Shanghai is to build new ecological water networks across the city to enhance the overall water environment, the water bureau said on Monday, World Water Day. To raise awareness of the water environment, the importance of building a clean water ecosystem is being emphasized, and it is included in the city's five-year development plan. There are about 47,000 creeks running through the city. The new networks mean they will be managed more systematically by each urban district and each town in rural areas.