What is the relationship between Nanjing's local Spring Festival cultural customs and geographical environment?

Local customs and habits are closely related to the natural environment. Affected by the natural environment, not only people's life and rest are affected, but also entertainment customs. For example, in the north, people like to visit the ice sculpture festival, which is related to the cold climate in the north. Dragon boat races in southern China are also related to local hydrology. The weather in the north is cold, and there is little food in winter. You need to prepare a lot in advance, so you can trade during the Spring Festival. The climate in the south is warm, and you can harvest in June, June and February, so you don't need to prepare food in advance. Houses in the north have thicker walls and shorter houses. Most of them are flat-roofed houses with small doors and windows. Because of the temperate monsoon climate, it is cold and dry in winter, which is conducive to thermal insulation; Most houses in the south are high walls, sloping roofs and large doors and windows, because they belong to subtropical monsoon climate.