Water shortage is a big problem for cities' growth. A study in Chengdu, China, looked at how well the city can support its population and economy with water resources. They found that Chengdu has been using more water than it can handle for about 10 years. This shows that the city's economy is growing too fast for its water supply. Different parts of Chengdu have different water resource problems. The eastern area is using too much water, especially the central city. The western area still has untapped water resources. The study suggests that Chengdu needs to balance its population, water resources, and economy to keep growing sustainably.