Why in News?
China has recently completed a massive 11.18 km high-speed underwater tunnel beneath the Yangtze. This allows bullet trains to cross the river at speeds of 350 km/h, significantly boosting connectivity in the Yangtze River Economic Belt.
About Yangtze river
- Length: Approximately 6,300 kilometers (3,915 miles).
- Source: Originates in the Tibetan Plateau at Jari Hill (Tanggula Mountains).
- Path: Flows exclusively through China, passing through 11 provincial-level regions including Tibet, Sichuan, Chongqing, Hubei, and Jiangsu.
- Mouth: Empties into the East China Sea near Shanghai.
Economic & Human Impact
- GDP Engine: The Yangtze River Economic Belt accounts for over 40% of China's national GDP.
- Population Hub: Home to more than 400 million people—nearly one-third of China's entire population.
- "Granary of China": The basin produces nearly half of China’s crops, including two-thirds of its rice.
- Maritime Lifeline: It is the world’s busiest inland waterway; ports along the trunk stream handled a record 4 billion tons of cargo in late 2024/early 2025.
Engineering & Infrastructure
- Three Gorges Dam: The world's largest hydroelectric power station, providing about 11% of China's power.
- Underwater Tunnels: In addition to the new 2026 rail tunnel, the river is crossed by numerous bridges and metro lines, including Shanghai's first metro line to cross the river (April 2026).
- Connectivity: Serves as the primary artery for the "West-to-East Power Transmission" initiative.
Conservation & Challenges
- Protection Law: The Yangtze River Protection Law (effective since March 2021) was China's first legislation dedicated to a specific river basin.
- Industrial Shift: Over 97% of hazardous chemical enterprises in the river's economic belt have been relocated or closed to prevent pollution.
- Endangered Species: The river is the only habitat for the Yangtze Finless Porpoise and was the former home of the now-extinct Baiji (Yangtze River Dolphin).
- Sedimentation: Recent studies have shown that tidal energy is shifting sediment from the Great Yangtze Bank, helping to "build land" and grow the delta.
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