Please enable JavaScript.
Coggle requires JavaScript to display documents.
Geography C2 Unit 4(Management of River Basins) (Soft Stratigies (Land Use…
Geography C2 Unit 4(Management of River Basins)
Hard Strategies
Channelization
Pros
Risk of Flood Reduced
Lives/Property Protected
Cons
Local Ecosyetem Destroyed/Biodiversity Reduced
Natural Beauty Reduced
Limited Lifespan
High Construction/Maintenance Costs
Bank Protection
Along the River Bank
Dykes
Ripraps
Gabions
Pros
Channel Capacity Increased
At the Outer Bank
Groyne
Dam/Reservoir
Pros
Regulating River Flow
Flood Control
Improving Navigation Safety
HEP Generation
The Three Gorges Project
Tourism
Cons
Degrading Fish Habitats/Farmland
Fertility of Soil Along Lower River Course Reduced
Relocation
Soft Stratigies
Land Use Zoning
Pros
Low Cost
Promoting More Suitable Use of Land
Cons
Difficult to Move Existing Settlement
Afforestation
Pros
Vegetation Preventing Soil Erosion and Silting
Risk of Flood Reduced
Cons
Time-consuming Before Benefits Can Be Seen
Weight of Vegetation Could Increase Bank Stresses
Flood Warning System
Pros
Allowing People to be Prepared--->Damage Reduced
The Special Announcement of Flooding in Northern New Territories Warning
Cons
Limited Effect When Warnings Are Ignored
Ineffective When Flash Flood Occurs
Managed Retreat/Do Nothing
Pros
Inexpensive
Easy to Implement
Cons
Relocation
Education/Training
Pros
Improving Knowledge and Skills of Community
Legislation/Monitoring
Country Parks Ordinance
Pros
Strong Measures to Stop Destruction of Natural Habitat Along River
The Environmental Protection Department
Water Quality Monitoring Stations
Cons
Time-Consuming Before Benefits Can Be Seen
Lots of Resources Required