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South-North Water Transfer Scheme - Coggle Diagram
South-North Water Transfer Scheme
How
Two 8.5 meter diameter 7km long tunnels
Transferred down Yangtze River in southern China to the Yellow River Basin in arid northern China
Transfers along 3 routes from areas of surplus
Why
The north of China desperately needs water for, e.g., industry
China supports 20% of the world's population but only has 7% of the water supply
The north of China consumes much more water than the south, thus having a water deficit
Where
From areas of water deficit to water surplus
Transferring water over 1263km
South of China to the North of China
What
China South-North Water Transfer Scheme
Transfers 44.8 billion m^3 of water every year
Disadvantages
Large areas flooded destroying natural habitats and damaging fragile ecosystems
Water stress in the south will increase - 30 million local people during droughts won't have enough water
300,000 people forcefully evicted from home
$71 billion cost
Advantages
Allows industries to develop and bring wealth
Water irrigation to grow crops
Provides clean water for the people of Beijing and Tianjin
It should prevent over-abstraction in the north, helping to stop land subsidence