Advantages:1、The great amount of water generates huge flow of hydro power.
2、The conservatory formed by the dam facilitates the fishing industry.
3、The dam also provides a best resort for tourism.
4、Serious floods in the lower part of Yangtze River would be regulated. 5、The dam helps clean the pile of sands in river beds in the lower part of the River.
Disadvantages:
1、The dam may be a potential target for foreign military attack.
2、It changes the climate in the upper part of Yangtze River.
3、Ecological conditions in the Yangtze River is greatly changed and many species become hard to survive.
4、Many tourist attractions are buried by the rise of water level.
5、Potential climate changes may cause other weather calamities and geological disasters.