During the formation process of the Yi Dynasty Korea, the land system was reformed, the rank-land system (kwajonbop) and the "office land" (chikchon) system were introduced and lots of existing manors were confiscated.
李氏朝鮮成立の過程で土地制度の改革が行われ、科田制及び職田制が導入され、多くの既存荘園が没収されていった。