosion (management) - Regulating water quality (testing water - sewage & septic tanks) - Regulating water flows (low lying area so rely on pumping stations) - Regulating coastal flooding and erosion (management) - Sense of place/inspiration (escapism and sense of tranquillity) - Sense of history (Archaeology) - Recreation (Nature reserves).
What is the Sefton Special Area of Conservation (SAC)?
Protect the sand dune complex and its inhabitants e.g. the natterjack toads.
How big is the sand dune complex in Formby?
17km along the coastline and 1.5km inland.
What are NCAs?
Areas that follow the natural lines in the landscape rather than administrative boundaries.
