What happens to population density in china as one travels to east to west?

As one travels from east to west across China, population density generally decreases. The eastern regions, including coastal cities like Shanghai and Beijing, are highly urbanized and densely populated due to economic opportunities. In contrast, the western regions, which include mountainous and less developed areas like Tibet and Xinjiang, have significantly lower population densities. This trend reflects the concentration of infrastructure, resources, and employment opportunities in the east compared to the west.