Forced government purchase in the Song Dynasty experienced three stages: changing from localization and temporariness in the Northern Song Dynasty to its generalization in the Southern Song Dynasty.

• 在实际执行层面上，强制征购在宋朝大致经历了三个重要阶段，从北宋时的区域性和临时性，演变为南宋时的普遍化和长期化。