Taking Suzhou urban planning as an example, how did the layout of ancient buildings in China adapt to local conditions show?

Urban buildings in ancient China have created many layout methods adapted to local conditions. Most cities in the north are located in the plain, so the urban plane and road system are mostly square and regular. Cities in the south, which are close to mountains and waters, often form irregular layout because of the combination of topography, but the road system still strives to be neat. In the south of the Yangtze River, many rivers are dug in addition to roads. In Suzhou, at the latest in the 7th century, there were two sets of main rivers and several watergates around the city, and then a set of river network complementary to the streets was excavated in the city, including trunk lines intersecting vertically and branch lines parallel to the streets, which were used for transportation and drainage, fully demonstrating the integrity and rigor of the planning at that time.