Abstract:As you know,water has long been the most critical agricultural constituent in China.Thus the water pollution is China's major environmental concern.Thousands of fctories and mines dumps waste water.The deforestation caused more frequent flooding,which has brought a lot of casualties and economic loss.
What's more,China's urban water supply is severely challenged.400 out of 660 large and medium-sized cities in China are encountering water shortage,and 1/4 of them have been alarmed.In addtion,the underground water is also polluted more.This thesis is to...