The staff workers monitor the water level rising of the Three Gorges Reservoir on the Yangtze River in central China's Hubei Province Sept. 20, 2006. The second phase of raising the water level of the Three Gorges Reservoir began at 10:00 p.m. Wednesday. The water level will rise from the current 135 meters to 148 meters by Oct. 1 and then to 156 meters by mid-October.(Xinhua Photo)

Photo taken on Sept. 20, 2006 shows the water level before the start of raising water level of the Three Gorges Reservoir on the Yangtze River, in central China.(Xinhua Photo)

A patrol craft cruises in the upper reach of the Three Gorges Reservoir on the Yangtze River in central China's Hubei Province Sept. 20, 2006.(Xinhua Photo)

Photo taken on Sept. 20, 2006 shows the water level before the second phase of the water level raising of the Three Gorges Reservoir on the Yangtze River in central China's Hubei Province.(Xinhua Photo)

Editor: Yan