英文 有關長江三峽大壩

The disadvantages of the Yangtze River Three Gorges Project

Want to get great benefits is bound to pay a heavy price. Damage caused by the dam is quite serious: more than 100 million people have migrated, fertile river land will be submerged; rare and endangered and may face the threat of extinction; some of the important historical sights will be submerged, some of which monuments can even be traced back to 2000 years ago.

Other effects include: hydrological characteristics of rivers for thousands of kilometers of irreversible change, fisheries, aquaculture damage caused complex changes in the downstream flood plain, and will not decrease but will increase the possibility of a flood and so on.


Yangtze River Three Gorges Project benefits:





Flood protection



Yangtze River flood is the most serious and most widespread natural disaster. Flood control capacity of Three Gorges Reservoir reached 22.1 billion cubic meters, that can withstand floods once in the millennium. Reduce the Yangtze River middle and lower reaches of the flood plain areas.









Aquaculture



After the completion of the Three Gorges Reservoir, the normal water level in the 175 meters, the reservoir area of about 1150 square kilometers and has a number of suitable aquaculture areas such as library section of the Bay and back areas.

With reservoir flow slows down, enabling the accumulation of nutrients in the reservoir, to provide nutrients for the aquaculture.



Project co-ordination with the water intake system



You can see from the total amount of water of water to stay in North China. Three Gorges project is completed, will increase in the dry season discharge for so much more abundant and the downstream flow in stable, both middle and east of the volume of water will have a greater implicit characterization.


2010-11-06 20:19:13 補充：
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