Why did ancient Chinese civilization originate from the Weihe Plain instead of the Yangtze River and Yellow River?

The Wei River is the largest tributary of the Yellow River in China. in central Shaanxi Province. Originating from Niaoshu Mountain in Weiyuan County, Gansu Province, it reaches Tongguan in the east and joins the Yellow River. So it’s still the Yellow River.

The Weihe River Basin has complex landforms. The mountains include the northern slopes of the Qinling Mountains that traverse Shaanxi and Gansu, the Liupan Mountains, and the Longshan Mountains. The rift basins include the Guanzhong alluvial plain and the Loess Plateau. The Loess Plateau includes Longdong, Ningnan, and Shaanxi. Plateau ravines and hilly gully areas in the north. Most of the Weihe River Basin is covered by deep loess, which is loose and porous with vertical joints. It is rich in calcium carbonate and is easily eroded by water. The Weihe River Basin is an arid and semi-arid area, with an average annual temperature of 6 to 14°C. The precipitation is 450-700 mm, the annual evaporation is 1000-2000 mm, and the frost-free period is 120-220 days.

The Wei River has sufficient irrigation water and rich water conservancy resources;

The intersection of the rivers forms a plain with flat terrain, which is convenient for growing food crops;

The rivers flood regularly and the land is relatively fertile. , providing sufficient food crops for human reproduction;

The climate is mild and the animal and plant resources are rich, suitable for human survival and reproduction;

Using rivers as transportation channels, strengthen connections and prosper culture.