Why are there few ancient towns along the Yangtze River and Qiantang River?

The small distribution of ancient towns along the Yangtze River and Qiantang River is closely related to their geographical location and human distribution.

The geographical environment along the Yangtze River and Qiantang River is not very superior, and there is not so much financial support for the time being.

For example, there are many reasons for the ancient towns in the Yangtze River Delta. 1. The Yangtze River Delta is wet and rainy, which is conducive to water conservancy reform. As long as there is time and funds, many places can be transformed into ancient towns in water towns; 2. The Yangtze River Delta region is a region where human beings have lived together for thousands of years, and it is rich in humanities and culture. Since ancient times, some ancient towns have been rising and falling, resulting in this situation; 3. The folk customs in the Yangtze River Delta advocate staying old, that is, the leaves must return to their roots. Therefore, many successful people have returned to their hometowns to resettle their industries, with the intention of enjoying their old age, resulting in many ancient houses and ancient towns.