Hard and Soft Engineering
- Created by: poppyggggg
- Created on: 23-05-16 17:56
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- Hard Engineering
- Involves technology in order to control rivers
- Dams and resevoirs
- Controls amount of discharge and water is held back and released in a controlled way
- Very expensive
- Often used to generate hydroelectric power
- Collected sediment causes erosion downstream
- People can lose their homes for dams to be built
- Straighten Meanders
- A river channel may be made wider or deeper
- Meanders make the route longer, so if there is a flood the area will take longer to clear
- Results in more water downstream
- Man made levees
- Immediate results but can make future problems
- Soft Engineering
- Less interference and looks to work alongside natural processes
- Afforestation
- Trees are planted close to rivers which means more interception of rainwater and lower discharge
- Less surface run off
- Low cost and enhances habitat
- Trees are planted close to rivers which means more interception of rainwater and lower discharge
- Cheaper and work with environment
- Flood Warnings
- Enables people to prepare and prevent life-loss
- Might not be effective if local governments are not good (LEDC)
- Flood Plain Zoning
- Organises land so land near river is not built on
- Restricts development
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