China is one of the countries with relatively poor water resources. 11 batches of 145 national water-saving cities have been built.
utilization rate of urban recycled water has increased by 4.6 times compared with ten years ago. Water-saving irrigation technology can also breed fertile land in the desert Gansu Province, says Zhao Shuanghu, the head of an industrial park in Jiuquan City. The city's water resources per square kilometer of land area are only 1,8 cubic meters, only one-seventeenth of national average.