Managing flood risk | Baamboozle - Baamboozle | The Most Fun Classroom Games!

What is the advantage of channelisation?

Reduces channel friction, increasing velocity (water speed) increasing discharge which reduces the risk of flooding in that area.

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How does planting trees (afforestation) act as a flood managment?

The trees intercept the rain water reducing surface runoff

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What is an advantage flood plain zoning?

Aims to prevent the development of homes/businesses in high risk areas.

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Give 2 advantages of dams and reservoirs.

1. HEP (Hydroelectric Power) 2. Water Supply 3. Water Sports

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What is the term for deepening and/or straightening the the river?

Channelisation

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A disadvantage of Flood Abatement

Coniferous trees are often planted as they grow fast but they increase soil acidity through needle litter, which can reduce soil fertility therefore affecting

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An advantage of embankments (man made levees)

They can have walkways or roads on top of them increasing the amenity facilities in the area-multi purpose.

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What is an advantage of washlands?

Safe place for floodwater preventing it from affecting valuable areas or Deposited alluvium is fertile which may be useful for agricultural use.

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What is the name for an area of the flood plain that are allowed to flood and one disadvantage?

Term: Washland / Disad: Land that could have been developed on, for example, for housing is unusable.

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What are the disadvantages of channelisation?

Increasing the discharge (amount of water flowing past at a given time) can threaten further downstream after heavy rain.

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What is the term for plating trees as a flood management technique

Flood Abatement (Afforestation)

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An advantage of River restoration (restoring the river's original course)

Can slow rivers down preventing flooding downstream by removing levees & restoring meanders or more attractive or habitats for wild life.

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