Coastal Management Strategies

What do Groynes do?

• They create wide beaches that...

                              ...Slow waves

What do the wide beaches that slow waves do?

• They protect from erosion                                                

Groynes make beaches narrower (??? :/)...

Why is this a bad thing?

• Because narrow beaches do not protect coasts well 

What are Gabions?

Gabions are...

• Rock filled cages

Where are Gabions built?

• Gabions are built at the foot of cliffs 

Disadvantages?          

• They are visually displeasing ----> ugly 

What does beach replenishment do?

• Creates wider beaches to slow... the waves...

However...

Taking material from the seabed can kill organisms 

• Popular tourist destintions                

(flooding = loss of tourists)

• Coastal flooding damages agricultural land          

How does coastal flooding damage agricultural land?

...because high salt levels damage soil & reduces salt fertility    + fall in property prices

• Deaths caused by floods      
• Houses near cliffs  could collapse into the sea 

• Loss of jobs due to damaged equiptment/buildings 

• Damage to roads near cliffs                           

Waters of high salt content        can kill organisms  in an

ecosystem

What are Groynes?

• Groynes are wooden fences 

What do Groynes do?

• Groynes trap material transported by longshore drift