Those are central China area, Guanzhong area, Northern area, Shandong byland area, the middle and the lower area of Changjiang River, and Ba , Shu and Dian area.

• 按青铜豆出土地点分为六大区域，即中原地区、关中地区、北方地区、山东半岛地区，长江中下游地区、巴蜀滇地区，进行区域性的分析。