7.4 Managing the coastal environment

1) coastal management involves ways to protect human development but ot take in careful consideration of how it will effect the environment.
2) sea walls, breakwaters, Groynes
3) Sea walls- advantages- stop erosion of the coastline and protect property
disadvantages- often replace foredune, which is an essential part of beach erosion
Breakwaters- stabilise river entrances and provide safe access for boating by keeping the river entrance clear of sand built up
Disadvantages- can act to dramatically alter patterns of erosion, transportation and deposition of sand along the coastline.
Groynes- Advantages- to catch sand and make beaches wider
Disadvantages- however sand tends to accumulate on one side only, creating a different beach from its natural shape.
4) you need to keep the balance between human development and the environment.