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03.08 What is Happening to the Sand?—Lesson

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kimberly lopez

on 10 June 2014

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Transcript of 03.08 What is Happening to the Sand?—Lesson

pros && cons
pros && cons
pros && cons
By Kimberly Lopez
beach re nourishment
Cons of beach re nourishment :
Sand on the upper part of the beach will be exposed to wind erosion.
The deposits may cover exsisting dune plants.
Any sand or gravel that is not a close match to the sand originally on the beach may disturb communities of invertabrates and fish.

pros of beach re nourishment :
Increases the volume of the sand on the beach.
Enhances the natural recovery of the dunes.
Creates more area for recreational purposes.

The width of the upper part of the beach will become larger, therefore increasing tourist attraction.
New dunes may develop in the lee of the breakwater.
The structure allows the dune process to keep going.

Erosion will continue to happen in the lee of the breakwater for several years after the construction.
Causes erosion of downdrift stretches on beaches.
Dangerous for anyone that may be standing on them in case of extreme high tides drifting in.
Causes unwanted odors, unsafe beach areas, and build up of jetsam and seaweed.
Tuesday, June 10, 2014
Vol XCIII, No. 311
pros && cons

Types of Erosion Control
The intention of the jetty is to prevent sediment lacking areas from erosion.
Big tourist attraction for recreation purposes.

They make erosion on beaches worse.
Because they make erosion worse, more shoreline stabilizations are needed
Planting of dune grasses and plants
I think that planting dune grasses and other plants is the most effective way to help the ongoing problem with erosion. I think that it is the best way because it is using the environment to help fix the environment, which makes it not harmful at all to the beaches. Although the planting does not fix the erosion problem right from the start, it makes the dunes stronger and stronger as more erosion tries to push it's way towards those dunes. The stronger the dunes become, the more they will be able to withstand the pressure of the erosion.
03.08 What is Happening to the Sand?—Lesson
pros :New grass and plants will help boost restoration without ruining the environment on the beach.
The grass catches the sand that the wind blows that causes erosion.
No harmful damage will happen to the environment.
This method does not fix erosion directly.
Taking plants from other dunes can cause increased local erosion.
Construction of fences with prohibit areas of use from the beach.
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