soft engineering Flashcards

1
Q

what is soft engineering?

A

managing erosion by working with natural processes to help restore beaches/ecosystem and resuce erosion.

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2
Q

what are the 3 soft engineering strategies?

A

beach nourishment, reprofiling and dune regeneration.

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3
Q

what is beach nourishment?

A

the addition of new material to a beach to make it wider.

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4
Q

what are some positives and negatives of beach nourishment?

A

positives
-relatively cheap.
-increases tourism.
negatives
-needs replenishing regularly.
-groynes useful to keep the material in place.

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5
Q

what is reprofiling?

A

the redistribution of sediment from the lower section of the beach to the high section (increases gradient).

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6
Q

what are some positives and negatives of reprofiling?

A

positives
-theyre cheap.
-reduces wave energy/erosion.
negative
-only works when wave energy is low.
-needs to be redone regularly.

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7
Q

what is dune regeneration?

A

the action taken to build up dunes and increase vegetation on them, includes planting marram grsss fencing and boardwalks.

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8
Q

what are some positives and negatives of dune regeneration?

A

positives
-its quite cheap.
-maintains a coastal habitat.
negatives
-takes a long time.
-can hinder tourism.

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9
Q

what are some positives and negatives of soft engineering?

A

positives
-is cheaper in the short term.
-more sustainable.
-looks more natural.
negatives
-needs more maintenance.
-not as effective at reducing erosion.

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