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

The term used for Governments allocating areas of land to different uses, according to their level of flood risk.

Flood Plain Zoning

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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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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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What is an embankment (manmade levee)

High banks built on/near river banks

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What is the term for extra channels built next to rivers or leading from them and an advantage?

Term: Flood Relief Channels / Adv: The river can be re-routed to by-pass settlements under threat.

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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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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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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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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 the term for barriers that hold back water and the term for the artificial lake behind it?

Dam & Reservoir

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A disadvantage of embankments (manmade levees)

Embankments increase channel capacity, so if they fail a large volume of water is released suddenly causing even more damage.

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A disadvantage of dams and reservoirs.

Sediment is trapped behind the dam, reducing the amount carried downstream to floodplains, which lowers alluvium deposition, therefore reduces soil fertility.

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