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Managing flood risk
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Afforestation (planting trees) aids infiltration (absorption) through what process?
Interception
What is an advantage flood plain zoning?
Aims to prevent the development of homes/businesses in high risk areas.
The term used for Governments allocating areas of land to different uses, according to their level of flood risk.
Flood Plain Zoning
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.
What is an advantage of washlands?
Safe place for floodwater preventing it from affecting valuable areas or improves the river's sedimentation process
What is the name for an area of the flood plain that are allowed to flood and one disadvantage?
Term: Washland / Disad: Limits landuse e.g. farming
A disadvantage of dams and reservoirs.
Expensive. Displaces people. Ruin the environment. Algae growth
Give 2 advantages of dams and reservoirs.
1. HEP (Hydroelectric Power) 2. Water Supply 3. Water Sports
What is the term for barriers that hold back water in an artificial lake?
Dam & Reservoir
What is a disadvantage of levees?
Expensive or unsightly and not often needed
What is the term for extra channels built next to rivers or leading from them and an advantage?
Term: Flood Relief Channels / Adv: Prevents overflow by accommodating high flow
What are the disadvantages of channelisation?
May put other places at risk/does not look natural
What is the advantage of channelisation?
It allows the water to move quicker (away from places at risk)
What is the term for deepening and/or straightening the the river?
Channelisation
A disadvantage of levees
Burst/overflow and water becomes trapped causing even more damage
An advantage of levees/embankments
Earth/grass-blends in with the environment or Prevents flooding of houses/land
What is a levee
High banks built on/near river banks
What is another word for an embankment?
Levee


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