1. Drainage basins and rivers
Chapter 17
Drainage basins and rivers

3. The hydrological cycle

6. Drainage basin

8. Velocity

9. Discharge

10. Gradient of a river

11. Vegetation

12. Permeability of rocks

15. Load

16. Wetted perimeter

17. Transportation

19. solution

22. River erosion

25. River erosion

26. Waterfalls

29. Meander

31. Case studies

33. Case study

35. Saturday, May 20, :57 AM The Associated Press BEIJING (AP) Construction crews finished the dam of the world's largest hydroelectric project on Saturday, state media reported.The construction of the 607-foot high, 1.4-mile long dam across the Yangtze River does not fully complete the hugely controversial Three Gorges Dam project.The last 12 of the dam's 26 generators are to be installed over the next two years, said the China Yangtze River Three Gorges Project Development Corp. The project is set to be completed in 2008, a year ahead of schedule.Begun in 1993, the project has steamed ahead with the backing of the communist leadership despite objections to its $22 billion cost and environmental and social impact. More than 1.3 million people have been relocated to make way for the dam and its reservoir. Environmentalists and engineers have warned that the reservoir risks becoming polluted with waste from cities and towns upriver, many of which lack adequate sewage treatment plants.